Data Package Metadata View Summary

Filtered chlorophyll a time series for Beaverdam Reservoir, Carvins Cove Reservoir, Claytor Lake, Falling Creek Reservoir, Gatewood Reservoir, Smith Mountain Lake, Spring Hollow Reservoir in southwestern Virginia, and Lake Sunapee in Sunapee, New Hampshire, USA during 2014-2023

General Information

Data Package:

Local Identifier:

edi.52.21

Title:

Filtered chlorophyll a time series for Beaverdam Reservoir, Carvins Cove Reservoir, Claytor Lake, Falling Creek Reservoir, Gatewood Reservoir, Smith Mountain Lake, Spring Hollow Reservoir in southwestern Virginia, and Lake Sunapee in Sunapee, New Hampshire, USA during 2014-2023

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Water column chlorophyll a was analyzed from 2014 to 2023 in seven freshwater reservoirs in southwestern Virginia (VA), USA, and one freshwater lake in central New Hampshire (NH). These waterbodies are: Beaverdam Reservoir (Vinton, VA), Carvins Cove Reservoir (Roanoke, VA), Claytor Lake (Pulaski, VA), Falling Creek Reservoir (Vinton, VA), Gatewood Reservoir (Pulaski, VA), Smith Mountain Lake (Bedford, VA), Spring Hollow Reservoir (Salem, VA), and Lake Sunapee (Sunapee, NH). Beaverdam, Carvins Cove, Falling Creek, and Spring Hollow Reservoirs are owned and operated by the Western Virginia Water Authority as primary or secondary drinking water sources for Roanoke, Virginia; Gatewood Reservoir is a drinking water source for the Town of Pulaski, Virginia; and Smith Mountain Lake is jointly treated by the Bedford Regional Water Authority and the Western Virginia Water Authority as a drinking water source for Franklin County, Virginia. Claytor Lake is utilized for hydroelectric power generation by the Appalachian Power Company. Lake Sunapee is a glacially-formed lake known for its oligotrophic water quality. The dataset consists of depth profiles of chlorophyll a samples generally measured at the deepest site of each reservoir adjacent to the dam. The water column samples were collected approximately fortnightly from March-April and weekly from May-October at Falling Creek Reservoir and Beaverdam Reservoir, approximately fortnightly from May-August in most years at Carvins Cove Reservoir, approximately fortnightly from May-August in Gatewood and Spring Hollow Reservoirs from 2014-2016, approximately fortnightly from May-August of 2014 in Smith Mountain Lake, sporadically from May-August of 2014 in Claytor Lake, and sporadically from June-August of 2021 and 2022 in Lake Sunapee. Additional chlorophyll a samples were collected at multiple upstream and inflow sites along tributaries to Beaverdam and Falling Creek Reservoirs in summer 2019. The water samples collected were analyzed for both phaeophytin and chlorophyll a to quantify and correct for degraded phytoplankton within the sample.

Publication Date:

2024-01-11

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2014-04-18

End:

2023-12-04

People and Organizations
Contact:	Carey, Cayelan C. (Virginia Tech) [ email ]
Creator:	Carey, Cayelan C. (Virginia Tech)
Creator:	Breef-Pilz, Adrienne (Virginia Tech)
Creator:	Hoffman, Kathryn K. (Virginia Tech)
Creator:	Niederlehner, Barbara R. (Virginia Tech)
Creator:	Haynie, George (Virginia Tech)
Creator:	Keverline, Ryan (Virginia Tech)
Creator:	Kricheldorf, Michael (Virginia Tech)
Creator:	Tipper, Evelyn (Virginia Tech)

Data Entities
Data Table Name:	FiltChla_2014_2023
Description:	Filtered chlorophyll a data at multiple sites
Data Table Name:	site_descriptions
Description:	Sampling site descriptions with latitude and longitude
Other Name:	filt_chla_qaqc_2023
Description:	Script used to collate and flag data for publication
Other Name:	FiltChla_inspection_2014_2023
Description:	Markdown file used to visualize data for QA/QC
Other Name:	Filt_Chla_Maintenance_Log
Description:	Maintenance Log through 2023

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/52/21/4d92727343445ad28046d57ac852b45f
Name:	FiltChla_2014_2023
Description:	Filtered chlorophyll a data at multiple sites
Number of Records:	1014
Number of Columns:	8

Table Structure

Object Name:

FiltChla_2014_2023.csv

Size:

47645 bytes

Authentication:

fc73b9098f7cfa773a9ccdc19f7a0d84 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

Depth_m

Chla_ugL

Pheo_ugL

Flag_Chla_ugL

Flag_Pheo_ugL

Definition:

Three-letter code corresponding to sampled reservoir; BVR=Beaverdam Reservoir, CCR= Carvins Cove Reservoir, CLY = Claytor Lake, Reservoir, FCR=Falling Creek Reservoir, GWR=Gatewood Reservoir, SHR=Spring Hollow Reservoir, SML = Smith Mountain Lake, SNP = Lake Sunapee categorical

Sampling site within each reservoir

Date of sampling. All data were collected in the eastern time zone of the U.S.A., with Eastern Standard Time Observed

Water depth where the sample was collected

Chlorophyll a concentration

Phaeophytin concentration

Data flag for chlorophyll a; 0=Value acceptable. No flag, 1= Sample below detection, 2 = Sample not taken, 3=Duplicate check failed, 4=Pigment in extract below detection (<34 ug/L), 5=Duplicate values were averaged

Data flag for phaeophytin; 0=Value acceptable. No flag, 1= Sample below detection, 2 = Sample not taken, 3=Duplicate check failed, 4=Pigment in extract below detection (<34 ug/L), 45=Pigment in extract below detection (<34 ug/L) and duplicate values were averaged

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	BVR
Definition	Beaverdam Reservoir
Source

Code Definition

Code	CCR
Definition	Carvins Cove Reservoir
Source

Code Definition

Code	CLY
Definition	Claytor Lake Reservoir
Source

Code Definition

Code	FCR
Definition	Falling Creek Reservoir
Source

Code Definition

Code	GWR
Definition	Gatewood Reservoir
Source

Code Definition

Code	SHR
Definition	Spring Hollow Reservoir
Source

Code Definition

Code	SML
Definition	Smith Mountain Lake
Source

Code Definition

Code	SNP
Definition	Lake Sunapee
Source

Unit	dimensionless
Type	natural
Min	1
Max	200

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

Unit	meter
Type	real
Min	0.1
Max	34

Unit	microgramsPerLiter
Type	real
Min	0
Max	158

Unit	microgramsPerLiter
Type	real
Min	-5.299218286
Max	36.6

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	Value acceptable. No flag
Source

Code Definition

Code	1
Definition	Sample below detection
Source

Code Definition

Code	2
Definition	Sample not taken
Source

Code Definition

Code	3
Definition	Duplicate check failed
Source

Code Definition

Code	4
Definition	Pigment in extract below detection (<34 ug/L)
Source

Code Definition

Code	5
Definition	Duplicate values were averaged
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	Value acceptable. No flag
Source

Code Definition

Code	1
Definition	Sample below detection
Source

Code Definition

Code	2
Definition	Sample not taken
Source

Code Definition

Code	3
Definition	Duplicate check failed
Source

Code Definition

Code	4
Definition	Pigment in extract below detection (<34 ug/L)
Source

Code Definition

Code	45
Definition	Pigment in extract below detection (<34 ug/L) and duplicate values were averaged
Source

Code Definition

Code	5
Definition	Duplicate values were averaged
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

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/52/21/2130a9b1867cc4d99c2b2f111418dd09
Name:	site_descriptions
Description:	Sampling site descriptions with latitude and longitude
Number of Records:	28
Number of Columns:	5

Table Structure

Object Name:

site_descriptions.csv

Size:

4420 bytes

Authentication:

77aba38b323e7a7ec83047f01000ec01 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

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

Enumerated Domain

Code Definition

Code	BVR
Definition	Beaverdam Reservoir
Source

Code Definition

Code	CLY
Definition	Claytor Lake
Source

Code Definition

Code	CCR
Definition	Carvins Cove Reservoir
Source

Code Definition

Code	FCR
Definition	Falling Creek Reservoir
Source

Code Definition

Code	GWR
Definition	Gatewood Reservoir
Source

Code Definition

Code	SHR
Definition	Spring Hollow Reservoir
Source

Code Definition

Code	SML
Definition	Smith Mountain Lake
Source

Code Definition

Code	SNP
Definition	Lake Sunapee
Source

Unit	dimensionless
Type	natural
Min	1
Max	200

Definition

Description of sampling site

Unit	degree
Type	real
Min	37.04137
Max	43.391308

Unit	degree
Type	real
Min	-80.8632991493157
Max	-72.058973

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

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

filt_chla_qaqc_2023

Entity Type:

unknown

Description:

Script used to collate and flag data for publication

Physical Structure Description:

Object Name:

filt_chla_qaqc_2023.R

Size:

18652 bytes

Authentication:

dec910d5e80ca3547e3a4d33aa0551ed Calculated By MD5

Externally Defined Format:

Format Name:

text/plain

Data:

https://pasta-s.lternet.edu/package/data/eml/edi/52/21/46dd90b82ea5725b824f1adc263387da

Non-Categorized Data Resource

Name:

FiltChla_inspection_2014_2023

Entity Type:

unknown

Description:

Markdown file used to visualize data for QA/QC

Physical Structure Description:

Object Name:

FiltChla_inspection_2014_2023.Rmd

Size:

11522 bytes

Authentication:

d44a19146bdf524f9386d24e95feca26 Calculated By MD5

Externally Defined Format:

Format Name:

text/x-markdown

Data:

https://pasta-s.lternet.edu/package/data/eml/edi/52/21/b95b7a5fc30e7694ad642e7f0d6da486

Non-Categorized Data Resource

Name:

Filt_Chla_Maintenance_Log

Entity Type:

unknown

Description:

Maintenance Log through 2023

Physical Structure Description:

Object Name:

Filt_Chla_Maintenance_Log.csv

Size:

2535 bytes

Authentication:

04685d6b2b6e6d08899f3cff108f2742 Calculated By MD5

Externally Defined Format:

Format Name:

text/csv

Data:

https://pasta-s.lternet.edu/package/data/eml/edi/52/21/6f6d8522dbee8e8068d56a95c92aa3b9

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, filtered chlorophyll, manual chlorophyll, Beaverdam Reservoir, Carvins Cove Reservoir, Spring Hollow Reservoir, Gatewood Reservoir, Smith Mountain Lake, Claytor Lake, Lake Sunapee, Virginia Reservoirs LTREB, LTREB, Virginia Reservoirs
cuahsi controlled vocabulary	Lake, Reservoir
lter controlled vocabulary	chlorophyll, chlorophyll a, plankton, phytoplankton, algae, phaeophytin

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:

SAMPLING TIMES "Sampling occurred between the hours of 9:00 and 15:00 EST and are denoted in the DateTime column as 12:00. Since 2021, we usually only sample from 1.6 m in BVR and FCR regularly, with occasional one off sampling in CCR and SNP."

SAMPLE COLLECTION AND EQUIPMENT "Unfiltered water samples were collected at the following depths for each reservoir or lake: 0.1, 1.5, 3, 3.5, 4, 5, 6, 6.5, 6.8, 7, 7.5, 9, and 12 meters within Beaverdam Reservoir, which has a Zmax of 13 meters at full pond; 0.1, 5, 6, 12, 14, 18, 19, 20, and 21 meters within Carvins Cove Reservoir, which has a maximum depth (Zmax) of 21.3 meters at full pond; 0.1, 5, 6, 7, 30, and 34 meters within Claytor Lake; 0.1, 1, 1.6, 2, 2.8, 3.8, 4, 4.1, 4.5, 5, 6, 6.2, 7, and 9 meters within Falling Creek Reservoir, which has a Zmax of 9.3 meters at full pond; 0.1, 4, 5, 6, 8, 9, 10, 12, 13, 13.5 and 14 meters within Gatewood Reservoir, which has a Zmax of 14 meters; 0.1, 6, 7, 8, 25, 28 and 30 meters within Smith Mountain Lake; 0.1, 5, 7, 8, 14, 25, 28 and 31 meters within Spring Hollow Reservoir, which has a Zmax of >60 m; and 0.1, 1, and 9 meters within Lake Sunapee, which has a Zmax of 33 meters. A 4-L Van Dorn water sampler was used to collect samples (Wildco, Yulee, Florida, USA) which were stored in opaque 2-L high-density polyethylene bottles. Samples were refrigerated and filtered within 48 hours of collection with GF/C filters and filters were immediately frozen after filtration. Samples were generally analyzed within 4 months of collection date. "

CHEMICAL ANALYSES AND EQUIPMENT "Samples were extracted using a 96% ethanol solution at room temperature for 3-24 hours (Wasmund et al. 2006) and then analyzed by spectrophotometric analysis. To quantify the concentration of phaeophytin within the sample, the analysis adopts the acidification recommendation of Parker et al. (2016), in which 240 microliters of 0.1 N HCl was added to the sample. The sample was homogenized and left to sit for 90 seconds for samples analyzed through 2018, or 120 seconds for samples analyzed after 2019. Samples were quantified using the monochromatic spectrophotometric method for chlorophyll a after correction for the presence of pheopigments, to provide a metric of ""live"" phytoplankton at the time of collection (Lorenzen 1967). The phaeophytin concentration (a metric of ""dead"" but still fluorescing phytoplankton) is also reported. In 2014, total chlorophyll a was corrected for phaeophytin but values for phaeophytin were lost during digitization. Samples were deemed below detection based on the difference between values quantified before and after acidification. Both extraction and analysis were performed in the absence of direct light to prevent the degradation of chlorophyll a. Samples collected were not always analyzed, leading to occasional incomplete water column profiles for certain dates within the dataset. "

FLAGGED DATA "Data are flagged in the maintenance log, and flags are applied in the QAQC script." "Prior to 2022 duplicated field and method replicate values were not flagged. In 2022-current, duplicate values were averaged and flagged with 5. If the values were averaged and the pigment in the extract of the averaged sample was below detection then these columns were flagged as 45, for a flag of 4 for pigment below detection and a flag of 5 for averaged duplicate value. " "For both chlorophyll and phaeophytin: 0=Value acceptable. No flag, 1= Sample below detection, 2 = Sample not taken, 3=Duplicate check failed, 4=Pigment in extract below detection (<34 ug/L), 5=Duplicate values were averaged. For phaeophytin only: 45: Values were averaged and the pigment in the extract of the averaged sample was below detection"

"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."

REFERENCES

"Lorenzen, C.J. 1967. Determinations of chlorophyll and pheo-pigments: spectrophotometric equations. Limnol. Oceanogr. 12:343-346."

"Parker, S. P., W. B. Bowden, and M. B. Flinn. 2016. The effect of acid strength and postacidification reaction time on the determination of chlorophyll a in ethanol extracts of aquatic periphyton. Limnology and Oceanography: Methods 14:839-852."

"Wasmund, N., I. Topp, and D. Schories. 2006. Optimising the storage and extraction of chlorophyll samples. Oceanologica 48(1):125-144."

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:

Kathryn K. Hoffman

Organization:

Virginia Tech

Email Address:

kkhoffman@vt.edu

Id:

https://orcid.org/0000-0002-2063-8269

Individual:

Barbara R. Niederlehner

Organization:

Virginia Tech

Email Address:

bniederl@vt.edu

Id:

https://orcid.org/0000-0002-6933-336X

Individual:

George Haynie

Organization:

Virginia Tech

Email Address:

georgeh0919@vt.edu

Individual:

Ryan Keverline

Organization:

Virginia Tech

Email Address:

rkeverline01@vt.edu

Individual:

Michael Kricheldorf

Organization:

Virginia Tech

Email Address:

mkricheldorf@vt.edu

Individual:

Evelyn Tipper

Organization:

Virginia Tech

Email Address:

etipper@vt.edu

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:

2014-04-18

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:

Carvins Cove Reservoir is located in Roanoke, Virginia, USA

Bounding Coordinates:

Northern:	37.409127	Southern:	37.365345
Western:	-79.978642	Eastern:	-79.944052

Geographic Region:

Description:

Claytor Lake is located in Pulaski, Virginia, USA

Bounding Coordinates:

Northern:	37.086718	Southern:	36.967031
Western:	-80.74543	Eastern:	-80.576912

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

Geographic Region:

Description:

Gatewood Reservoir is located in Pulaski, Virginia, USA

Bounding Coordinates:

Northern:	37.054358	Southern:	37.03819
Western:	-80.89188	Eastern:	-80.858492

Geographic Region:

Description:

Smith Mountain Lake is located in Bedford, Franklin and Pittsylvania, Virginia, USA

Bounding Coordinates:

Northern:	37.158577	Southern:	37.002455
Western:	-79.726699	Eastern:	-79.522078

Geographic Region:

Description:

Spring Hollow Reservoir is located in Salem, Virginia, USA

Bounding Coordinates:

Northern:	37.231092	Southern:	37.217594
Western:	-80.179076	Eastern:	-80.170407

Geographic Region:

Description:

Lake Sunapee is located in Sunapee, New Hampshire, USA

Bounding Coordinates:

Northern:	43.431481	Southern:	43.321181
Western:	-72.08948	Eastern:	-72.033127

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:

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/0000-0001-8835-4477

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/0000-0001-8835-4478

Role:

Principal Investigator

Funding:

National Science Foundation 2318861

Related Project:

Title:

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

Maintenance

Maintenance:

Description:	ongoing
Frequency:

Additional Info

Additional Information:

Contributions to the 2023 revision: Contributions to the 2023 revision: CCC developed and led the reservoir monitoring program 2013-present, and oversaw data collection for these samples throughout this time. KKH, ABP, and DWH co-led sample analysis and calculations. ABP led the field monitoring program, automated the datastream, and developed the QAQC script. ABP also developed new workflows for chlorophyll calculations based on methods from BRN. BRN developed the analysis method, and trained all co-authors on analytical chemistry instruments, analyses, and QAQC best practices. RK, MK, GH, and ET contributed substantially to fieldwork, filtering samples, and digitizing handwritten logs. KKH developed the visual inspection script and led data publishing for 2023.

Acknowledgments and historical contributions: 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. We thank DWH for lab work and MEL and DWH for helpful reviews of this data package.

Other Metadata

Additional Metadata

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

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

Filtered chlorophyll a time series for Beaverdam Reservoir, Carvins Cove Reservoir, Claytor Lake, Falling Creek Reservoir, Gatewood Reservoir, Smith Mountain Lake, Spring Hollow Reservoir in southwestern Virginia, and Lake Sunapee in Sunapee, New Hampshire, USA during 2014-2023

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

Recently Added

Recently Updated

Data Package Metadata View Summary

Filtered chlorophyll a time series for Beaverdam Reservoir, Carvins Cove Reservoir, Claytor Lake, Falling Creek Reservoir, Gatewood Reservoir, Smith Mountain Lake, Spring Hollow Reservoir in southwestern Virginia, and Lake Sunapee in Sunapee, New Hampshire, USA during 2014-2023

+/- 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

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Info

Additional Metadata