Data Package Metadata View Summary

Sediment trap time series data for Beaverdam Reservoir and Falling Creek Reservoir in southwestern Virginia, USA 2018 through 2023

General Information

Data Package:

Local Identifier:

edi.1474.8

Title:

Sediment trap time series data for Beaverdam Reservoir and Falling Creek Reservoir in southwestern Virginia, USA 2018 through 2023

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Sediment traps were deployed to assess the mass and composition (lithium, sodium, magnesium, aluminum, potassium, calcium, iron, manganese, copper, strontium, barium, total organic carbon, and total nitrogen) of settling particulates in the water column of two drinking water reservoirs—Beaverdam Reservoir and Falling Creek Reservoir, both located in Vinton, Virginia, USA. Sediment traps were deployed at two depths in each reservoir to capture both epilimnetic and hypolimnetic (total) sediment flux. The particulates were collected from the traps approximately fortnightly from April to December from 2018 to 2023, then filtered, dried, and analyzed for lithium, sodium, magnesium, aluminum, potassium, calcium, iron, manganese, copper, strontium, and barium (2018 to 2023) and total organic carbon and total nitrogen (2018 to 2022, due to instrument repairs). Beaverdam and Falling Creek are owned and operated by the Western Virginia Water Authority as primary or secondary drinking water sources for Roanoke, Virginia. The sediment trap dataset consists of logs detailing the sample filtering process, the mass of dried particulates from each filter, and the raw concentration data for lithium (Li), sodium (Na), magnesium (Mg), aluminum (Al), potassium (K), calcium (Ca), iron (Fe), manganese (Mn), copper (Cu), strontium (Sr), barium (Ba), total organic carbon (TOC) and total nitrogen (TN). The final products are the calculated downward fluxes of solid Li, Na, Mg, Al, K, Ca, Fe, Mn, Cu, Sr, Ba, TOC, and TN during the aforementioned deployment periods.

Publication Date:

2024-10-02

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2018-05-21

End:

2023-12-04

People and Organizations
Contact:	Schreiber, Madeline E. (Virginia Tech) [ email ]
Creator:	Schreiber, Madeline E. (Virginia Tech)
Creator:	Wood, Cecelia E. (Virginia Tech)
Creator:	Bauer, Carly E. (Virginia Tech)
Creator:	Breef-Pilz, Adrienne (Virginia Tech)
Creator:	Haynie, George K. (Virginia Tech)
Creator:	Tipper, Evelyn M. (Virginia Tech)
Associate:	Parks, Jeffery (Virginia Tech, analytical chemist)

Data Entities
Data Table Name:	FluxSummary.csv
Description:	Summary of sediment, carbon, nitrogen, and metal fluxes
Data Table Name:	FilteringLog_EDI.csv
Description:	Sediment trap filtering log
Data Table Name:	CN_Metals_Flux_EDI.csv
Description:	Carbon, nitrogen, and metal fluxes
Data Table Name:	site_descriptions.csv
Description:	Sampling site descriptions
Other Name:	MakeEDI_FluxSummary.R
Description:	Script to summarize sediment, carbon, nitrogen, and metal fluxes
Other Name:	MakeEDI_SedTraps.R
Description:	Metals flux calculations script
Other Name:	MakeEDI_SedTraps_CN.Rmd
Description:	Carbon and nitrogen flux calculations script
Other Name:	Load_filtering_logs.R
Description:	Script to generate filtering log record for EDI
Other Name:	SedTrap_Inspection_2014_2023.Rmd
Description:	Plots metal fluxes and cumulative masses

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1474/8/b029ab132b5604606c4d730da6c25821
Name:	FluxSummary.csv
Description:	Summary of sediment, carbon, nitrogen, and metal fluxes
Number of Records:	302
Number of Columns:	31

Table Structure

Object Name:

FluxSummary.csv

Size:

93748 bytes

Authentication:

fb4a62d7264e81563958430e08f00ded Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

Date

Reservoir

Depth_m

AvgSedFlux_gm2d

TLiFlux_gm2d

TNaFlux_gm2d

TMgFlux_gm2d

TAlFlux_gm2d

TKFlux_gm2d

TCaFlux_gm2d

TFeFlux_gm2d

TMnFlux_gm2d

TCuFlux_gm2d

TSrFlux_gm2d

TBaFlux_gm2d

TOCFlux_gm2d

TNFlux_gm2d

Flag_AvgSedFlux_gm2d

Flag_TLiFlux_gm2d

Flag_TNaFlux_gm2d

Flag_TMgFlux_gm2d

Flag_TAlFlux_gm2d

Flag_TKFlux_gm2d

Flag_TCaFlux_gm2d

Flag_TFeFlux_gm2d

Flag_TMnFlux_gm2d

Flag_TCuFlux_gm2d

Flag_TSrFlux_gm2d

Flag_TBaFlux_gm2d

Flag_TOCFlux_gm2d

Flag_TNFlux_gm2d

Definition:

Date of sampling. All data were collected in the eastern time zone of the U.S.A., with daylight savings time observed

Three-letter code corresponding to sampled reservoir

Water depth where the sample was collected or sensor reading was measured

Calculated downward flux of total sediment

Calculated downward flux of total lithium

Calculated downward flux of total sodium

Calculated downward flux of total magnesium

Calculated downward flux of total aluminum

Calculated downward flux of total potassium

Calculated downward flux of total calcium

Calculated downward flux of total iron

Calculated downward flux of total manganese

Calculated downward flux of total copper

Calculated downward flux of total strontium

Calculated downward flux of total barium

Calculated downward flux of total organic carbon

Calculated downward flux of total nitrogen

Data flag for AvgSedFlux_gm2d

Data flag for TLiFlux_gm2d

Data flag for TNaFlux_gm2d

Data flag for TMgFlux_gm2d

Data flag for TAlFlux_gm2d

Data flag for TKFlux_gm2d

Data flag for TCaFlux_gm2d

Data flag for TFeFlux_gm2d

Data flag for TMnFlux_gm2d

Data flag for TCuFlux_gm2d

Data flag for TSrFlux_gm2d

Data flag for TBaFlux_gm2d

Data flag for TOCFlux_gm2d

Data flag for TNFlux_gm2d

Storage Type:

date

string

float

string

Measurement Type:

dateTime

nominal

ratio

nominal

Measurement Values Domain:

Format	YYYY-MM-DD
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	BVR
Definition	Beaverdam Reservoir
Source

Code Definition

Code	FCR
Definition	Falling Creek Reservoir
Source

Unit	meter
Type	natural
Min	4
Max	10

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.226001478611082
Max	16.0973334250996

Unit	gramPerMeterSquaredPerDay
Type	real
Min	3.20391266426766e-05
Max	0.000680126632767897

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.000809993654125904
Max	0.0455377806698

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.00110221205791615
Max	0.0377468850094465

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.00540014687637705
Max	0.41670744135222

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.00102183398853364
Max	0.0256572056926111

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.00856014170926666
Max	0.222018007327796

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.0302373150364866
Max	5.06659767455715

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.00183783334708023
Max	0.189950597288724

Unit	gramPerMeterSquaredPerDay
Type	real
Min	8.17073161068659e-06
Max	0.00539118578458798

Unit	gramPerMeterSquaredPerDay
Type	real
Min	2.44616944822289e-05
Max	0.0014532915506147

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.000278180962745494
Max	0.0292772819706927

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.0472846568879972
Max	1.80114513164065

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0.0441220329467904
Max	1.06350762302068

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Data flags are present for one or more of the variables used to calculate this value. See FilteringLog_EDI.csv or CN_Metals_Flux_EDI.csv
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Values for two replicate sediment traps averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Missing Value Code:

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1474/8/cac809ebe7e629747e685f8e44627648
Name:	FilteringLog_EDI.csv
Description:	Sediment trap filtering log
Number of Records:	2061
Number of Columns:	19

Table Structure

Object Name:

FilteringLog_EDI.csv

Size:

255056 bytes

Authentication:

3dd245038b2dd4ad88ee00ff9906e01f Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

Reservoir

Date

Site

Duration_days

Depth_m

TrapRep

TrapXSA_m2

TrapVol_L

CollectionVol_L

FilterRep

FilterVol_L

FilterMassPre_g

FilterMassPost_g

SedMass_g

SedFlux_gm2d

FilterID

Flag_CollectionVol_L

Flag_SedMass_g

Flag_Duration_days

Definition:

Three-letter code corresponding to sampled reservoir

Date of sampling. All data were collected in the eastern time zone of the U.S.A., with daylight savings time observed

Sampling site within each reservoir

Duration of deployment/ time between collection points

Water depth where the sample was collected or sensor reading was measured

Replicate number of sedimentation trap tube at a specified depth

Trap cross sectional area

Total trap volume when full

Volume collected from trap

Replicate number of filter for a specified replicate and depth

Volume of collected sample that was filtered

Mass of filter before filtering

Mass of filter after filtering

Mass of sediment on filter after filtering

Calculated downward flux of total sediment

Identification code for filter (Reservoir_Depth_TrapRep_FilterRep_Date)

Data flag for CollectionVolume (L)

Data flag for SedMass (g)

Data flag for Duration (days)

Storage Type:

string

date

float

string

Measurement Type:

nominal

dateTime

ratio

nominal

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	BVR
Definition	Beaverdam Reservoir
Source

Code Definition

Code	FCR
Definition	Falling Creek Reservoir
Source

Format	YYYY-MM-DD
Precision

Unit	dimensionless
Type	natural
Min	50
Max	50

Unit	nominalDay
Type	natural
Min	6
Max	42

Unit	meter
Type	natural
Min	4
Max	10

Unit	dimensionless
Type	natural
Min	1
Max	2

Unit	squareMeter
Type	real
Min	0.0040715
Max	0.0040715

Unit	liter
Type	real
Min	1.8
Max	1.8

Unit	liter
Type	real
Min	0.47
Max	4.52

Unit	dimensionless
Type	natural
Min	1
Max	8

Unit	liter
Type	real
Min	0.02
Max	0.99

Unit	gram
Type	real
Min	0.105
Max	0.16233

Unit	gram
Type	real
Min	0.097
Max	0.17385

Unit	gram
Type	real
Min	0
Max	0.056

Unit	gramPerMeterSquaredPerDay
Type	real
Min	0
Max	25.1043841336117

Definition

Identification code for filter (Reservoir_Depth_TrapRep_FilterRep_Date)

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Collection volume was not recorded and set to 1.7 L
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Missing value
Source

Code Definition

Code	3
Definition	Negative value; set to NA
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	No issues
Source

Code Definition

Code	2
Definition	Deployment date not recorded; inferred
Source

Missing Value Code:

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1474/8/7cc135d14d92911eb7e8f6ceb096a29d
Name:	CN_Metals_Flux_EDI.csv
Description:	Carbon, nitrogen, and metal fluxes
Number of Records:	730
Number of Columns:	67

Table Structure

Object Name:

CN_Metals_Flux_EDI.csv

Size:

475679 bytes

Authentication:

04b4a743fcda6240dbc70baed283e4c7 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Column Name:

Reservoir

Date

Site

Duration_days

Depth_m

CombinedXSA_m2

Filter1ID

Filter2ID

CombinedCollectionVol_L

CombinedFilterVol_L

CombinedSedMass_g

ICPTLi_mgL

ICPTNa_mgL

ICPTMg_mgL

ICPTAl_mgL

ICPTK_mgL

ICPTCa_mgL

ICPTFe_mgL

ICPTMn_mgL

ICPTCu_mgL

ICPTSr_mgL

ICPTBa_mgL

AcidVol_L

DilutionFactor

TLi_g

TNa_g

TMg_g

TAl_g

TK_g

TCa_g

TFe_g

TMn_g

TCu_g

TSr_g

TBa_g

TLiFlux_gm2d

TNaFlux_gm2d

TMgFlux_gm2d

TAlFlux_gm2d

TKFlux_gm2d

TCaFlux_gm2d

TFeFlux_gm2d

TMnFlux_gm2d

TCuFlux_gm2d

TSrFlux_gm2d

TBaFlux_gm2d

TOC_g

TN_g

TOCFlux_gm2d

TNFlux_gm2d

Flag_Filter2ID

Flag_CombinedCollectionVol_L

Flag_CombinedSedMass_g

Flag_TOC_g

Flag_TN_g

Flag_ICPTLi_mgL

Flag_ICPTNa_mgL

Flag_ICPTMg_mgL

Flag_ICPTAl_mgL

Flag_ICPTK_mgL

Flag_ICPTCa_mgL

Flag_ICPTFe_mgL

Flag_ICPTMn_mgL

Flag_ICPTCu_mgL

Flag_ICPTSr_mgL

Flag_ICPTBa_mgL

Flag_Duration_days

Definition:

Three-letter code corresponding to sampled reservoir

Date of sampling. All data were collected in the eastern time zone of the U.S.A., with daylight savings time observed

Sampling site within each reservoir

Duration of deployment/ time between collection points

Water depth where the sample was collected or sensor reading was measured

Combined trap cross sectional area of 1 or 2 traps, depending on how many used for digestion. See filter IDs for trap rep information

Identification code for first filter analyzed (Reservoir_Depth_TrapRep_FilterRep_Date)

Identification code for second filter analyzed (Reservoir_Depth_TrapRep_FilterRep_Date)

Total collection volume for two filters analyzed

Total volume of collected sample that was filtered for two filters analyzed

Total mass of sediment on filter after filtering for two filters analyzed

Raw total lithium concentration of diluted digestion solution

Raw total sodium concentration of diluted digestion solution

Raw total magnesium concentration of diluted digestion solution

Raw total alumunum concentration of diluted digestion solution

Raw total potassium concentration of diluted digestion solution

Raw total calcium concentration of diluted digestion solution

Raw total iron concentration of diluted digestion solution

Raw total manganese concentration of diluted digestion solution

Raw total copper concentration of diluted digestion solution

Raw total strontium concentration of diluted digestion solution

Raw total barium concentration of diluted digestion solution

Volume of acid used in digestion

Factor describing dilution of raw digestate for ICPMS analysis

Total mass of lithium in each trap (calculated)

Total mass of sodium in each trap (calculated)

Total mass of magnesium in each trap (calculated)

Total mass of aluminum in each trap (calculated)

Total mass of potassium in each trap (calculated)

Total mass of calcium in each trap (calculated)

Total mass of iron in each trap (calculated)

Total mass of manganese in each trap (calculated)

Total mass of copper in each trap (calculated)

Total mass of strontium in each trap (calculated)

Total mass of barium in each trap (calculated)

Calculated downward flux of total lithium

Calculated downward flux of total sodium

Calculated downward flux of total magnesium

Calculated downward flux of total aluminum

Calculated downward flux of total potassium

Calculated downward flux of total calcium

Calculated downward flux of total iron

Calculated downward flux of total manganese

Calculated downward flux of total copper

Calculated downward flux of total strontium

Calculated downward flux of total barium

Total organic carbon in each trap

Total nitrogen in each trap

Calculated downward flux of total organic carbon

Calculated downward flux of total nitrogen

Flag indicating when only one filter was used for a given analysis

Data flag for CombinedCollectionVol (L)

Data flag for CombinedSedMass (g)

Data flag for TOC (g)

Data flag for TN (g)

Data flag for ICPTLi (mg/L)

Data flag for ICPTNa (mg/L)

Data flag for ICPTMg (mg/L)

Data flag for ICPTAl (mg/L)

Data flag for ICPTK (mg/L)

Data flag for ICPTCa (mg/L)

Data flag for ICPTFe (mg/L)

Data flag for ICPTMn (mg/L)

Data flag for ICPTCu (mg/L)

Data flag for ICPTSr (mg/L)

Data flag for ICPTBa (mg/L)

Data flag for Duration (days)

Storage Type:

string

date

float

string

float

string

Measurement Type:

nominal

dateTime

ratio

nominal

ratio

nominal

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	BVR
Definition	Beaverdam Reservoir
Source

Code Definition

Code	FCR
Definition	Falling Creek Reservoir
Source

Format	YYYY-MM-DD
Precision

Unit	dimensionless
Type	natural
Min	50
Max	50

Unit	nominalDay
Type	natural
Min	6
Max	42

Unit	meter
Type	natural
Min	4
Max	10

Unit	squareMeter
Type	real
Min	0.0040715
Max	0.008143

Definition

Identification code for first filter analyzed (Reservoir_Depth_TrapRep_FilterRep_Date)

Definition

Identification code for second filter analyzed (Reservoir_Depth_TrapRep_FilterRep_Date)

Unit	liter
Type	real
Min	0.47
Max	4.52

Unit	liter
Type	real
Min	0.04
Max	1.9

Unit	gram
Type	real
Min	0.00199999999999998
Max	0.101

Unit	milligramPerLiter
Type	real
Min	0.00210508719179842
Max	0.0407595601507363

Unit	milligramPerLiter
Type	real
Min	0.053314370073987
Max	0.882896037613194

Unit	milligramPerLiter
Type	real
Min	0.0388662268348808
Max	3.26458351315627

Unit	milligramPerLiter
Type	real
Min	0.463920216341664
Max	20.5405511863665

Unit	milligramPerLiter
Type	real
Min	0.0790149807863834
Max	1.04088186260614

Unit	milligramPerLiter
Type	real
Min	0.523673854901886
Max	18.4762694663832

Unit	milligramPerLiter
Type	real
Min	1.74808224394256
Max	139.613036518581

Unit	milligramPerLiter
Type	real
Min	0.0452372346116647
Max	6.33546702463211

Unit	milligramPerLiter
Type	real
Min	0.000517594177703615
Max	0.184717970035048

Unit	milligramPerLiter
Type	real
Min	0.00273886455582097
Max	0.0560406749377285

Unit	milligramPerLiter
Type	real
Min	0.01343808148859
Max	0.915386093554037

Unit	liter
Type	real
Min	0.0098
Max	0.01

Unit	dimensionless
Type	natural
Min	20
Max	20

Unit	gram
Type	real
Min	1.76203689409953e-06
Max	6.50035652116583e-05

Unit	gram
Type	real
Min	5.08462782496474e-05
Max	0.00259569903595927

Unit	gram
Type	real
Min	8.02724679594486e-05
Max	0.00393073501381383

Unit	gram
Type	real
Min	0.00043912032126211
Max	0.0445216446964494

Unit	gram
Type	real
Min	5.05137263123248e-05
Max	0.00222552824434841

Unit	gram
Type	real
Min	0.000422521727752893
Max	0.0222464271547938

Unit	gram
Type	real
Min	0.00233814656080962
Max	0.484690237774273

Unit	gram
Type	real
Min	9.58031397289972e-05
Max	0.0114339741886695

Unit	gram
Type	real
Min	1.19060715702725e-06
Max	0.000329854712259508

Unit	gram
Type	real
Min	2.07859102244134e-06
Max	0.000104458740756198

Unit	gram
Type	real
Min	1.64136566753492e-05
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Unit	gram
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Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1474/8/5a1454801605a1237489e9c14d10ff2c
Name:	site_descriptions.csv
Description:	Sampling site descriptions
Number of Records:	2
Number of Columns:	5

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site_descriptions.csv

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dbc1ecdc0ff0582d2e1c5e1806e0e33e Calculated By MD5

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Field Delimiter:

Table Column Descriptions

Column Name:

Reservoir

Site

Site_description

Latitude

Longitude

Definition:

Three-letter code corresponding to sampled reservoir

Sampling site within each reservoir

Description of sampling site

Site latitude

Site longitude

Storage Type:

string

float

string

float

Measurement Type:

nominal

ratio

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

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Code Definition

Code	BVR
Definition	Beaverdam Reservoir
Source

Code Definition

Code	FCR
Definition	Falling Creek Reservoir
Source

Unit	dimensionless
Type	natural
Min	50
Max	50

Definition

Description of sampling site

Unit	degree
Type	real
Min	37.30325
Max	37.31288

Unit	degree
Type	real
Min	-79.8373
Max	-79.8159

Missing Value Code:

Code	NA
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Code	NA
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Code	NA
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Code	NA
Expl	value is missing

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

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MakeEDI_FluxSummary.R

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Script to summarize sediment, carbon, nitrogen, and metal fluxes

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MakeEDI_FluxSummary.R

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Metals flux calculations script

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MakeEDI_SedTraps_CN.Rmd

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Carbon and nitrogen flux calculations script

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MakeEDI_SedTraps_CN.Rmd

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SedTrap_Inspection_2014_2023.Rmd

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Plots metal fluxes and cumulative masses

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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	Virginia Tech, Stream Team, Carey Lab, Western Virginia Water Authority, Falling Creek Reservoir, Beaverdam Reservoir, metals, sediment trap, suspended sediment, LTREB, Virginia Reservoirs, BVR, FCR, Virginia Reservoirs LTREB
cuahsi controlled vocabulary	reservoir, total lithium, total magnesium, total aluminum, total silicon, total potassium, total calcium, total copper, total iron, total manganese, total strontium, total barium, lake
lter controlled vocabulary	lakes, carbon, nitrogen, sediments, sedimentation, particulates

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:

SAMPLE COLLECTION, SAMPLE FILTRATION, AND EQUIPMENT

We deployed sedimentation traps (KC Denmark A/S) at the deepest sites (site 50) in Falling Creek Reservoir (FCR) and Beaverdam Reservoir (BVR) to capture settling particulates within the water column. The particulates were collected from the traps approximately fortnightly from April to December from 2018 to 2023. In FCR, two sedimentation traps were deployed at 4m and 8m. Two sedimentation traps were deployed in BVR at 4m and 8m, except for 2021 when they were deployed at 5m and 10m. Each trap contained two tubes with openings of 7.2 cm in diameter. During sampling, the traps were brought to the surface and the mixture of water and particulates was poured into opaque bottles. Sampling was conducted between 9 AM and 4 PM on the date of sampling.

Samples were stored on ice upon transport to the laboratory and were subsequently stored in a refrigerator until sample processing, usually within 48 hours. Samples were processed using vacuum-filtration through pre-weighed glass microfiber filters (1.5 mm; Whatman 934-AH). The filters containing particulates were then dried at 45 C in a drying oven and the retained mass was calculated by difference from the final and starting mass of the filter. Data on volumes of sample and mass of dried particulates are included in the filtering log.

BVR has experienced fluctuations in water level throughout the data collection period, including a managed drawdown event in 2022. Sedimentation traps were deployed at the specified depth and remained at a fixed height above the sediment, regardless of water level fluctuation after the day of deployment. Known deployment dates are 19 July 18 at BVR, 15 April 19 at FCR, 08 April 19 at BVR, 24 May 21 in FCR, 12 April 22 in FCR and BVR, 12 April 23 in FCR and BVR. Please refer to the BVR catwalk dataset (Package ID: edi.725.4) for more information on water level and depth.

CHEMICAL ANALYSES AND EQUIPMENT

Metals

We determined the particulate metal flux by digesting the dried particulate matter retained on the filters and analyzing the digestion solution for Li, Na, Mg, Al, K, Ca, Fe, Mn, Cu, Sr, and Ba concentrations. In 2018 and 2019, one filter from each trap replicate was combined for digestion and analysis. From 2020 to the present, trap replicates were not combined. Two filters from within each trap replicate were digested and analyzed. The dried particulates were microwave-digested with trace metal grade nitric acid following EPA Method 3051A (United States Environmental Protection Agency, 1995). The digestate solution was diluted and we analyzed the resulting solution for Li, Na, Mg, Al, K, Ca, Fe, Mn, Cu, Sr, and Ba using ICP-MS. The relative proportion of metals in the collected sediment is calculated by multiplying the ICP concentration, corrected for dilution, by the amount of acid used in the digestion and dividing by the combined sediment mass of the two filters. The total amount of each metal in each sedimentation trap is calculated by multiplying the ICP concentration by the amount of acid used in the digestion, multiplying by the ratio of the collection volume to the volume filtered, and correcting for the dilution. The downward metal flux was calculated by dividing the total metal mass by the cross-sectional area of the sedimentation trap tubes and dividing by the deployment duration.

TOC and TN

Filters for TOC and TN analysis were run on a CN analyzer (Elementar VarioMax, Ronkonkoma, NY, USA). We used two filters for CN analysis per sampling date. The mass of TOC and TN in the collected sediment is calculated by multiplying the carbon or nitrogen percentage from the CN analyzer by the combined sediment mass of the two filters. The total amount of TOC and TN in each sedimentation trap is calculated by multiplying the CN percentage by ratio of the collection volume to the volume filtered. The downward TOC and TN flux was calculated by dividing the total TOC and TN mass by the cross-sectional area of the sedimentation trap tubes and dividing by the deployment duration.

The CN analyzer underwent repairs in 2023. Thus, there is no CN data for the 2023 season. Once the instrument is repaired, the 2023 data will be included in the following revision.

Erratum

The previous revision of this data package incorrectly calculated total masses. Please refrain from using the previous revision of this data package.

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:

Madeline E. Schreiber

Organization:

Virginia Tech

Email Address:

mschreib@vt.edu

Id:

https://orcid.org/0000-0002-1858-7730

Individual:

Cecelia E. Wood

Organization:

Virginia Tech

Email Address:

cecelia@vt.edu

Id:

https://orcid.org/0000-0003-1488-2174

Individual:

Carly E. Bauer

Organization:

Virginia Tech

Email Address:

carlyeb@vt.edu

Id:

https://orcid.org/0009-0006-5955-8932

Individual:

Adrienne Breef-Pilz

Organization:

Virginia Tech

Email Address:

abreefpilz@vt.edu

Id:

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

Individual:

George K. Haynie

Organization:

Virginia Tech

Email Address:

georgeh0919@vt.edu

Id:

https://orcid.org/0009-0003-2316-2037

Individual:

Evelyn M. Tipper

Organization:

Virginia Tech

Email Address:

etipper@vt.edu

Id:

https://orcid.org/0009-0001-7898-1957

Contacts:

Individual:

Madeline E. Schreiber

Organization:

Virginia Tech

Email Address:

mschreib@vt.edu

Id:

https://orcid.org/0000-0002-1858-7730

Associated Parties:

Individual:

Jeffery Parks

Organization:

Virginia Tech

Email Address:

jparks@vt.edu

Role:

analytical chemist

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2018-05-21

End:

2023-12-04

Geographic Region:

Description:

Beaverdam Reservoir is located in Vinton, Virginia, USA

Bounding Coordinates:

Northern:	37.322865	Southern:	37.311961
Western:	-79.824834	Eastern:	-79.813848

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:

N/A

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 N/A

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: 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:

Using a Nanoscale to Whole-Ecosystem Scale Approach to Examine the Role of Reactive Metal Hydroxide Nanoparticles in Drinking Water Reservoir

Personnel:

Individual:

Madeline E. Schreiber

Organization:

Virginia Tech

Email Address:

mschreib@vt.edu

Id:

https://orcid.org/0000-0002-1858-7730

Role:

Principal Investigator

Funding:

Virginia Tech College of Science N/A

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: 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: 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

Maintenance

Maintenance:

Description:	ongoing
Frequency:

Additional Info

Additional Information:

Author Contributions

MES has been PI for the sediment trap project since 2014 and has overseen the development of the sampling, lab protocols and data analysis protocol. CEW has led organization, sample filtration and digestion, data analysis, and QAQC from fall 2021 to fall 2023. CEW also compiled and organized data from 2016 to present and refined sampling and data analysis protocols. CEB and CEW co-led sample collection, sample filtration and digestion, data analysis, QAQC, and publishing from fall 2023 to present. ABP led the field crew, contributed significantly to sampling from 2020 to present, and assisted substantially with QAQC workflows. GKH and EMT assisted with sample collection and sample filtration.

Acknowledgments

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 Gracie Litsinger for organizing and filtering samples in summer 2023. We thank Mary E. Lofton and ABP for constructive reviews of this data package.

Other Metadata

Additional Metadata

additionalMetadata
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        |     |___element 'emlEditor'
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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

Sediment trap time series data for Beaverdam Reservoir and Falling Creek Reservoir in southwestern Virginia, USA 2018 through 2023

Data Entities

Data Table

Data Table

Data Table

Data Table

Non-Categorized Data Resource

Non-Categorized Data Resource

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

Recently Added

Recently Updated

Data Package Metadata View Summary

Sediment trap time series data for Beaverdam Reservoir and Falling Creek Reservoir in southwestern Virginia, USA 2018 through 2023

+/- Data Entities

Data Table

Data Table

Data Table

Data Table

Non-Categorized Data Resource

Non-Categorized Data Resource

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

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Info

Additional Metadata