Data Package Metadata   View Summary

Time series of high-frequency profiles of depth, temperature, dissolved oxygen, conductivity, specific conductivity, chlorophyll a, turbidity, pH, oxidation-reduction potential, photosynthetic active radiation, and descent rate for Beaverdam Reservoir, Carvins Cove Reservoir, Falling Creek Reservoir, Gatewood Reservoir, and Spring Hollow Reservoir in Southwestern Virginia, USA 2013-2021

General Information
Data Package:
Local Identifier:edi.706.3
Title:Time series of high-frequency profiles of depth, temperature, dissolved oxygen, conductivity, specific conductivity, chlorophyll a, turbidity, pH, oxidation-reduction potential, photosynthetic active radiation, and descent rate for Beaverdam Reservoir, Carvins Cove Reservoir, Falling Creek Reservoir, Gatewood Reservoir, and Spring Hollow Reservoir in Southwestern Virginia, USA 2013-2021
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Depth profiles of temperature, dissolved oxygen, conductivity, specific conductivity, chlorophyll a, and turbidity were collected with a CTD (Conductivity, Temperature, and Depth) profiler fitted with a SBE 43 Dissolved Oxygen sensor and an ECO Triplet Fluorometer and Backscattering Sensor from 2013 to 2021. From 2017-2021, pH and oxidation-reduction potential (ORP) were also collected with a SBE 27 pH and O.R.P. (redox) sensor. CTD profiles were collected in five drinking water reservoirs in southwestern Virginia, USA. All variables were measured every 0.25 seconds, resulting in depth profiles at approximately ten centimeter resolution. The five study reservoirs are: Beaverdam Reservoir (Vinton, Virginia), Carvins Cove Reservoir (Roanoke, Virginia), Falling Creek Reservoir (Vinton, Virginia), Gatewood Reservoir (Pulaski, Virginia), and Spring Hollow Reservoir (Salem, Virginia). 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, and Gatewood Reservoir is a drinking water source for the town of Pulaski, Virginia. The dataset consists of CTD depth profiles measured at the deepest site of each reservoir adjacent to the dam as well as other reservoir sites on a transect upstream in Carvins Cove Reservoir and Falling Creek Reservoir. The profiles were collected approximately fortnightly in the spring months, weekly in the summer and early autumn, and monthly in the late autumn and winter. Beaverdam Reservoir, Carvins Cove Reservoir, and Falling Creek Reservoir were sampled every year in the dataset (2013-2021); Spring Hollow Reservoir was not in sampled in 2018, 2020, or 2021; and Gatewood Reservoir was only sampled in 2016.

Publication Date:2022-01-25
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2013-03-07
End:
2021-12-14

People and Organizations
Contact:Carey, Cayelan C. (Virginia Tech) [  email ]
Creator:Carey, Cayelan C. (Virginia Tech)
Creator:Lewis, Abigail S. L. (Virginia Tech)
Creator:McClure, Ryan P. (Virginia Tech)
Creator:Gerling, Alexandra B. (Virginia Tech)
Creator:Breef-Pilz, Adrienne (Virginia Tech)
Creator:Das, Arpita (Virginia Tech)

Data Entities
Data Table Name:
CTD dataset 2013-2021
Description:
Reservoir CTD dataset
Other Name:
CTD QAQC script
Description:
QAQC script for reference
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/706/3/0a62d1946e8d9a511bc1404e69e59b8c
Name:CTD dataset 2013-2021
Description:Reservoir CTD dataset
Number of Records:997471
Number of Columns:25

Table Structure
Object Name:CTD_2013_2021.csv
Size:119627686 bytes
Authentication:072127a981330f82f9a49d8af8374351 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 
Column Name:Reservoir  
Site  
Date  
Depth_m  
Temp_C  
DO_mgL  
DO_pSat  
Cond_uScm  
Spec_Cond_uScm  
Chla_ugL  
Turb_NTU  
pH  
ORP_mV  
PAR_umolm2s  
Desc_rate  
Flag_Temp  
Flag_DO  
Flag_Cond  
Flag_SpecCond  
Flag_Chla  
Flag_Turb  
Flag_pH  
Flag_ORP  
Flag_PAR  
Flag_DescRate  
Definition:Three-letter code corresponding to sampled reservoirSampling site within each reservoirDate and time of sampling. All data were collected in the eastern time zone of the U.S.A., with daylight savings time observedWater depth where the sensor reading was measured; negative values indicate height above the water’s surfaceWater temperatureDissolved oxygen (DO) concentrationDissolved oxygen (DO) percent saturationConductivitySpecific conductance; conductivity normalized to 20 degrees celsiusChlorophyll aTurbidityWater pHReduction potentialPhotosynthetically active radiationDescent rateData flag for temperature; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 4=Negative value set to 0, 5=No sensor on CTD, 6=Measurement removed (above water)Data flag for dissolved oxygen (DO) concentration; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 4=Negative value set to 0, 5=No sensor on CTD, 6=Measurement removed (above water)Data flag for conductivity; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 4=Negative value set to NA, 5=No sensor on CTD, 6=Measurement removed (above water)Data flag for specific conductivity; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 4=Negative value set to NA, 5=No sensor on CTD, 6=Measurement removed (above water)Data flag for chlorophyll a; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 4=Negative value set to 0, 5=No sensor on CTD, 6=Measurement removed (above water)Data flag for turbidity; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 4=Negative value set to 0, 5=No sensor on CTD, 6=Measurement removed (above water)Data flag for pH; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 4=Negative value set to 0, 5=No sensor on CTD, 6=Measurement removed (above water), 8=Measurement outside of expected range but retained in datasetData flag for ORP; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 5=No sensor on CTD, 6=Measurement removed (above water)Data flag for photosynthetically active radiation (PAR); 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 3=Sample below detection, 4=Negative value set to NA, 5=No sensor on CTDData flag for descent rate; 0=Not suspect, 1=Sample not taken, 2=Instrument malfunction, 5=No sensor on CTD
Storage Type:string  
float  
date  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
Measurement Type:nominalratiodateTimeratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeBVR
DefinitionBeaverdam Reservoir
Source
Code Definition
CodeCCR
DefinitionCarvins Cove Reservoir
Source
Code Definition
CodeFCR
DefinitionFalling Creek Reservoir
Source
Code Definition
CodeGWR
DefinitionGatewood Reservoir
Source
Code Definition
CodeSHR
DefinitionSpring Hollow Reservoir
Source
Unitdimensionless
Typenatural
Min10 
Max50 
FormatYYYY-MM-DD hh:mm:ss
Precision
Unitmeter
Typereal
Min-0.797 
Max63.797 
Unitcelsius
Typereal
Min2.2541 
Max37.8602 
UnitmilligramsPerLiter
Typereal
Min
Max18.56988 
Unitpercent
Typereal
Min
Max193.164 
UnitmicroSiemenPerCentimeter
Typereal
Min0.777231 
Max658.933835 
UnitmicroSiemenPerCentimeter
Typereal
Min4.774 
Max476.21 
UnitmicrogramsPerLiter
Typereal
Min
Max258.2027 
Unitdimensionless
Typereal
Min
Max1093.3846 
Unitdimensionless
Typereal
Min5.682 
Max10.704 
Unitmillivolt
Typereal
Min-199.6711 
Max853.5177 
UnitmicromolePerMeterSquaredPerSecond
Typereal
Min0.11767 
Max10592 
UnitmetersPerSecond
Typereal
Min-4.242 
Max4.787 
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Unitdimensionless
Typewhole
Min
Max
Missing Value Code:      
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
CodeNA
ExplNo data
                   
Accuracy Report:                                                  
Accuracy Assessment:                                                  
Coverage:                                                  
Methods:                                                  

Non-Categorized Data Resource

Name:CTD QAQC script
Entity Type:unknown
Description:QAQC script for reference
Physical Structure Description:
Object Name:QAQC_CTD_2013_2021.Rmd
Size:24704 bytes
Authentication:8879e86ae6ef34aaea4749193fef14a9 Calculated By MD5
Externally Defined Format:
Format Name:text/x-markdown
Data:https://pasta-s.lternet.edu/package/data/eml/edi/706/3/708e55148d772d768bd9106984c3bfd9

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:
(No thesaurus)Carey Lab, Virginia Tech, Lake, Reservoir, High-frequency Sensors, Temperature sensor, Dissolved Oxygen, Conductivity, Specific conductivity, Photosynthetic active radiation, Chlorophyll a, Turbidity, pH, Reduction Potential, Descent rate, Western Virginia Water Authority, Falling Creek Reservoir, Beaverdam Reservoir, Carvins Cove Reservoir, Spring Hollow Reservoir, Gatewood Reservoir

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:

Depth profiles of multiple water-quality variables were collected from 2013 through 2021 using a Conductivity, Temperature and Depth (CTD) profiler from SeaBird Electronics (SBE, Bellevue Washington, USA). Profiles were collected, at minimum, monthly between May to October (usually weekly or subweekly), and bimonthly between November to April. Most CTD casts were collected from 9:00 to 15:00, however, some CTD casts were collected at night. Above water temperature and PAR are included in the dataset for 2018–2021, and are denoted with a negative depth measurement that indicates the distance above the surface of the reservoir.

The CTD was calibrated by the manufacturer according to the standards and practices of SBE and the companies with secondary sensors coupled to the instrument. Calibration was performed yearly (usually in December-February), except during/before the 2021 field season when calibration was delayed until August 2021 due to the ongoing covid-19 pandemic.

Flags indicate known or suspected issues with measured variables. We note that the Depth_m likely also includes marginal error over the course of the dataset, but this error is unquantified and unflagged.

INSTRUMENTS, MANUAL, AND SERIAL NUMBERS USED BETWEEN 2013 - 2021

Multiple sensors and instruments were added over time; below we note changes in the CTD software, sensor versions, and provide links to the accompanying instrument manuals.

Seacat 19Plus V 1.6 SERIAL NO. 4397 2013 - 2016 http://www.seabird.com/sites/default/files/documents/19plus_018_0.pdf

Sea-Bird SBE19Plus V2 SERIAL NO. 7809 2017 - 2021 http://www.seabird.com/sites/default/files/documents/19plusV2_015.pdf

For CTD processing, refer to the SeaBird Data processing manual. http://www.seabird.com/sites/default/files/documents/SBEDataProcessing_7.26.7.pdf

SBE 43 Dissolved Oxygen Sensor SERIAL NO. 0434 2013 - 2021 http://www.seabird.com/sites/default/files/documents/appnote64Jun13.pdf

FluoroWetlabECO_AFL_FL_Sensor SERIAL NO. 2496 2013 - 2021

Turbidity Meter WET Labs ECO-NTU SERIAL NO. 2496 2013 - 2021 http://www.seabird.com/sites/default/files/documents/manual-ECOMasterben.pdf

OxidationReductionPotentialSensor SensorID = 41 SERIAL NO. 0363 2017 - 2021 http://www.seabird.com/sites/default/files/documents/appnote18-1Sep14.pdf

Photosynthetically Active Radiation (PAR) Sensor SERIAL NO. 1122 2017 - 2021 https://www.seabird.com/product.detail-print.version.jsa?id=54627923891

Additional Notes From 2013 to 2021, multiple whole-ecosystem manipulations were conducted at Falling Creek Reservoir. These manipulations include intermittent operation of hypolimnetic oxygenation and pulsed epilimnetic mixing engineering systems. For a detailed description of the hypolimnetic oxygenation engineered system, see Gerling et al. (2014) and for a detailed description of the epilimnetic mixing engineered system, see Chen et al. (2017). These systems were operated over time following Table 1 in Gerling et al. (2016), Table 1 in Munger et al. (2016), and Table 2 in McClure et al. (2018), and 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

Chen, S., C. Lei, C.C. Carey, and J.C. Little. 2016. Modelling the effect of artificial mixing on thermal stability and substance transport in a drinking-water reservoir using a 3D hydrodynamic model. Proceedings of the 20th Australasian Fluid Mechanics Conference. Perth, Australia, 5-8 December 2016.

Chen, S., C. Lei, C.C. Carey, P.A. Gantzer, and J.C. Little. 2017. Predicting hypolimnetic oxygenation and epilimnetic mixing in a shallow eutrophic reservoir using a coupled three-dimensional hydrodynamic model. Water Resources Research. 53: 470-484. DOI: 10.1002/2016WR019279

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

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

McClure, R.P., K.D. Hamre, B.R. Niederlehner, Z.W. Munger, S. Chen, M.E. Lofton, M.E. Schreiber, and C.C. Carey. 2018 Metalimnetic oxygen minima alter the vertical profiles of carbon dioxide and methane in a managed freshwater reservoir. Science of the Total Environment 636: 610-620. DOI: 10.1016/j.scitotenv.2018.04.255

Munger, Z.W., C.C. Carey, A.B. Gerling, K.D. Hamre, J.P. Doubek, S.D. Klepatzki, R.P. McClure, and M.E. Schreiber. 2016. Effectiveness of hypolimnetic oxygenation for preventing accumulation of Fe and Mn in a drinking water reservoir. Water Research. 106: 1-14. DOI: 10.1016/j.watres.2016.09.038.

People and Organizations

Publishers:
Organization:Environmental Data Initiative
Email Address:
info@environmentaldatainitiative.org
Web Address:
https://environmentaldatainitiative.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: 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
Individual: Adrienne Breef-Pilz
Organization:Virginia Tech
Email Address:
abreefpilz@vt.edu
Id:https://orcid.org/0000-0002-6759-0063
Individual: Arpita Das
Organization:Virginia Tech
Email Address:
arpitadas@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:
2013-03-07
End:
2021-12-14
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:Carvins Cove Reservoir is located in Roanoke, Virginia, USA
Bounding Coordinates:
Northern:  37.409127Southern:  37.365345
Western:  -79.978642Eastern:  -79.944052
Geographic Region:
Description:Falling Creek Reservoir is located in Vinton, Virginia, USA
Bounding Coordinates:
Northern:  37.309589Southern:  37.30266
Western:  -79.839249Eastern:  -79.836009
Geographic Region:
Description:Gatewood Reservoir is located in Pulaski, Virginia, USA
Bounding Coordinates:
Northern:  37.054358Southern:  37.03819
Western:  -80.89188Eastern:  -80.858492
Geographic Region:
Description:Spring Hollow Reservoir is located in Salem, Virginia, USA
Bounding Coordinates:
Northern:  37.231092Southern:  37.217594
Western:  -80.179076Eastern:  -80.170407

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: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: Virginia Tech Global Change Center
Related Project:
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: Fralin Life Sciences Institute
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:University of Florida
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:
 

Author contributions:

CCC developed and led the reservoir monitoring program 2013-present, and oversaw CTD purchasing, use, and maintenance throughout this time. ASL was the point person for CTD data collation, QAQC, and maintenance from 2019–2021, and automated CTD data processing based on scripts created by RPM. RPM was the point person for CTD data collation, QAQC, and maintenance from 2015-2018, and automated CTD data processing based on a workflow created by ABG. ABG was the point person for CTD data collation, QAQC, and maintenance from 2013–2015 and developed the FCR sampling program. ABP is a collaborator on the 2021 data publication for leading the field sampling campaign and assisting in CTD maintenance, and AD is a collaborator on the 2021 data publication for processing data from 2018–2021.

Other Metadata

Additional Metadata

additionalMetadata
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        |     |     |     |  \___attribute 'id' = 'microSiemenPerCentimeter'
        |     |     |     |  \___attribute 'multiplierToSI' = '1.00E-04'
        |     |     |     |  \___attribute 'name' = 'microSiemenPerCentimeter'
        |     |     |     |  \___attribute 'parentSI' = 'siemenPerMeter'
        |     |     |     |  \___attribute 'unitType' = 'conductance'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'microSiemenPerCentimeter'
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        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'micromolePerMeterSquaredPerSecond'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.0864'
        |     |     |     |  \___attribute 'name' = 'micromolePerMeterSquaredPerSecond'
        |     |     |     |  \___attribute 'parentSI' = 'molePerMeterSquaredPerDay'
        |     |     |     |  \___attribute 'unitType' = 'arealMassDensityRate'
        |     |     |     |___text '\n          '
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        |     |     |     |     |___text 'micromole per meter squared per second'
        |     |     |     |___text '\n        '
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EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

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