Data Package Metadata View Summary

Time series of high-frequency sensor data measuring water temperature, dissolved oxygen, pressure, conductivity, specific conductance, total dissolved solids, chlorophyll a, phycocyanin, fluorescent dissolved organic matter, and turbidity at discrete depths in Falling Creek Reservoir, Virginia, USA in 2018-2023

General Information

Data Package:

Local Identifier:

edi.518.27

Title:

Time series of high-frequency sensor data measuring water temperature, dissolved oxygen, pressure, conductivity, specific conductance, total dissolved solids, chlorophyll a, phycocyanin, fluorescent dissolved organic matter, and turbidity at discrete depths in Falling Creek Reservoir, Virginia, USA in 2018-2023

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

We monitored water quality in Falling Creek Reservoir (Vinton, Virginia, USA, 37.30325 -79.8373) with high-frequency (10-minute) sensors in 2018-2023. All variables were measured at the deepest site of the reservoir adjacent to the dam. Falling Creek Reservoir is owned and managed by the Western Virginia Water Authority as a primary drinking water source for Roanoke, Virginia. This data product consists of one dataset compiled of depth profiles of water temperature on 1-m intervals from 0.1 to 9 m depth; dissolved oxygen at 5 m and 9 m depth; pressure at 9 m depth; and temperature, dissolved oxygen, conductivity, specific conductance, chlorophyll a, phycocyanin, total dissolved solids, fluorescent dissolved organic matter, turbidity, and pressure at ~1.6 m depth.

Publication Date:

2024-02-05

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2018-07-05

End:

2023-12-31

People and Organizations
Contact:	Carey, Cayelan C. (Virginia Tech) [ email ]
Creator:	Carey, Cayelan C. (Virginia Tech)
Creator:	Breef-Pilz, Adrienne (Virginia Tech)
Creator:	Daneshmand, Vahid (University of Florida)
Creator:	Delany, Austin D. (Virginia Tech)
Creator:	Thomas, R. Quinn (Virginia Tech)

Data Entities
Data Table Name:	FCRCatwalk_2018_2023.csv
Description:	Data file of sensor observations from FCR Catwalk
Data Table Name:	FCRCatwalk_maintenancelog_2018_2023.csv
Description:	Maintenance log for FCR catwalk sensors
Other Name:	FCRCatwalk_qaqc_2018_2023.R
Description:	Automated function for QAQC. Also known as L1 function
Other Name:	FCRCatwalk_inspection_2018_2023.Rmd
Description:	Visual inspection script to check the data before writing to CSV
Other Name:	Plot_function.R
Description:	Function to create plots for streaming sensors

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/518/27/fbb8c7a0230f4587f1c6e11417fe9dce
Name:	FCRCatwalk_2018_2023.csv
Description:	Data file of sensor observations from FCR Catwalk
Number of Records:	287978
Number of Columns:	83

Table Structure

Object Name:

FCRCatwalk_2018_2023.csv

Size:

114997337 bytes

Authentication:

c2d0ec9c4026f4a2a388d3e36ae4018f Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

Reservoir

Site

DateTime

ThermistorTemp_C_surface

ThermistorTemp_C_1

ThermistorTemp_C_2

ThermistorTemp_C_3

ThermistorTemp_C_4

ThermistorTemp_C_5

ThermistorTemp_C_6

ThermistorTemp_C_7

ThermistorTemp_C_8

ThermistorTemp_C_9

RDO_mgL_5

RDOsat_percent_5

RDO_mgL_5_adjusted

RDOsat_percent_5_adjusted

RDOTemp_C_5

RDO_mgL_9

RDOsat_percent_9

RDO_mgL_9_adjusted

RDOsat_percent_9_adjusted

RDOTemp_C_9

EXOTemp_C_1

EXOCond_uScm_1

EXOSpCond_uScm_1

EXOTDS_mgL_1

EXODOsat_percent_1

EXODO_mgL_1

EXOChla_RFU_1

EXOChla_ugL_1

EXOBGAPC_RFU_1

EXOBGAPC_ugL_1

EXOfDOM_RFU_1

EXOfDOM_QSU_1

EXOTurbidity_FNU_1

EXOPressure_psi

EXODepth_m

EXOBattery_V

EXOCablepower_V

EXOWiper_V

LvlPressure_psi_9

LvlTemp_C_9

LvlDepth_m_9

RECORD

CR6Battery_V

CR6Panel_Temp_C

Flag_ThermistorTemp_C_surface

Flag_ThermistorTemp_C_1

Flag_ThermistorTemp_C_2

Flag_ThermistorTemp_C_3

Flag_ThermistorTemp_C_4

Flag_ThermistorTemp_C_5

Flag_ThermistorTemp_C_6

Flag_ThermistorTemp_C_7

Flag_ThermistorTemp_C_8

Flag_ThermistorTemp_C_9

Flag_RDO_mgL_5

Flag_RDOsat_percent_5

Flag_RDOTemp_C_5

Flag_RDO_mgL_9

Flag_RDOsat_percent_9

Flag_RDOTemp_C_9

Flag_EXOTemp_C_1

Flag_EXOCond_uScm_1

Flag_EXOSpCond_uScm_1

Flag_EXOTDS_mgL_1

Flag_EXODOsat_percent_1

Flag_EXODO_mgL_1

Flag_EXOChla_RFU_1

Flag_EXOChla_ugL_1

Flag_EXOBGAPC_RFU_1

Flag_EXOBGAPC_ugL_1

Flag_EXOfDOM_RFU_1

Flag_EXOfDOM_QSU_1

Flag_EXOTurbidity_FNU_1

Flag_EXOPressure_psi

Flag_EXODepth_m

Flag_EXOBattery_V

Flag_EXOCablepower_V

Flag_EXOWiper_V

Flag_LvlPressure_psi_9

Flag_LvlTemp_C_9

Definition:

Three-letter code corresponding to sampled reservoir; FCR = Falling Creek Reservoir

Sampling site within each reservoir; 50 = Deep hole or site nearest to dam in the reservoir, attached to the catwalk

Date and time of sampling. All data were collected in the eastern standard time zone of the U.S.A., with daylight savings time not observed, GMT -5

Water temperature at the surface as measured by the thermistor

Water temperature at 1 meter depth as measured by the thermistor

Water temperature at 2 meter depth as measured by the thermistor

Water temperature at 3 meter depth as measured by the thermistor

Water temperature at 4 meter depth as measured by the thermistor

Water temperature at 5 meter depth as measured by the thermistor

Water temperature at 6 meter depth as measured by the thermistor

Water temperature at 7 meter depth as measured by the thermistor

Water temperature at 8 meter depth as measured by the thermistor

Water temperature at 9 meter depth as measured by the thermistor

Dissolved Oxygen (DO) concentration at 5 meter depth as measured by the RDO Sensor

Dissolved Oxygen (DO) percent saturation at 5 meter depth as measured by the RDO Sensor

One period in summer 2019 appears to have had extensive fouling on the 5 meter oxygen sonde, as evidenced by inexplicably low oxygen readings. We adjusted these values using linear or square root functions to best match simultaneous readings from a high-resolution CTD profile. This column gives the adjusted values. Added in the 2019 revision. Values not adjusted are the same as values from RDO_mgL_5.

One period in summer 2019 appears to have had extensive fouling on the 5 meter oxygen sonde, as evidenced by inexplicably low oxygen readings. We adjusted these values using linear or square root functions to best match simultaneous readings from a high-resolution CTD profiler. This column gives the adjusted values. Added in the 2019 revision. Values not adjusted are the same as values from RDOsat_percent_5.

Water temperature as measured by the RDO sonde at 5 meter depth

Dissolved Oxygen (DO) concentration at 9 meter depth as measured by the RDO Sensor

Dissolved Oxygen (DO) percent saturation at 9 meter depth as measured by the RDO Sensor

Two periods in summer 2019 and four periods in 2020 appears to have had extensive fouling on the 9 meter oxygen sonde, as evidenced by inexplicably low oxygen readings. We adjusted these values using linear or square root functions to best match simultaneous readings from a high-resolution CTD profiler. This column gives the adjusted values. Added in the 2019 and 2020 revision. Values not adjusted are the same as values from RDO_mgL_9.

Water temperature as measured by the RDO sonde at 9 meter depth

Water temperature at 1.6 meter depth as measured by the EXO2 Sonde

Conductivity at 1.6 meter depth as measured by the EXO2 Sonde

Specific conductance at 1.6 meter depth as measured by the EXO2 Sonde

Total Dissolved Solids (TDS) at 1.6 meter depth as measured by the EXO2 Sonde

Dissolved Oxygen percent saturation at 1.6 meter depth as measured by the EXO2 Sonde

Dissolved Oxygen at 1.6 meter depth as measured by the EXO2 Sonde

Total Chlorophyll a at 1.6 meter depth as measured by the EXO2 Sonde in RFU

Total Chlorophyll a at 1.6 meter depth as measured by the EXO2 Sonde in ugL

Blue-Green Algae Phycocyanin at 1.6 meter depth as measured by the EXO2 Sonde in RFU

Blue-Green Algae Phycocyanin at 1.6 meter depth as measured by the EXO2 Sonde in ugL

Fluorecent Dissolved Organic Matter at 1.6 meter depth as measured by the EXO2 Sonde in RFU

Fluorescent Dissolved Organic Matter at 1.6 meter depth as measured by the EXO2 Sonde in QSU

Turbidity measured in FNU at 1.5 meters depth as measured by the EXO2 Sonde

Gauge pressure of EXO2 sonde at 1.6m; measured relative to ambient atmospheric pressure

Depth of the EXO2 sonde as measured by the EXO sonde

Voltage of the EXO2 sonde internal batteries

Measure of power being used by the cable connected to the CR6 datalogger as measured by the EXO sonde

Wiper brush cleaning system activation signal as measured by the EXO2 sonde

Pressure from CS-451 pressure sensor at about ~9 m as measured relative to ambient atmospheric pressure

Water temperature from CS-451pressure sensor at the last sensor in the string (about 9m)

Depth of the pressure sensor at 9m derived from Lvl_Pressure_psi_9 where 1psi=0.70455m (See Methods)

The nth record collected since the instrument was turned on or the program was altered

The battery voltage of the CR6

Panel temperature of the CR6 data logger

Data flag for temperature data at 0.1m (ThermistorTemp_C_surface)

Data flag for temperature data at 1m (ThermistorTemp_C_1)

Data flag for temperature data at 2m (ThermistorTemp_C_2)

Data flag for temperature data at 3m (ThermistorTemp_C_3)

Data flag for temperature data at 4m (ThermistorTemp_C_4)

Data flag for temperature data at 5m (ThermistorTemp_C_5)

Data flag for temperature data at 6m (ThermistorTemp_C_6)

Data flag for temperature data at 7m (ThermistorTemp_C_7)

Data flag for temperature data at 8m (ThermistorTemp_C_8)

Data flag for temperature data at 9m (ThermistorTemp_C_9)

Data flag for DO data in milligrams per liter at 5 meter depth (RDO_mgL_5)

Data flag for DO saturation data at 5 meter depth (RDOsat_percent_5)

Data flag for temperature on the DO sensor at 5 meter depth (RDOTemp_C_5)

Data flag for DO data in milligrams per liter at 9 meter depth (RDO_mgL_9)

Data flag for DO saturation data at 9 meter depth (RDOsat_percent_9)

Data flag for temperature on the DO sensor at 9 meter depth (RDOTemp_C_9)

Data flag for EXO2 Temperature data (EXOTemp_C_1)

Data flag for EXO2 conductivity data (EXOCond_uScm_1)

Data flag for EXO2 specific conductance data (EXOSpCond_uScm_1)

Data flag for EXO2 total dissolved solids data (EXOTDS_mgL_1)

Data flag for EXO2 DO saturation data at 1.6 meter depth (EXODOsat_percent_1)

Data flag for EXO2 DO data in miligrams per liter at 1.6 meter depth (EXODO_mgL_1)

Data flag for EXO2 chlorophyll data measured in Relative Fluorescence Units (EXOChla_RFU_1)

Data flag for EXO2 chlorophyll data measured in micrograms per liter (EXOChla_ugL_1)

Data flag for EXO2 phycocyanin data measured in Relative Fluorescence Units (EXOBGAPC _RFU_1)

Data flag for EXO2 phycocyanin data measured in micrograms per liter (EXOBGAPC_ugL_1)

Data flag for EXO2 fluorescent dissolved organic matter data in Relative Fluorescence Units (EXOfDOM_RFU_1)

Data flag for EXO2 fluorescent dissolved organic matter data in Relative Fluorescence Units (EXOfDOM_QSU_1)

Data flag for EXO2 turbidity data in FNU (EXOTurbidity_FNU_1)

Data flag for EXO2 pressure sensor in psi (EXOPressure_psi)

Data flag for EXO2 depth sensor in meters (EXODepth_m)

Data flag for EXO2 battery in volts (EXOBattery_V)

Data flag for EXO2 cable power in volts (EXOCablepower_V)

Data flag for EXO2 wiper in volts (EXOWiper_V)

Data flag for pressure transducer at 9m (LvlPressure_psi_9)

Data flag for pressure transducer temperature at 9m (LvlTemp_C_9)

Storage Type:

string

float

date

float

string

Measurement Type:

nominal

ratio

dateTime

ratio

nominal

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	FCR
Definition	Falling Creek Reservoir
Source

Unit	dimensionless
Type	natural
Min	50
Max	50

Format	YYYY-MM-DD hh:mm:ss
Precision

Unit	celsius
Type	real
Min	0.6666809
Max	32.52526

Unit	celsius
Type	real
Min	1.170435
Max	29.90374

Unit	celsius
Type	real
Min	1.318781
Max	28.73498

Unit	celsius
Type	real
Min	1.491815
Max	25.95062

Unit	celsius
Type	real
Min	1.507379
Max	22.0729

Unit	celsius
Type	real
Min	1.671137
Max	20.24789

Unit	celsius
Type	real
Min	1.807947
Max	17.53546

Unit	celsius
Type	real
Min	1.815729
Max	15.87316

Unit	celsius
Type	real
Min	1.801202
Max	14.43685

Unit	celsius
Type	real
Min	1.824426
Max	13.82519

Unit	milligramsPerLiter
Type	real
Min	0
Max	16.51595

Unit	dimensionless
Type	real
Min	0
Max	125.954

Unit	milligramsPerLiter
Type	real
Min	0
Max	16.51595

Unit	dimensionless
Type	real
Min	0
Max	125.954

Unit	celsius
Type	real
Min	1.744415
Max	20.1016

Unit	milligramsPerLiter
Type	real
Min	0
Max	14.51486

Unit	dimensionless
Type	real
Min	0
Max	124.5511

Unit	milligramsPerLiter
Type	real
Min	0
Max	14.51486

Unit	dimensionless
Type	real
Min	0
Max	124.5511

Unit	celsius
Type	real
Min	1.806366
Max	13.9314

Unit	celsius
Type	real
Min	0
Max	29.61

Unit	microSiemensPerCentimeter
Type	real
Min	5
Max	44.46

Unit	microSiemensPerCentimeter
Type	real
Min	29.31
Max	49.88

Unit	milligramsPerLiter
Type	real
Min	19.05
Max	32.42

Unit	dimensionless
Type	real
Min	0
Max	241.92

Unit	milligramsPerLiter
Type	real
Min	0
Max	22.05

Unit	RelativeFluorescenceUnits
Type	real
Min	0
Max	46.9

Unit	microgramsPerLiter
Type	real
Min	0.02
Max	189.67

Unit	RelativeFluorescenceUnits
Type	real
Min	0
Max	10.16

Unit	microgramsPerLiter
Type	real
Min	0
Max	10.22

Unit	RelativeFluorescenceUnits
Type	real
Min	1.53
Max	18.95

Unit	QuinineSulfateUnits
Type	real
Min	4.65
Max	58.1

Unit	FormazinNephelometricUnits
Type	real
Min	0
Max	125.28

Unit	poundsPerSquareInch
Type	real
Min	0.82
Max	4.65

Unit	meter
Type	real
Min	0.581
Max	3.274

Unit	volt
Type	real
Min	4.51
Max	6.35

Unit	volt
Type	real
Min	0
Max	14.77

Unit	volt
Type	real
Min	1
Max	1.35

Unit	poundsPerSquareInch
Type	real
Min	12.3681
Max	13.70621

Unit	celsius
Type	real
Min	1.801394
Max	13.19187

Unit	meter
Type	real
Min	8.713944855
Max	9.6567102555

Unit	number
Type	whole
Min	0
Max	51616

Unit	volt
Type	real
Min	0
Max	15.67

Unit	celsius
Type	real
Min	-14.92
Max	44.05

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Code Definition

Code	8
Definition	Value corrected using a constant offset due to two thermistor malfunctions in Fall 2020
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Code Definition

Code	8
Definition	Value corrected using a constant offset due to two thermistor malfunctions in Fall 2020
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	6
Definition	very questionable value due to potential fouling. Values adjusted using a linear or square root function to match high-resolution CTD profiles are given in RDO_mgL_5
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	6
Definition	very questionable value due to potential fouling. Values adjusted using a linear or square root function to match high-resolution CTD profiles are given in RDO_sat_percent_5
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	6
Definition	very questionable value due to potential fouling. Values adjusted using a linear or square root function to match high-resolution CTD profiles are given in RDO_mgL_9
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	6
Definition	very questionable value due to potential fouling. Values adjusted using a linear or square root function to match high-resolution CTD profiles are given in RDO_sat_percent_9
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	4
Definition	value removed due to fouling and set to NA
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	4
Definition	value removed due to fouling and set to NA
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	3
Definition	negative values set to 0
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
Source

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA, see Methods section for more detail on QAQC process
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	7
Definition	missing data
Source

Missing Value Code:

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/518/27/ec278dc85762fb15664a1ac7e95f2c59
Name:	FCRCatwalk_maintenancelog_2018_2023.csv
Description:	Maintenance log for FCR catwalk sensors
Number of Records:	241
Number of Columns:	11

Table Structure

Object Name:

FCRCatwalk_maintenancelog_2018_2023.csv

Size:

37420 bytes

Authentication:

2995ee7761ae0b71d6c05aede03b9f48 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

;

Table Column Descriptions

Column Name:

Reservoir

Site

DataStream

TIMESTAMP_start

TIMESTAMP_end

start_parameter

end_parameter

flag

update_value

adjustment_code

notes

Definition:

Three-letter code corresponding to sampled reservoir, FCR=Falling Creek Reservoir

Sampling site within each reservoir, 50=Deepest part of the reservoir

Code corresponding to data set nickname;CAT=sensors deployed off the Catwalk

Date and time maintenance began. All data were collected in the GMT -5 time zone (Eastern Standard Time), with daylight savings time not observed.

Date and time maintenance ended. All data were collected in the GMT -5 time zone (Eastern Standard Time), with daylight savings time not observed.

Name of start variable in the sequence corresponding to catwalk sensor string data table names

Name of end variable in the sequence corresponding to catwalk sensor string data table names

Data flag applied to associated variable

New value to update the data to in the QAQC process

Chunks of code or a numeric offset to change the data to in the QAQC process

Notes from the field crew on the maintenance or reason for changing the data

Storage Type:

string

float

string

date

string

Measurement Type:

nominal

ratio

nominal

dateTime

nominal

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	FCR
Definition	Falling Creek Reservoir
Source

Unit	dimensionless
Type	natural
Min	50
Max	50

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	CAT
Definition	Nickname for the sensors that hang off the Catwalk at Falling Creek Reservoir
Source

Format	YYYY-MM-DD hh:mm:ss
Precision

Format	YYYY-MM-DD hh:mm:ss
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	EXOChla_RFU_1
Definition	Fluorecent Dissolved Organic Matter at 1.6 meter depth as measured by the EXO2 Sonde in RFU
Source

Code Definition

Code	EXOCond_uScm_1
Definition	Conductivity at 1.6 meter depth as measured by the EXO2 Sonde
Source

Code Definition

Code	EXOTemp_C_1
Definition	Fluorecent Dissolved Organic Matter at 1.6 meter depth as measured by the EXO2 Sonde in RFU
Source

Code Definition

Code	EXOTurbidity_FNU_1
Definition	Water temperature at 1.6 meter depth as measured by the EXO Sonde
Source

Code Definition

Code	EXOfDOM_RFU_1
Definition	Turbidity measured in FNU at 1.5 meters depth as measured by the EXO2 Sonde
Source

Code Definition

Code	LvlPressure_psi_9
Definition	Measure of the pressure from the bottom sensor in the string which is about 9m
Source

Code Definition

Code	RDO_mgL_5
Definition	Dissolved Oxygen (DO) concentration at 5 meter depth as measured by the RDO Sensor
Source

Code Definition

Code	RDO_mgL_9
Definition	Dissolved Oxygen (DO) concentration at 9 meter depth as measured by the RDO Sensor
Source

Code Definition

Code	RDOsat_percent_5
Definition	Dissolved Oxygen (DO) percent saturation at 5 meter depth as measured by the RDO Sensor
Source

Code Definition

Code	RDOsat_percent_9
Definition	Dissolved Oxygen (DO) percent saturation at 9 meter depth as measured by the RDO Sensor
Source

Code Definition

Code	ThermistorTemp_C_1
Definition	Water temperature at 1 meter depth as measured by the thermistor
Source

Code Definition

Code	ThermistorTemp_C_2
Definition	Water temperature at 2 meter depth as measured by the thermistor
Source

Code Definition

Code	ThermistorTemp_C_4
Definition	Water temperature at 4 meter depth as measured by the thermistor
Source

Code Definition

Code	ThermistorTemp_C_5
Definition	Water temperature at 5 meter depth as measured by the thermistor
Source

Code Definition

Code	ThermistorTemp_C_surface
Definition	Water temperature at the surface as measured by the thermistor
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	EXOBGAPC_ugL_1
Definition	Blue-Green Algae Phyocycanin at 1.6 meter depth as measured by the EXO2 Sonde in RFU
Source

Code Definition

Code	EXOTDS_mgL_1
Definition	Fluorescent Dissolved Organic Matter at 1.6 meter depth as measured by the EXO2 Sondein QSU
Source

Code Definition

Code	EXOWiper_V
Definition	Total Dissolved Solids (TDS) at 1.6 meter depth as measured by the EXO2 Sonde
Source

Code Definition

Code	EXOfDOM_QSU_1
Definition	Wiper brush cleaning system activation signal as measured by the EXO2 sonde
Source

Code Definition

Code	LvlTemp_C_9
Definition	Water temperature at the last sensor in the string (about 9m) as measured by the pressure transducer
Source

Code Definition

Code	RDOTemp_C_9
Definition	Dissolved Oxygen (DO) percent saturation at 5 meter depth as measured by the RDO Sensor
Source

Code Definition

Code	RDOsat_percent_5
Definition	Dissolved Oxygen (DO) percent saturation at 9 meter depth as measured by the RDO Sensor
Source

Code Definition

Code	RDOsat_percent_9
Definition	Water temperature as measured by the RDO sonde at 9 meter depth
Source

Code Definition

Code	ThermistorTemp_C_9
Definition	Water temperature at 9 meter depth as measured by the thermistor
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	value removed due to maintenance and set to NA
Source

Code Definition

Code	2
Definition	negative or outlier value removed and set to NA
Source

Code Definition

Code	4
Definition	value removed due to fouling and set to NA
Source

Code Definition

Code	5
Definition	questionable value due to potential fouling
Source

Code Definition

Code	6
Definition	very questionable value due to potential fouling. Values adjusted using a linear or square root function to match high-resolution CTD profiles
Source

Code Definition

Code	7
Definition	missing data
Source

Code Definition

Code	8
Definition	Value corrected using a constant offset due to two thermistor malfunctions in Fall 2020
Source

Definition

New value to update the data to in the QAQC process

Definition

Chunks of code or a numeric offset to change the data to in the QAQC process

Definition

Notes from the field crew on the maintenance or reason for changing the data

Missing Value Code:

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	value is missing

Code	NA
Expl	Maintenance started before the sensors were out

Code	NA
Expl	Maintenance is on going and has no current end date

Code	NA
Expl	There is only one parameter flagged

Code	NA
Expl	There is only one parameter flagged

Code	NA
Expl	value is missing

Code	NA
Expl	No updated value used

Code	NA
Expl	No adjustment code used

Code	NA
Expl	No Note recorded

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

FCRCatwalk_qaqc_2018_2023.R

Entity Type:

unknown

Description:

Automated function for QAQC. Also known as L1 function

Physical Structure Description:

Object Name:

FCRCatwalk_qaqc_2018_2023.R

Size:

24093 bytes

Authentication:

59e54eaae44b43e60c99197d7d8fa972 Calculated By MD5

Externally Defined Format:

Format Name:

text/plain

Data:

https://pasta-s.lternet.edu/package/data/eml/edi/518/27/4f7603bcb6453ef7e6f3bd9df81ab93f

Non-Categorized Data Resource

Name:

FCRCatwalk_inspection_2018_2023.Rmd

Entity Type:

unknown

Description:

Visual inspection script to check the data before writing to CSV

Physical Structure Description:

Object Name:

FCRCatwalk_inspection_2018_2023.Rmd

Size:

26968 bytes

Authentication:

23476542dddc6dae24fea71abd90faf5 Calculated By MD5

Externally Defined Format:

Format Name:

text/x-markdown

Data:

https://pasta-s.lternet.edu/package/data/eml/edi/518/27/a1a254cba453c056ad9638e49a9db505

Non-Categorized Data Resource

Name:

Plot_function.R

Entity Type:

unknown

Description:

Function to create plots for streaming sensors

Physical Structure Description:

Object Name:

Plot_function.R

Size:

7487 bytes

Authentication:

2b095600901478678d884b6899546b37 Calculated By MD5

Externally Defined Format:

Format Name:

text/plain

Data:

https://pasta-s.lternet.edu/package/data/eml/edi/518/27/e55481a570ce3cddee9ebd01f5726528

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data (\"Data User\" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available \"as is.\" The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
carey lab controlled vocabulary	Carey Lab, Virginia Tech, fDOM, dissolved organic matter, Western Virginia Water Authority, Falling Creek Reservoir, Virginia Reservoirs, Virginia Reservoirs LTREB, LTREB, FCR, FCRCatwalk, Catwalk, sensors
lter controlled vocabulary	lakes, water quality, water temperature, dissolved oxygen, conductivity, specific conductance, chlorophyll a, pressure, physical properties, fluorescence
cuahsi controlled vocabulary	lake, reservoir, reservoirs, high-frequency sensors

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

########################################################### DESCRIPTION OF DATASET AND ASSOCIATED SCRIPTS:

Data from multiple water quality sensors were collected from a fixed platform at the deep hole of Falling Creek Reservoir (located at 37.30325, -79.8373 and referred to as Site 50) in 2018-2023. Data were collected using water temperature thermistors, dissolved oxygen sensors, pressure sensors, and a YSI EXO2 sonde. Profiles were recorded every ten minutes from 2018-07-05 - 2023-12-31. We deployed the thermistors and 5 and 9 m dissolved oxygen sensors in 2018-07-05 and the EXO2 sonde at 1 m depth was deployed in August 2018. The EXO2 sonde was moved from 1.0 m to 1.6 m depth on 2019-05-20 at 12:40 (1.6 m is the depth of one of the outtake valves for drinking water treatment). As the EXO2 sonde has been moored near the outtake valve at 1.6 m (assuming full pond), the exact depth of the EXO2 sonde varied over time due to small water level changes in the reservoir and changes in the deployed depth. We deployed a pressure transducer at 9 m in 2020-05 to help track water level changes.

This data package includes 1 data file (FCRCatwalk_2018_2023), QAQC R script (FCRCatwalk_qaqc_2018_2023), maintenance log (FCRCatwalk_maintenancelog_2018_2023), visual inspection R script (FCRCatwalk_inspection_2018_2023), and additional scripts (Plotting_function). The QAQC script removes outliers, and applies the maintenance log to clean the data files included in the package; the visual inspection script provides code for plotting the data files; and the Plotting_function provides the function necessary for the inspection script.

########################################################### DETAILED DESCRIPTION OF MAINTENANCE AND ISSUES FOR EACH SENSOR GROUP:

At the time of deployment in summer 2018, the thermistor string was factory-calibrated and verified against a NIST-traceable thermistor. The in situ dissolved oxygen sensors were calibrated using a one-point calibration according to the standards and practices outlined in the user manual. The YSI EXO2 Sonde sensors, except for temperature, were user-calibrated as outlined in the user manual and KOR EXO software. The reservoir has an oxygenation management system that has been used for whole ecosystem experiments throughout the deployment of the sensors, resulting in various oxygen conditions over time. Because of the operation of the oxygenation system, different levels of QAQC have been applied to the sensors, especially the dissolved oxygen sensors deployed at 5m and 9 m. See the end of this section for more information about oxygenation system details.

Maintenance data gaps: The sensor string was regularly brought up to the surface for routine maintenance, dates and times of which were recorded in the FCRCatwalk_maintenancelog_2018_2023.csv file. To account for these regular cleanings, we used an automated QAQC script (FCRCatwalk_qaqc_2018_2023.R) which indexes the dates and times recorded in the maintenance log and sets the data to NA and the corresponding Flag columns to 1. Any data points outside of the immediate time frame that the sensor string was out of the water that do not reflect ambient conditions (due to sensor re-equilibration after being re-deployed underwater) were also set to NA, with corresponding Flags set to 1. To prevent erroneous data after sensor cleaning, DO measurements for the two hours after any maintenance on the DO sensors were changed to NAs to give ample time for the sensors to equilibrate. In 2023, we applied the same protocol to the temperature sensor but with an equilibration time of 30 minutes as opposed to two hours. We did not go back and change values from 2018-2022 because we already changed unequilibrated values to NA in the maintenance log.

Missing Data Gaps: This section includes data gaps greater than 10 minutes between observations. All sensors: 2020-10-09 08:00 - 09:20, 2020-10-19 14:00 - 17:00, 2020-10-20 10:00 - 10:40, 2020-10-20 13:00 - 13:40, 2020-10-22 09:00 - 09:30, 2021-01-07 11:00 - 11:30, 2021-02-26 12:00 - 12:40, 2021-06-28 13:00 - 14:00, 2022-05-05 08:30 - 08:50, 2023-02-03 13:50 - 14:10, 2023-03-07 12:00 - 12:20, 2023-07-31 12:50 - 14:00, 2023-10-03 15:00 - 15:20.

EXO2: 2018-08-20 14:30-2018-08-27 17:50; 2018-09-25 10:40-2018-10-01 11:00; 2020-12-02 12:50-2020-12-27 11:50-Removed for maintenance; 2021-04-26 11:00-13:00-Removed for calibration; 2021-12-13 10:25- 2021-12-14 12:25-Removed for cleaning and sensor checks in lab; 2021-06-15 11:40-2021-06-18 10:20-Connection issue so no data were streaming; 2021-12-13 10:25:00- 2021-12-14 12:25 -Removed for cleaning; 2022-05-05 08:30 - 08:50; 2022-12-12 10:30 - 2022-12-17 15:50 -Removed for cleaning/calibration/servicing; 2022-12-29 03:10 - 2023-01-02 16:20 -Issue with connection to the datalogger and no data were recorded.

Sensor Issues:

Dissolved Oxygen sondes at 5 and 9 m:

2023: From 2023-07 23 to 2023-07-24, the 5m DO sensor was not recording any values. After changing cables, the sensor worked again. From 2023-07 23 to 2023-07-28, the 9m DO sensor was not recording any values. After trimming the flying lead wires on the cable, the sensor worked again.

2021: At 9m, there were some high oxygen readings on 2021-06-07 and 2021-06-08 about 3 hours after the temperature string had been pulled up. Handheld sensors show that oxygen was at ~0 mg/L at 9m at this time, so these readings were changed to NA and flagged. The oxygenation system in 2021 was first turned on 11 June at 9:40 EST but experienced malfunctions until repairs were finished on 2021-09-14 13:30 EST. During this intervening time, we have flagged the data with a flag of 5 because of the fluctuations in oxygen due to intermittent functioning, malfunctioning, and repairs of the oxygenation system. The temperature string was tangled after some maintenance on 2021-06-18 10:00 and was fixed on 2021-06-21 10:00. It was tangled again on 2021-07-21 13:20 and fixed on 2021-07-26 12:00. Consequently, there was a data gap for both DO sensors with a data flag of 1 for the flag columns of the sensors affected. The 9m RDO-PRO_X sensor was calibrated on 2021-08-18 with a two-point calibration using 100 percent air saturation and a 0 percent saturation with a sodium sulfite solution. On 2021-08-24, the anti-fouling caps on the RDO-PRO-X sensors were removed as they were causing fouling especially in anoxic hypolimnion. The RDO-PRO-X sensor cap at 5m was replaced on 2021-08-31 and checked with a 100 percent air saturation and 0 percent saturation.

QAQC methods:

Maintenance performed on RDO sensors- When the oxygenation system is activated, we have observed a rapid fouling of the 9m DO probe, which we typically flagged with a 5 (questionable value due to potential fouling) or 6 (very questionable value due to potential fouling). Values adjusted using a linear or square root function to match high-resolution CTD profiles of DO were given in the columns RDO_mgL_5_adjusted and RDO_sat_percent_5_adjusted (2019) and RDO_mgL_9_adjusted and RDOsat_percent_9_adjusted (2019 and 2020), based on comparison with other sensors. Adjusted values were flagged and values not adjusted were set to sensor readings (see below for more info). This equation is also in the FCRCatwalk_MaintenanceLog_2018_2023.csv adjustment_code column.

5 meter oxygen sonde: This equation will give you the values in the RDO_mgL_5_adjusted and RDOsat_percent_5_adjusted: 2019-08-11 00:00 to 2019-08-12 12:40

- DO (mg/L) = DO observed plus the square root of the difference between the current time and 2019-08-11 00:00 in minutes, divided by 30

- DO (percent saturation) = DO observed plus the square root of the difference between the current time and 2019-08-11 00:00 in minutes, divided by 30/11.3*100, with 11.3/100 being the potential saturation of oxygen in water at 10 degrees C

9 meter oxygen sonde: This equation will give you the values in the RDO_mgL_9_adjusted and RDOsat_percent_9_adjusted: 2019-08-05 12:45 to 2019-08-12 12:40

- DO (mg/L) = DO observed plus the square root of the difference between the current time and 2019-08-05 12:45: in minutes, divided by 70

- DO (percent saturation) = DO observed plus the square root of the difference between the current time and 2019-08-05 12:45 in minutes, divided by 70/11.3*100, with 11.3/100 being the potential saturation of oxygen in water at 10 degrees C

2019-09-02 13:00 to 2019-09-27 12:30 - DO (mg/L) = DO observed plus the difference between the current time and 2019-09-02 13:00 in minutes, divided by 30000

- DO (percent saturation) = DO observed plus the difference between the current time and 2019-09-02 13:00:00 in minutes, divided by 30000/11.3*100, with 11.3/100 being the potential saturation of oxygen in water at 10 degrees C

2020-08-11 07:00 to 2020-08-17 12:50 - DO (mg/L) = DO observed plus the difference between the current time and 2020-08-11 07:00 in minutes, divided by 6500

- DO (percent saturation) = DO observed plus the difference between the current time and 2020-08-11 07:00 in minutes, divided by 6500/11.3*100, with 11.3/100 being the potential saturation of oxygen in water at 10 degrees C

2020-08-19 20:00 to 2020-08-24 10:40 - DO (mg/L) = DO observed plus the difference between the current time and 2020-08-19 20:00 in minutes, divided by 6500

- DO (percent saturation) = DO observed plus the difference between the current time and 2020-08-19 20:00 in minutes, divided by 6500/11.3*100, with 11.3/100 being the potential saturation of oxygen in water at 10 degrees C

2020-08-26 12:00 to 2020-09-02 10:50 - DO (mg/L) = DO observed plus the difference between the current time and 2020-08-26 12:00 in minutes, divided by 10000

- DO (percent saturation) = DO observed plus the difference between the current time and 2020-08-26 12:00 in minutes, divided by 10000/11.3*100, with 11.3/100 being the potential saturation of oxygen in water at 10 degrees C

2020-09-05 06:00 to 2020-09-09 17:50 - DO (mg/L) = DO observed plus the difference between the current time and 2020-09-05 06:00 in minutes, divided by 3000

- DO (percent saturation) = DO observed plus the difference between the current time and 2020-09-05 06:00 in minutes, divided by 3000/11.3*100, with 11.3/100 being the potential saturation of oxygen in water at 10 degrees C

Water temperature (thermistors): note that this section is in reverse chronological order

2022: The temperature was tangled from 2022-05 23 to 2022-05-25 and again from 2022-08-08 to 2022-08-9. See FCRCatwalk_maintenancelog_2018_2023.csv for exact times. Data for the thermistors, RDO sensors, and pressure sensor were removed and flagged with 1.

2021: Thermistors at 1m (SN 3724) and 4m (SN 3747) were reading higher than normal (see the section below regarding late October-December 2020) and were removed on 2021-07-01 14:30 and replaced on 2021-02-26 12:00 with SN 3966 and SN 4013. No data were recorded at 1m or 4m during that time. The temperature string was tangled after some maintenance on 2021-06-18 10:00 and was fixed on 2021-06-21 at 10:00. It was tangled again on 2021-07-21 13:20 and fixed on 2021-07-26 12:00. Consequently, there was a data gap for all the temperature sensors with a data flag of 1 for those sensors affected.

2020: The temperature string was tangled after some maintenance on 2020-10-09 and was fixed on 2020-10-11. Consequently, there was a data gap for the temperature sensors at 5, 6, 7, 8 and 9 m from 2020-10-09 to 2020-10-11, with a data flag of 1 for those sensors affected. On October 19, 2020, the NexSens T-Node FR Thermistor (Serial No. 3718) deployed at 0.1 m stopped working and read NA until 2020-10-20, when we took the thermistor from 2 m and put it at 0.1 m. There was a data gap at 2 m from 2020-10-20 to 2020-10-22. We put the NexSens T-Node Thermistor (Serial No. 3903) from Beaverdam Reservoir, another one of our monitoring sites, at 0.1 m in FCR and returned the 2 m thermistor back to its original depth at 2 m on 2020-10-22. Consequently, there was a data gap for 0.1 m temperature from October 19-20, 2020 and a data gap for 2 m temperature from 2020-10-20 to 2020-10-22, all flagged with data code 1.

In late October-December 2020, two of the Nexus T-Node FR Thermistors (at 1 m and 4 m) appeared to be reading water temperatures higher than the sensors deployed above them. On 2020-01-07, we put the 2 suspect thermistors and 4 other thermistors adjacently located (0.1, 2, 3, and 9 m) in a water bath in the field for an hour. The water bath showed that thermistors at 1 m and 4m were exhibiting higher readings than the others in the bath. The 1 m thermistor was reading about 0.2496℃ higher, and the 4 m thermistor was reading about 0.3862℃ higher. To correct for this discrepancy, we created an offset for both the 1 m and 4 m thermistors from 2020-11-01 to 2020-12-31 (the time period in which the thermistors were consistently exhibiting higher temperature readings). First, we took the average temperature of the thermistors directly above and below the suspect ones for each 10-min interval observations during 2020-11-01 to 2020-12-31. Second, we calculated the difference between the suspect thermistor’s reading and its neighbor's average, which we averaged over the entire time period to calculate a mean offset. Third, this mean offset was subtracted from the observed thermistor reading on each observation. For example, for the 1m thermistor, we took the average of the 0.1m thermistor and the 2m thermistor for the neighbor average at each time interval, then we found the difference between the 1m thermistor and the neighbor average to calculate the offset value for the entire 2020-11-01 to 2020-12-31 period. The offset value for the 1m thermistor was 0.22617℃ and for the 4m thermistor was 0.18122℃. The offset was subtracted from the 1m thermistor values from 2020-10-29 13:00 EST to 2020-12-31 23:50 EST and the offset for the 4m thermistor was subtracted from the raw values on 2020-10-31 05:00 EST to 2020-12-31 23:50 EST. These times were chosen because the broken thermistors were reading consistently higher than the one above them. The observations that received an offset were flagged with data code 8.

Pressure Transducer at 9 m: note that this section is in reverse chronological order.

2023: The pressure transducer was moved to replace a broken sensor on 2023-07-10 09:30. We returned it on 2022-07-13 14:00 because we were sampling the bathymetery. The transducer was moved again on 2023-07-17 11:10 and replaced on 2023-09-05 13:30.

2021: The temperature string was tangled after some maintenance on 2021-06-18 10:00 and was fixed on 2021-06-21 10:00. It was tangled again on 2021-07-21 13:20 and fixed on 2021-07-26 12:00. Consequently, there were data gaps for the pressure transducer, which we flagged a 1 for all sensors that were affected during the event.

EXO2 Depth sensor: The EXO2 sonde we have is vented but the cable is not so the depth reading is not always accuate on the instrument. In order to correct for this we have attempted to moor the sonde at the same level but due to changes in water and deployment practices the sonde is not always exactly 1.6 m below the surface. We try to keep the sonde no more than 3 meter below the surface and if we see that is has slipped then we reposition the sonde.

EXO2 Chlorophyll-a and Phycocyanin QAQC:

The chlorophyll-a and phycocyanin sensor data underwent a QAQC process to remove extreme outliers (see ‘Leading and Lagging QAQC’ section of FCRCatwalk_qaqc_2018_2023.R script). Outliers were defined as absolute values greater than four standard deviations from previous and subsequent measurements for each individual observation. These outliers were set to NA and with a 2 in their respecive flag columns. In addition, from 2018-10-01 to 2019-03-03, we identified outliers with absolute values greater than four standard deviations from the average measurement. These outliers were set to NA and flagged as 4 for fouled sensor. After 2019-03-03, outlier values identified in this way were left in the dataset and flagged as 5 for being a questionable value.

EXO2 fDOM:

The fDOM sensor data underwent a QAQC process to remove extreme outliers (see ‘Leading and Lagging QAQC’ section of FCRCatwalk_qaqc_2018_2023.R script). Outliers were defined as absolute values greater than two standard deviations from leading or lagging measurements for each individual observation. These outliers were set to NA and identified in the Flag column as a value of 2.

EXO2 Conductivity, Specific conductance, and Total Dissolved Solids (TDS):

Conductivity, specific conductance, and TDS sensor data underwent a QAQC process to remove extreme outliers (see ‘Leading and Lagging QAQC’ section of FCRCatwalk_qaqc_2018_2023.R script). Outliers were defined as absolute values greater than two standard deviations from previous and subsequent measurements for each individual observation. These outliers were set to NA and identified in the Flag_fDOM column as a value of 2. During the summer of 2020, there were some high conductivity events. Any value above 42 microsiemens for conductivity, specific conductivity, and TDS were flagged as 5 (questionable value) but not removed from the dataset.

All other observations went through the same QAQC processing for extreme outliers (see ‘Leading and Lagging QAQC’ section of FCRCatwalk_qaqc_2018_2023.R script).

#################

EXO2 Sonde Maintenance: note that this section is in reverse chronological order

2023: On 2023-03-13, the BVR EXO2 was replaced with the original FCR one, which had been sent back for factory calibration and maintenance. The DO sensors were calibrated in 100 percent air saturation (DO Gain 1.09). On 2020-07-07, the EXO2 was disconnected and used for surface sampling while collecting data with an ADCP. On 2023-08-07, the wiper was replaced with one from BVR (SN: 19G104137) because it could not complete a full wipe. On 2023-10-03, the program was changed to wipe the sensors every 52 minutes (as opposed to every 5 minutes) to extend the life of the wiper. We did not notice any fouling or unusually high values after this change was implemented. On 2020-12-12, the DO sensor was calibrated with 100 percent air saturation (DO Gain 1.04).

2022: On 2022-03-17, 2022-06-27, and 2022-12-15, the dissolved oxygen sensor was calibrated. The dissolved oxygen sensor was calibrated with a one-point 100 percent air saturation for 2022-03 and 2022-06 (DO Gain 1.10) with a two-point calibration in December (DO Gain 1.23). A turbidity sensor was added on 2022-05-02. See section Instruments, manual, and serial numbers for more information. On 2022-12-12, the EXO2 sonde from FCR was removed to be sent in for calibration and replaced with the EXO2 sonde from BVR.

2021: On 2021-03-22, the dissolved oxygen sensor and depth sensor were calibrated. The dissolved oxygen sensor was calibrated with a one-point 100 percent air saturation. On 2020-05-16, the fluorescent dissolved organic matter (fDOM) sensor was calibrated with a one-point calibration in DI water or a zero-point calibration. The chlorophyll sensor was checked and cleaned with DI water but was not calibrated. Due to a bad calibration of the fDOM sensor it was recalibrated on 2021-05-26 and all data were set to NA during that time. On 2021-06-15, a one-point 100 percent air saturation calibration was done on the dissolved oxygen sensor. On 2021-08-16 a two-point calibration was done on the dissolved oxygen sensor with 100 percent air saturation and a 0 percent calibration. On 2021-12-13 the EXO was brought in the lab for a deep clean, o-ring maintenance, and zero-point calibration check of chlorophyll and fDOM and redeployed the next day.

2020: The YSI EXO2 sonde was removed from the reservoir on 2020-12-02 for manufacturer cleaning, maintenance, and calibration. It was re-deployed in the reservoir on 2020-12-27. On 2020-08-07, the YSI EXO2 (1.6 m) Optical Dissolved Oxygen Sensor Cap (Serial No. 20E101629) was replaced, and the dissolved oxygen sensor was calibrated on 2020-08-17 using a one-point 100 percent air saturation calibration. The EXO2 1.6 m dissolved oxygen sensor was recalibrated on 2020-09-15, 2020-10-19, and 2020-12-27 using a one-point 100 percent air saturation calibration.

#################################################################

CALIBRATION INFORMATION-

Instruments, manual, and serial numbers used 2018 - 2023: Multiple sensors and instruments were added over time. Below we note serial numbers of sensors with accompanying depths and provide links to the accompanying instrument manuals.

NexSens T-Node FR Thermistors (2018-07 - current) https://www.fondriest.com/pdf/nexsens_t-node_fr_manual.pdf Serial No. 3718; Depth 0.1m (2018-07 - 2020-10-19) Serial No. 3741; Depth 0.1m (2020-10-20 to 2020-10-22) Serial No. 3903; Depth 0.1m (2020-10-22 - current) Serial No. 3724; Depth 1m (2018-07 - 2021-01-07) Serial No. 3966; Depth 1m (2021-02-26 - current) Serial No. 3741; Depth 2m (2018-07 - 2020-10-20; 2020-10-22 - current) Serial No. 3746; Depth 3m Serial No. 3747; Depth 4m (2018-07 - 2021-01-07) Serial No. 4013; Depth 4m (2021-12-26 - current) Serial No. 3751; Depth 5m Serial No. 3786; Depth 6m Serial No. 3823; Depth 7m Serial No. 3851; Depth 8m Serial No. 3857; Depth 9m

In-Situ RDO Pro-X Dissolved Oxygen Sensor (2018-07 - current) https://in-situ.com/wp-content/uploads/2014/11/RDO_PRO-X_Manual.pdf Serial No. 584491; Depth 5m Calibration from 2018-07-05 - 2018-12-19; slope = 1.0361, offset = 0.00 Calibration from 2020-08-17 - 2020-09-15; slope = 1.1074, offset = 0.00. Calibration from 2020-10-19 - 2021-08-31; slope = 1.1447, offset = 0.00. Calibration from 2022-03-17 2022-07-25; slope = 1.1066, offset = 0.00. Calibration from 2022-07-25 - 2023-12-12; slope=1.0923, offset=0. Calibration from 2023-12-12 - current; solpe = 1.0866; offset=0.

Serial No. 584488; Depth 9m (2018-07 - current) Calibration from 2018-07-05 - 2018-08-20; slope = 1.0743, offset = 0.00. Calibration from 2018-08-20 - 2018-12-19; slope = 1.0000, offset = 0.00. Calibration from 2020-08-17 - 2020-09-15; slope = 1.1656, offset = 0.00. Calibration from 2020-09-15 - 2020-10-19; slope = 1.0916, offset = 0.00. Calibration from 2020-10-19 - 2021-08-17; slope = 1.1221; offset = 0.00. Calibration from August 17, 2021 to March 17, 2022; slope = 1.1534; offset = 0.0054 Calibration from March 17, 2022 to July 25, 2022; slope = 1.1911; offset = 0.0056 Calibration from July 25, 2022 to December 13,2023; slope=1.1484; offset = 0.0054. Calibration from 2023-12-12 - current; slope=1.1607; offset = 0.0055.

Campbell Scientific Stainless-Steel Pressure Transducer CS451 (May 2020-current) https://s.campbellsci.com/documents/us/manuals/cs451-cs456.pdf Serial No. 29010799

YSI EXO2 Sonde (2018-08 - current) https://www.ysi.com/File%20Library/Documents/Manuals/EXO-User-Manual-Web.pdf EXO2 body Serial No. 18D103367: In 2021-12: Replaced power-communication circuit board due to issues at final testing, depth sensor passed

Wiped Conductivity/Temperature Sensor Serial No. 18C102992 Temperature: Calibration on 2021-12 Temperature reads 20.78 °C in a 20.70 °C bath with a cell constant of 0.47 Calibrated in 2023-01; Temperature reads 21.181 °C in a 21.182 °C bath. Conductivity: Calibration on 2022-12-15; pre: 98.6 uS/cm; 100.0 uS/cm; cell constant=0.48 Calibrated in 2023-01; to 10.00 mS

Central Wiper for Conductivity/Temperature Sensor Serial No. 18D101236(2018-08 - 2023-08), Serial No. 19G104137 (2023-08 - current)

Total Algae Sensor Serial No. 18D102222 Calibration in 2021-12: Chlorophyll-a: Probe reads 14.73 RFU in 16.4 standard-calibrated to standard. Probe reads 58.65 µg/L in 66 standard-calibrated to standard. Phycocyanin: Probe reads 13.36 RFU in 16 standard-calibrated. Probe reads 13.37 µg/L in 16 standard-calibrated to standard Calibration on 2022-12-15; pre: -0.51 RFU, pre: 12.58 RFU; post: 0.00 RFU, post: 16.00 RFU Calibration in 2023-01: Chlorophyll-a: Probe reads: 14.26 RFU in 16.4 RFU standard - calibrated probe reads: 57.40 µg/L in 66 µg/L standard Calibrated Phycocyanin:Probe reads: 13.88 RFU in 16 RFU standard - Calibrated probe reads: 13.90 µg/L IN 16 µg/L standard - calibrated

fDOM Sensor Serial No. 18C100625 Calibration on 2021-05-16; pre: 1.38 RFU, 4.68 QSU; post: 0.00 RFU, -0.01 QSU - that was a bad calibration and flaged with a 2. Calibration on 2021-05-26; pre: 0.34 RFU, 1.13 QSU; post: 0.00 RFU, 0.00 QSU Calibration in 2021-12: Probe reads 275.69 uncalibrated QSU in 300 QSU standard- calibrated to 300QSU. Probe reads 92.18 uncalibrated RFU in 100 RFU standard- calibrated to 100 RFU Calibration on 2022-12-27; pre: 0.46 RFU, 0.57 QSU; post: 0.00 RFU, 0.00 QSU Calibration on 2022-15-12; pre: 0.27 RFU, 0.07 QSU; post: 0.00RFU, 0.00 QSU Calibration in 2023-01: probe reads: 118.39 RFU in 100 RFU solution. Calibrates to 100. Probe reads: 352.94 QSU in 300 QSU Ssolution. Calibrates to 300

Turbidity Sensor Serial No. 19H101144-added on 2022-05-02 Calibration in 2023-01: Probe reads: 121.35 FNU in 124 FNU standard. Calibrated to 124 FNU

Pressure Transducer Serial No. 17K100864

Dissolved Oxygen Sensor Serial No. 18D101168 YSI EXO Optical Dissolved Oxygen Sensor Cap Serial No. 18C105373 (2018-08 2020-08-07) YSI EXO Optical Dissolved Oxygen Sensor Cap Serial No. 20E101629 (2020-08-07 - 2021-12) YSI EXO Optical Dissolved Oxygen Sensor Cap Serial No. 23A103725 (2023-01 - current) ; Calibration from 2020-08-17 - 2020-09-15; DO Gain=1.13 Calibration from 2020-09-15 - 2020-10-19; DO Gain=1.11 Calibration from 2020-10-19 - 2020-12-02; DO Gain=1.12 Calibration from 2020-12-27 - 2020-12-31; DO Gain=1.10 Calibration from 2021-03-22 - 2021-06-15; DO Gain=1.10; pre = 91.1% sat; post = 100.1% sat Calibration from 2021-06-15 - 2021-08-16; DO Gain=1.13 Calibration from 2021-08-16 - 2021-12; DO Gain=1.24 Calibration from 2021-12 - 2022-03-17; DO Gain= 1.10 Calibration from 2022-03-17 - 2022-06-27; DO Gain=1.10; pre = 91.0% sat; post = 99.9% sat Calibration from 2022-06-27 - 2022-12-14; DO Gain=1.10; pre = 91.1% sat; post = 100% sat Calibration from 2022-12-14 - current; DO Gain = 1.23; pre = 1.7%; post = -0.2% sat; pre = 91.3% sat; post = 101.1% sat Calibration from 2023-03-13 - 2023-12-12; DO Gain= 1.09; pre = 92.2%; post = 98.7% Calibration from 2023-12-12 - current; DO Gain= 1.04; pre = 97.5%; post: 101.4%

##############################################################################

OXYGENATION INFORMATION

Multiple whole-ecosystem experiments have been conducted at Falling Creek Reservoir, including intermittent operation of hypolimnetic oxygenation (HOx) and pulsed epilimnetic mixing (EM) engineering systems. We encourage you to contact the lead author of the data package for more information.

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@edirepository.org

Web Address:

https://edirepository.org

Id:

https://ror.org/0330j0z60

Creators:

Individual:

Cayelan C. Carey

Organization:

Virginia Tech

Email Address:

cayelan@vt.edu

Id:

https://orcid.org/0000-0001-8835-4476

Individual:

Adrienne Breef-Pilz

Organization:

Virginia Tech

Email Address:

abreefpilz@vt.edu

Id:

https://orcid.org/0000-0002-6759-0063

Individual:

Vahid Daneshmand

Organization:

University of Florida

Email Address:

vdaneshmand@ufl.edu

Id:

https://orcid.org/0000-0003-4181-1806

Individual:

Austin D. Delany

Organization:

Virginia Tech

Email Address:

addelany@vt.edu

Id:

https://orcid.org/0000-0002-2266-6300

Individual:

R. Quinn Thomas

Organization:

Virginia Tech

Email Address:

rqthomas@vt.edu

Id:

https://orcid.org/0000-0003-1282-7825

Contacts:

Individual:

Cayelan C. Carey

Organization:

Virginia Tech

Email Address:

cayelan@vt.edu

Id:

https://orcid.org/0000-0001-8835-4476

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

2018-07-05

End:

2023-12-31

Geographic Region:

Description:

Falling Creek Reservoir is located in Vinton, Virginia, USA

Bounding Coordinates:

Northern:	37.309589	Southern:	37.30266
Western:	-79.839249	Eastern:	-79.836009

Project

Parent Project Information:

Title:

No project title to report

Personnel:

Individual:

Cayelan C. Carey

Organization:

Virginia Tech

Email Address:

cayelan@vt.edu

Id:

https://orcid.org/0000-0001-8835-4476

Role:

Principal Investigator

Funding:

Western Virginia Water Authority

Related Project:

Title:

Collaborative Research: Consequences of changing oxygen availability for carbon cycling in freshwater ecosystems

Personnel:

Individual:

Cayelan C. Carey

Organization:

Virginia Tech

Email Address:

cayelan@vt.edu

Id:

https://orcid.org/0000-0001-8835-4476

Role:

Principal Investigator

Funding:

National Science Foundation 1753639

Related Project:

Title:

Collaborative Research: CIBR: Cyberinfrastructure Enabling End-to-End Workflows for Aquatic Ecosystem Forecasting

Personnel:

Individual:

Cayelan C. Carey

Organization:

Virginia Tech

Email Address:

cayelan@vt.edu

Id:

https://orcid.org/0000-0001-8835-4476

Role:

Principal Investigator

Funding:

National Science Foundation 1933016

Related Project:

Title:

LTREB: Integrating real-time open data pipelines and forecasting to quantify ecosystem predictability at day to decadal scales

Personnel:

Individual:

Cayelan C. Carey

Organization:

Virginia Tech

Email Address:

cayelan@vt.edu

Id:

https://orcid.org/0000-0001-8835-4476

Role:

Principal Investigator

Funding:

National Science Foundation 2327030

Related Project:

Title:

Collaborative Research: URoL:ASC: Applying rules of life to forecast emergent behavior of phytoplankton and advance water quality management

Personnel:

Individual:

Cayelan C. Carey

Organization:

Virginia Tech

Email Address:

cayelan@vt.edu

Id:

https://orcid.org/0000-0001-8835-4476

Role:

Principal Investigator

Funding:

National Science Foundation 2318861

Related Project:

Title:

Collaborative Research: CIBR: Cyberinfrastructure Enabling End-to-End Workflows for Aquatic Ecosystem Forecasting

Personnel:

Individual:

Renato J. Figueiredo

Organization:

University of Florida

Email Address:

renato@acis.ufl.edu

Id:

https://orcid.org/0000-0001-9841-6060

Role:

Principal Investigator

Funding:

National Science Foundation 1933102

Maintenance

Maintenance:

Description:	ongoing
Frequency:

Additional Info

Additional Information:

Contributions to the 2023 revision: CCC is the PI of the project and has overseen the FCR water quality monitoring program from 2013-present. ABP is the point person for the dataset and led sensor maintenance and data management. RQT initiated the new data workflow in 2023, which was implemented by RQT, VD, ABP, and ADD. RQT, ADD, and ABP wrote QAQC workflow scripts, and ABP and VD maintained sensor connectivity.

Acknowledgements: This data package has been iteratively updated over time and builds on the many historical contributions of co-authors listed in previous revisions. We thank the Western Virginia Water Authority for providing access to these sites, the Reservoir Group for contributing to fieldwork, and Katie Hoffman, Freya Olsson, and Mary Lofton for helpful reviews of this data package.

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'unitList'
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'microSiemensPerCentimeter'
        |     |     |     |  \___attribute 'multiplierToSI' = '1.00E-04'
        |     |     |     |  \___attribute 'name' = 'microSiemensPerCentimeter'
        |     |     |     |  \___attribute 'parentSI' = 'siemenPerMeter'
        |     |     |     |  \___attribute 'unitType' = 'conductance'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'microSiemenPerCentimeter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'RelativeFluorescenceUnits'
        |     |     |     |  \___attribute 'multiplierToSI' = ''
        |     |     |     |  \___attribute 'name' = 'RelativeFluorescenceUnits'
        |     |     |     |  \___attribute 'parentSI' = ''
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'measurement of the relative amount of fluorescence excitation detected in response to particular wavelength of light'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'QuinineSulfateUnits'
        |     |     |     |  \___attribute 'multiplierToSI' = ''
        |     |     |     |  \___attribute 'name' = 'QuinineSulfateUnits'
        |     |     |     |  \___attribute 'parentSI' = ''
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'measurement of the relative amount of fluorescence excitation detected in response to fluorescent dissolved organic matter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'FormazinNephelometricUnits'
        |     |     |     |  \___attribute 'multiplierToSI' = ''
        |     |     |     |  \___attribute 'name' = 'FormazinNephelometricUnits'
        |     |     |     |  \___attribute 'parentSI' = ''
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'measures scattered light at 90 degrees from the incident light beam with an infrared light source according to the ISO 7027'
        |     |     |     |___text '\n            '
        |     |     |___text '\n         '
        |     |___text '\n      '
        |___text '\n   '

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'emlEditor'
        |     |     |___text '\n            '
        |     |     |___element 'app'
        |     |     |     |___text 'EMLassemblyline'
        |     |     |___text '\n            '
        |     |     |___element 'release'
        |     |     |     |___text '3.5.5'
        |     |     |___text '\n         '
        |     |___text '\n      '
        |___text '\n   '

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Data Package Metadata View Summary

Data Entities

Data Table

Data Table

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

Data Package Usage Rights

Keywords

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Info

Additional Metadata

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

+/- Data Entities

Data Table

Data Table

Non-Categorized Data Resource

Non-Categorized Data Resource

Non-Categorized Data Resource

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Info

+/- Additional Metadata

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Info

Additional Metadata

Additional Metadata