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Time series of methane and carbon dioxide diffusive fluxes using an Ultraportable Greenhouse Gas Analyzer (UGGA) for Falling Creek Reservoir and Beaverdam Reservoir in southwestern Virginia, USA during 2018–2022

General Information
Data Package:
Local Identifier:edi.988.1
Title:Time series of methane and carbon dioxide diffusive fluxes using an Ultraportable Greenhouse Gas Analyzer (UGGA) for Falling Creek Reservoir and Beaverdam Reservoir in southwestern Virginia, USA during 2018–2022
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Diffusive fluxes of methane and carbon dioxide were measured using an Ultraportable Greenhouse Gas Analyzer (UGGA) in Falling Creek Reservoir (FCR) and Beaverdam Reservoir (BVR; Vinton, Virginia, USA). FCR and BVR are owned and operated by the Western Virginia Water Authority as drinking water sources for Roanoke, Virginia. The dataset consists of calculated diffusive fluxes of methane and carbon dioxide measured at the deepest site of the reservoir adjacent to the dam (2018–2022) and additional reservoir upstream sites in FCR (2018) and BVR (2022). Measurements were collected approximately fortnightly in FCR throughout the stratified periods of 2018–2021, while measurements from BVR were only taken in 2018 and 2022.

Publication Date:2023-01-12
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2018-05-07
End:
2021-07-05

People and Organizations
Contact:Carey, Cayelan C. (Virginia Tech) [  email ]
Creator:Carey, Cayelan C. (Virginia Tech)
Creator:Lewis, Abigail S. L. (Virginia Tech)
Creator:Breef-Pilz, Adrienne (Virginia Tech)

Data Entities
Other Name:
Raw UGGA files and code
Description:
Raw data from the Ultraportable Greenhouse Gas Analyzer and code used to translate these data into the diffusive flux rates presented in this data table
Other Name:
Data compilation and publishing script
Description:
Code used to compile and QAQC all years of UGGA data, then publish to EDI
Detailed Metadata

Data Entities

Non-Categorized Data Resource

Name:Raw UGGA files and code
Entity Type:unknown
Description:Raw data from the Ultraportable Greenhouse Gas Analyzer and code used to translate these data into the diffusive flux rates presented in this data table
Physical Structure Description:
Object Name:RawData.zip
Size:4941166 bytes
Authentication:c8ac85d18c2effb3b07aa1a3edc7f793 Calculated By MD5
Externally Defined Format:
Format Name:application/zip
Data:https://pasta-s.lternet.edu/package/data/eml/edi/988/1/bd75848e651c815316ca9f5ca1652a47

Non-Categorized Data Resource

Name:Data compilation and publishing script
Entity Type:unknown
Description:Code used to compile and QAQC all years of UGGA data, then publish to EDI
Physical Structure Description:
Object Name:QAQC_UGGA_2018_2022.Rmd
Size:8601 bytes
Authentication:7fefaee782b3acff2b0f8110222abb12 Calculated By MD5
Externally Defined Format:
Format Name:text/x-markdown
Data:https://pasta-s.lternet.edu/package/data/eml/edi/988/1/ece6a05cfc373d38b0a637bd3ef99019

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 vocabularygreenhouse gas, Virginia Tech, Stream Team, Western Virginia Water Authority, Falling Creek Reservoir, Beaverdam Reservoir
cuahsi controlled vocabularyreservoir, lake
lter controlled vocabularymethane, carbon dioxide, carbon flux, gas flux
(No thesaurus)diffusion

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:

Diffusive fluxes for methane and carbon dioxide were collected using the floating chamber method (Galfalk et al. 2013; McClure et al. 2020). Following McClure et al. 2020, the flux chamber was constructed using an opaque bucket fitted with foam and wrapped with reflective aluminum tape to prevent internal heating. The volume of the bucket was 0.02 meters cubed with an area of 0.15 meters squared. The fitted foam allowed the chamber to sit approximately 3 cm below the water surface and sealed the inside of the chamber from the surrounding air. The chamber was connected to a Los Gatos ultraportable GHG analyzer (UGGA: Los Gatos Research Inc., San Jose, CA, USA) through two air-tight gas ports which were fitted to the top of the chamber and connected to two separate three-meter sections of 0.635-cm Tygon PVC tubing before being connected to the inlet and waste valves on the UGGA. Air was circulated through the chamber at approximately 405 mL per minute. The moisture corrected methane and carbon dioxide (ppm) were recorded every 10 seconds. The chamber was vented until atmospheric concentrations were reached before being lowered to the water’s surface where 5 minutes of data were collected. This was repeated twice at each site for two replicate measurements per sampling occurence.

Diffusive fluxes (methane, carbon dioxide) were calculated from the collected UGGA concentrations using the FluxCalR package (Zhao, 2019). Briefly, peaks for methane concentration were visually identified for each day and each replicate and served as the end time point for slope calculation (CO2 and CH4, respectively). The slope of carbon dioxide/methane concentration was then calculated for 4 minutes prior to the identified end time point. The slope was converted to diffusive flux assuming 1 atmosphere of pressure and averaging the ambient temperature over the entire measurement period.

References:

Galfalk, M., Bastviken, D., Fredriksson, S., & Arneborg, L. (2013). Determination of the piston velocity for water‐air interfaces using flux chambers, acoustic Doppler velocimetry, and IR imaging of the water surface. J. Geophys. Res. Biogeosci., 118(2), 770-782. https://doi.org/10.1002/jgrg.20064

McClure, R.P., M.E. Lofton, S. Chen, K.M. Krueger, J.C. Little, and C.C. Carey. 2020. Methane ebullition and diffusion rates, turbulence, water temperature, and water depth data from Falling Creek Reservoir (Virginia, USA) in the ice-free period during 2016-2019 ver 2. Environmental Data Initiative. https://doi.org/10.6073/pasta/c6b1a54e356f5ab093d86dcdb89177ba

Zhao, J (2019). FluxCalR: a R package for calculating CO2 and CH4 fluxes from static chambers. Journal of Open Source Software, 4(43), 1751, https://doi.org/10.21105/joss.01751

Additional notes:

From 2018-2022, multiple whole-ecosystem oxygen manipulations were conducted at Falling Creek Reservoir. For a detailed description of the hypolimnetic oxygenation engineered system, see Gerling et al. (2014). These systems were operated over time following the SSS inflow file in Carey et al. (2021).

Carey, C. C., R. Q. Thomas, R. P. McClure, A. G. Hounshell, W. M. Woelmer, H. L. Wander, & A. S. L. Lewis. (2021). CareyLabVT/FCR-GLM: FCR GLM-AED model, data, and code for Carey et al. manuscript (v1.0). Zenodo. https://doi.org/10.5281/zenodo.5528865

Gerling, A.B., Browne, R.G., Gantzer, P.A., Mobley, M.H., Little, J.C., and C.C. Carey. 2014. First report of the successful operation of a side stream supersaturation hypolimnetic oxygenation system in a eutrophic, shallow reservoir. Water Research. 67: 129-143. doi: 10.1016/j.watres.2014.09.002

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: Abigail S. L. Lewis
Organization:Virginia Tech
Email Address:
aslewis@vt.edu
Id:https://orcid.org/0000-0001-9933-4542
Individual: Adrienne Breef-Pilz
Organization:Virginia Tech
Email Address:
abreefpilz@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:
2018-05-07
End:
2021-07-05
Geographic Region:
Description:Beaverdam Reservoir is located in Vinton, Virginia, USA
Bounding Coordinates:
Northern:  37.322865Southern:  37.311961
Western:  -79.824834Eastern:  -79.813848
Geographic Region:
Description:Falling Creek Reservoir is located in Vinton, Virginia, USA
Bounding Coordinates:
Northern:  37.309589Southern:  37.30266
Western:  -79.839249Eastern:  -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: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 N/A
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 DBI-1933016
Related Project:
Title:Collaborative Research: CIBR: Cyberinfrastructure Enabling End-to-End Workflows for Aquatic Ecosystem Forecasting
Personnel:
Individual: Renato J. Figueiredo
Organization:Virginia Tech
Email Address:
renato@ece.ufl.edu
Id:https://orcid.org/0000-0001-8835-4476
Role:Principal Investigator
Funding: National Science Foundation DBI-1933016

Maintenance

Maintenance:
Description:ongoing
Frequency:

Additional Info

Additional Information:
 

Contributions to the 2022 revision:

CCC developed and led the reservoir monitoring program, and ABP led the field crew in 2022. ASL and ABP coordinated sensor maintenance. ASL led data collation, QAQC, and publishing.

Other acknowledgments and historical contributions:

CCC developed and led the reservoir monitoring program, and oversaw UGGA purchasing, use, and maintenance throughout 2018-2022. ASL was the point person for 2018-2022 data collation, QAQC, and publishing. AGH was the point person for UGGA data collection in 2020 and developed an automated QAQC script for UGGA data processing. RPM was the point person for UGGA data collection from 2018–2019. ABP was the field season lead in 2021 and 2022 and assisted in UGGA maintenance during this time.

Other Metadata

Additional Metadata

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        |     |     |     |  \___attribute 'id' = 'partsPerMillionPerSecond'
        |     |     |     |  \___attribute 'multiplierToSI' = 'percent/10000/second'
        |     |     |     |  \___attribute 'name' = 'partsPerMillionPerSecond'
        |     |     |     |  \___attribute 'parentSI' = 'percent, second'
        |     |     |     |  \___attribute 'unitType' = 'concentration rate'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'rate of change in concentration (ppm/s)'
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        |     |___text '\n    '
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Additional Metadata

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