Data Package Metadata View Summary

Time series of high-frequency sensors measuring water temperature and dissolved oxygen at discrete depths in Falling Creek Reservoir, Virginia, USA in 2012-2018

General Information

Data Package:

Local Identifier:

edi.1005.4

Title:

Time series of high-frequency sensors measuring water temperature and dissolved oxygen at discrete depths in Falling Creek Reservoir, Virginia, USA in 2012-2018

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

We measured water temperature and dissolved oxygen at multiple depths in Falling Creek Reservoir (Vinton, Virginia, USA) with high-frequency (10 to 15-minute) sensors for different durations during 2012 to 2018. Falling Creek Reservoir is owned and managed by the Western Virginia Water Authority as a primary drinking water source for Roanoke, Virginia. All measurements were collected at discrete depths at the deepest site of the reservoir adjacent to the dam. The sensors consisted of: 1) InsiteIG dissolved oxygen and water temperature sensors (Model 20 dissolved oxygen sensor) at both 1 m (November 2015 - December 2018) and 8 m (September 2012 - December 2018) and 2) HOBO (HOBO Pendant Temperature/Light 64K Data Logger) water temperature loggers deployed at 1, 2, 3, 4, 5, 6, 7, 8, and 9.3 m depths (September 2015 - January 2018).

Publication Date:

2023-01-23

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2012-09-28

End:

2018-12-31

People and Organizations
Contact:	Carey, Cayelan C. (Virginia Tech) [ email ]
Creator:	Carey, Cayelan C. (Virginia Tech)
Creator:	Howard, Dexter W. (Virginia Tech)
Creator:	Gantzer, Paul A. (Gantzer Water Resources Engineering)
Creator:	McClure, Ryan P. (Virginia Tech)
Creator:	Gerling, Alexandra B. (Virginia Tech)
Creator:	Lofton, Mary E. (Virginia Tech)
Creator:	Breef-Pilz, Adrienne (Virginia Tech)
Creator:	WVWA(Western Virginia Water Authority)

Data Entities
Data Table Name:	FCR_DOsondes_2012_2018.csv
Description:	FCR InsiteIG DO sondes
Data Table Name:	FCR_hobos_2015_2018.csv
Description:	FCR HOBO data loggers
Other Name:	WVWA_DO_QAQC_for_EDI.R
Description:	This R script conducts QAQC and data aggregation for the DO sonde sensor data

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1005/4/25b7a46649a57545ff6c34d8d474464f
Name:	FCR_DOsondes_2012_2018.csv
Description:	FCR InsiteIG DO sondes
Number of Records:	170645
Number of Columns:	9

Table Structure

Object Name:

FCR_DOsondes_2012_2018.csv

Size:

9738851 bytes

Authentication:

0064a32086d5c0fd7db33e1518bfee2a 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

DateTime

Temp_C_1m

DO_mgL_1m

Temp_C_8m

DO_mgL_8m

Flag_1m

Flag_8m

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 1 m measured by the DO sonde

Dissolved oxygen at 1 m measured by the DO sonde

water temperature at 8 m measured by the DO sonde

Dissolved oxygen at 8 m measured by the DO sonde

Data flag for (Temp_C_1m and DO_mgL_1m)

Data flag for (Temp_C_8m and DO_mgL_8m)

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	FCR = 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	0.75
Max	29.89

Unit	milligramsPerLiter
Type	real
Min	2.75
Max	14.19

Unit	celsius
Type	real
Min	2.15
Max	19.449999

Unit	milligramsPerLiter
Type	real
Min	1.23
Max	14.839998

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
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	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
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	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

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1005/4/461a43f5bc61a213365defb035962289
Name:	FCR_hobos_2015_2018.csv
Description:	FCR HOBO data loggers
Number of Records:	94125
Number of Columns:	21

Table Structure

Object Name:

FCR_hobos_2015_2018.csv

Size:

10393029 bytes

Authentication:

3f41c9a5a25206e1b99eef94265fa93b 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

DateTime

wtr_1

wtr_2

wtr_3

wtr_4

wtr_5

wtr_6

wtr_7

wtr_8

wtr_9.3

Flag_wtr_1

Flag_wtr_2

Flag_wtr_3

Flag_wtr_4

Flag_wtr_5

Flag_wtr_6

Flag_wtr_7

Flag_wtr_8

Flag_wtr_9.3

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 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 9.3 meter depth as measured by the thermistor

Data flag for wtr_1

Data flag for wtr_2

Data flag for wtr_3

Data flag for wtr_4

Data flag for wtr_5

Data flag for wtr_6

Data flag for wtr_7

Data flag for wtr_8

Data flag for wtr_9.3

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	FCR = 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	1.33
Max	30.457

Unit	celsius
Type	real
Min	1.763888889
Max	29.853

Unit	celsius
Type	real
Min	1.872222222
Max	28.258

Unit	celsius
Type	real
Min	1.872
Max	25.02777778

Unit	celsius
Type	real
Min	2.517
Max	18.711

Unit	celsius
Type	real
Min	2.088
Max	21.76

Unit	celsius
Type	real
Min	2.517
Max	19.56722222

Unit	celsius
Type	real
Min	2.624
Max	19.18722222

Unit	celsius
Type	real
Min	2.73
Max	19.28222222

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
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	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
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	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
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	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
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	7
Definition	missing data
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	no flag
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

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

WVWA_DO_QAQC_for_EDI.R

Entity Type:

unknown

Description:

This R script conducts QAQC and data aggregation for the DO sonde sensor data

Physical Structure Description:

Object Name:

WVWA_DO_QAQC_for_EDI.R

Size:

10309 bytes

Authentication:

a91e01e94ed3aec18d2369d9c96f2e1a Calculated By MD5

Externally Defined Format:

Format Name:

text/plain

Data:

https://pasta-s.lternet.edu/package/data/eml/edi/1005/4/ac3fec4b59eb811ec31923379b861338

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, Western Virginia Water Authority, Falling Creek Reservoir
lter controlled vocabulary	lakes, water quality, water temperature, dissolved oxygen, physical properties
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:

Multiple sensors were deployed at Falling Creek Reservoir during the monitoring period.

Dissolved Oxygen Sensors in data file FCR_DOsondes_2012_2018.csv

First, dissolved oxygen and water temperature was measured every 15 minutes to 1 hour at 1 m and 8 m depths at Falling Creek Reservoir’s (FCR) deepest site (site 50; latitude: 37.303, longitude -79.837) near the dam using Insite Instrumentation Group Model 20 dissolved oxygen sensors (InsiteIG, Slidell, LA, USA; Manufacturer's specification sheet: https://www.insiteig.com/20/20pdfs/Model-20-Data-Sheet.pdf). The 8 m sensor was deployed on 28 September 2012 and the 1 m sensor was deployed on 9 November 2015. Both sensors were used to collect data through 31 December 2018.

QAQC and Maintenance for Dissolved Oxygen Sensors in data file FCR_DOsondes_2012_2018.csv

QAQC was applied to these two DO sonde data for values when sensors were out of the water column for cleaning and for extreme outliers. The first QAQC step was identifying missing observations in the data set which are NAs and assigned a Flag of 7 (missing observations, set to NA). Extreme outliers were identified via three separate steps: the first was identifying times when sensor malfunctions had clearly occurred and were identified by DO mg/L values over 1000. Both DO and temperature measurements for these intervals were set to NA and assigned a flag of 2 (i.e., a negative or outlier value). After this first step, a second step of QAQC was applied in which outliers were identified as values that were >=2 standard deviations above or below the previous observation and the subsequent observation. These values were also flagged with a 2. The third QAQC step was identifying times where sensors were out of the water column for cleaning or maintenance. These data points were set to NA and assigned a flag of 2.

HOBO Temperature Pendant profiles in data file FCR_hobos_2015_2018.csv

Water temperature measurements were collected every 10 to 15 minutes at approximately one-meter intervals from 1 m to 9.3 m depth using HOBO temperature pendants (HOBO Pendant Temperature/Light Data Logger, Onset, Bourne, MA, USA) at Falling Creek Reservoir’s deepest site (site 50; latitude: 37.303, longitude -79.837). HOBO temperature pendant manual from manufacturer can be found here: https://www.onsetcomp.com/sites/default/files/resources-documents/9556-M%20UA-002%20Manual.pdf. The depth of the temperature loggers varied slightly year to year for different research project needs but included these depths: 1, 2, 3, 4, 5, 6, 7, 8, and 9.3 m. Temperature loggers were initially deployed on 28 September 2015 and removed on 15 January 2018. The dataset contains flag columns to denote when sensors were not deployed, a flag of 0 equals no flag, and a flag of 7 means there is data missing from that time point due to sensors not being deployed at that depth.

Falling Creek Reservoir Whole Ecosystem Experiments

Throughout the monitoring period in this data set numerous whole ecosystem experiments were conducted in FCR. Experiments were conducted using a hypolimnetic oxygenation system (HOx) and a pulsed epilimnetic mixing system (Carey et al. 2022). Details on the HOx system can be found in Gerling et al. 2014 and on the epilimnetic mixing system in Lofton et al. 2019. Information on HOx operation schedule can be found in additional information section of Carey et al. 2022. Information on epilimnetic mixing system operation schedule can be found in Lofton et al. 2022.

References: Carey, C.C., R.Q. Thomas, and P.C. Hanson. 2022. General Lake Model-Aquatic EcoDynamics model parameter set for Falling Creek Reservoir, Vinton, Virginia, USA 2013-2019 ver 1. Environmental Data Initiative. https://doi.org/10.6073/pasta/9f7d037d9a133076a0a0d123941c6396 Gerling, A.B., Z.W. Munger, J.P. Doubek, K.D. Hamre, P.A. Gantzer, J.C. Little, and C.C. Carey. 2016. Whole-catchment manipulations of internal and external loading reveal the sensitivity of a century-old reservoir to hypoxia. Ecosystems. 19:555-571. DOI: 10.1007/s10021-015-9951-0 Lofton M.E., McClure R.P., Chen S., Little J.C., Carey C.C. 2019. Whole-ecosystem experiments reveal varying responses of phytoplankton functional groups to epilimnetic mixing in a eutrophic reservoir. Water 11:222. DOI: 10.3390/w11020222 Lofton M.E., Howard D.W., McClure R.P., Wander H.L., Woelmer W.M., Hounshell A.G., Lewis A.S.L., Carey C.C. 2022. Experimental thermocline deepening alters vertical distribution and community structure of phytoplankton in a 4‐year whole‐reservoir manipulation. Freshwater Biology 67:1903–24. DOI: 10.1111/fwb.13983

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:

Dexter W. Howard

Organization:

Virginia Tech

Email Address:

dwh1998@vt.edu

Id:

https://orcid.org/0000-0002-6118-2149

Individual:

Paul A. Gantzer

Organization:

Gantzer Water Resources Engineering

Email Address:

Paul.Gantzer@gmail.com

Individual:

Ryan P. McClure

Organization:

Virginia Tech

Email Address:

ryan333@vt.edu

Id:

https://orcid.org/0000-0001-6370-3852

Individual:

Alexandra B. Gerling

Organization:

Virginia Tech

Email Address:

alexg13@vt.edu

Id:

https://orcid.org/0000-0001-5280-6709

Individual:

Mary E. Lofton

Organization:

Virginia Tech

Email Address:

melofton@vt.edu

Id:

https://orcid.org/0000-0003-3270-1330

Individual:

Adrienne Breef-Pilz

Organization:

Virginia Tech

Email Address:

abreefpilz@vt.edu

Id:

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

Individual:

WVWA

Organization:

Western Virginia Water Authority

Email Address:

jamie.morris@westernvawater.org

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:

2012-09-28

End:

2018-12-31

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:

Dynamics of coupled P-Fe-Mn cycling in drinking water reservoirs and implications for water quality

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:

Institute of Critical Technology and Applied Science:

Related Project:

Title:

SCC-IRG Track 2: Resilient Water Systems: Integrating Environmental Sensor Networks and Real-Time Forecasting to Adaptively Manage Drinking Water Quality and Build Social Trust

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 1737424

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:

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:	completed
Frequency:

Additional Info


Additional Information:
	Authorship Contribution Statement: CCC developed and led the reservoir monitoring program with the WVWA. DWH led data collation, QAQC, and publishing of these data. PAG and CCC led the deployment of the oxygen and temperature Insite sensors. RPM led the deployment of the HOBO temperature loggers. ABG, MEL, RPM, and ABP led field sensor maintenance and data management.

Other Metadata

Additional Metadata

additionalMetadata
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        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'emlEditor'
        |     |     |___text '\n        '
        |     |     |___element 'app'
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        |     |     |     |___text '3.5.5'
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Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

Time series of high-frequency sensors measuring water temperature and dissolved oxygen at discrete depths in Falling Creek Reservoir, Virginia, USA in 2012-2018

Data Entities

Data Table

Data Table

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

Recently Added

Recently Updated

Data Package Metadata View Summary

Time series of high-frequency sensors measuring water temperature and dissolved oxygen at discrete depths in Falling Creek Reservoir, Virginia, USA in 2012-2018

+/- Data Entities

Data Table

Data Table

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

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Info

Additional Metadata