Data Package Metadata   View Summary

Under-ice lake physicochemical data, Missisquoi Bay and Shelburne Pond, Vermont, USA, 2014-2015

General Information
Data Package:
Local Identifier:edi.1020.1
Title:Under-ice lake physicochemical data, Missisquoi Bay and Shelburne Pond, Vermont, USA, 2014-2015
Alternate Identifier:DOI PLACE HOLDER
Abstract:

This dataset contains under-ice physicochemical data from Missisquoi Bay and Shelburne Pond in Vermont, USA collected during the 2013-2014 and 2014-2015 winters and spring thaw periods. The main dataset contains data for ice depths, water column sampling depths, nutrient chemistry, chlorophyll a, and relevant physicochemical variables. Ancillary data includes nearby air temperature data for the study periods as well as river discharge data for contributing or nearby tributaries. Data collection is complete.

Publication Date:2021-11-08
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2014-01-10
End:
2015-04-06

People and Organizations
Contact:Schroth, Andrew (University of Vermont, Research Associate Professor) [  email ]
Creator:Kincaid, Dustin (University of Vermont, Postdoctoral associate)
Creator:Schroth, Andrew (University of Vermont, Research Associate Professor)
Creator:Stockwell, Jason (University of Vermont,  Professor, Director of Wildlife & Fisheries Biology Program, Director of Rubenstein Ecosystem Science Laboratory)
Creator:Joung, DongJoo (University of Rochester, Research Scientist)

Data Entities
Data Table Name:
Under-ice physicochemical variables
Description:
Under-ice lake physicochemical variables for Missiquoi Bay and Shelburne Pond
Data Table Name:
Air Temperatures from nearby GHCN sites
Description:
Air temperatures at Global Historical Climatology Network (GHCN) sites closest to the study lakes. Downloaded on 2020-07-28 from NOAA's Nat'l Centers for Env. Info. Climate Date Online Search - https://www.ncdc.noaa.gov/cdo-web/search?datasetid=GHCND
Data Table Name:
River discharge
Description:
River stage from Missisquoi River or LaPlatte River as reported by the USGS
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1020/1/9f13f287e0fd857ef902c2c5a6d7337c
Name:Under-ice physicochemical variables
Description:Under-ice lake physicochemical variables for Missiquoi Bay and Shelburne Pond
Number of Records:426
Number of Columns:24

Table Structure
Object Name:alldata_2014_2015_mb_sp_forEDI.csv
Size:53182 byte
Authentication:89fd6fa2418e59c306da90e132447e6c Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 sitelocationdateydayice_depthdepthsamp_depth_catsamp_depth_cat2NH4NO3TNSRPDOPTDPPPTPtempcondDOpHturbchlaBGAdoc_mgCL
Column Name:site  
location  
date  
yday  
ice_depth  
depth  
samp_depth_cat  
samp_depth_cat2  
NH4  
NO3  
TN  
SRP  
DOP  
TDP  
PP  
TP  
temp  
cond  
DO  
pH  
turb  
chla  
BGA  
doc_mgCL  
Definition:Study lake nameClarifies whether sample was collected in one of the study lakes or the Missisquoi RiverDate sample or measurement was collectedDay of the year that sample or measurement was collectedThickness of lake ice layer on that sampling date in metersDepth below bottom of ice layer in meters (greater value equals deeper depth) where sample or measurement was collectedCategorical variable for depth range where sample or measurement was collectedCategorical variable for depth range in lake water column where sample or measurement was collectedAmmonium-nitrogen concentrationNitrate-nitrogen concentrationTotal nitrogen concentrationSoluble reactive phosphorus concentrationDissolved organic phosphorus concentration calculated by subtracting the SRP concentration from total dissolved P (TDP) concentrationTotal dissolved phosphorus concentrationParticulate phosphorus concentration calculated by subtracting the TDP concentration from the TP concentrationTotal phosphorus concentration in the water columnWater column temperature measured using a YSI EXO2Water column conductivity level measured using the YSI EXO2Dissolved oxygen concentration of the water column measured using the YSI EXO2pH of water column measured using the YSI EXO2Turbidity level of water column measured using the YSI EXO2Chlorophyll a concentration of the water column measured using the YSI EXO2Phycocyanin concentration in the water column measured using the YSI EXO2Dissolved organic carbon concentration of the water column
Storage Type:string  
string  
dateTime  
float  
float  
float  
string  
string  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
Measurement Type:nominalnominaldateTimeratioratiorationominalnominalratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codemb
DefinitionAbbreviation for Missisquoi Bay
Source
Code Definition
Codesp
DefinitionAbbreviation for Shelburne Pond
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeLake
DefinitionIndicates sample was either collected in Missisquoi Bay or Shelburne Pond
Source
Code Definition
CodeRiver
DefinitionIndicate sample was collected in the Missisquoi River
Source
FormatYYYY-MM-DD
Precision
UnitDay of the year
Typeinteger
Unitmeter
Typereal
Unitmeter
Typereal
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codenan
DefinitionNot available
Source
Code Definition
CodeD1
DefinitionUppermost depth in the lake water column
Source
Code Definition
CodeD2
DefinitionUpper middle depth of three in the lake water column
Source
Code Definition
CodeD3
DefinitionMiddle depth or three mid-depths in the lake water column
Source
Code Definition
CodeD4
DefinitionLowest depth or three mid-depths in the lake water column
Source
Code Definition
CodeD5
DefinitionBottom depth of the lake water column just above the sediment-water interface
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codenan
DefinitionNot available
Source
Code Definition
CodeBottom
DefinitionBottom of the lake water column just above the sediment-water interface
Source
Code Definition
CodeMid-1
DefinitionUppermost depth of three middle depths in the water column
Source
Code Definition
CodeMid-2
DefinitionSecond depth of three middle depths in the water column
Source
Code Definition
CodeMid-3
DefinitionLowest depth of three middle depths in the water column
Source
Code Definition
CodeRiver
DefinitionSample or measurement was collected in Missisquoi River not one of the study lakes
Source
Code Definition
CodeTop
DefinitionUppermost sampling depth in the water column just below the lake ice cover
Source
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
Unitcelsius
Typereal
UnitmicroSiemensPerCentimeter
Typereal
UnitmilligramPerLiter
Typereal
Unitunitless
Typereal
UnitNephelometricTurbidityUnits
Typereal
UnitmicrogramPerLiter
Typereal
UnitcellsPerMilliliter
Typereal
UnitmilligramPerLiter
Typereal
Missing Value Code:        
CodeNA
ExplIce depth reported for this date, but not copied into this row
CodeNA
ExplDepth is not reported for measurements made in the river
CodeNA
ExplCategory reported for this date, but not copied into this row
CodeNA
ExplCategory reported for this date, but not copied into this row
CodeNA
ExplConcentration not measured or reported
CodeNA
ExplConcentration not measured or reported
CodeNA
ExplConcentration not measured or reported
CodeNA
ExplConcentration not measured or reported
CodeNA
ExplConcentration not measured or reported
CodeNA
ExplConcentration not measured or reported
CodeNA
ExplConcentration not measured or reported
CodeNA
ExplConcentration not measured or reported
CodeNA
ExplMeasurement not collected
CodeNA
ExplMeasurement not collected
CodeNA
ExplMeasurement not collected
CodeNA
ExplMeasurement not collected
CodeNA
ExplMeasurement not collected
CodeNA
ExplMeasurement not collected
CodeNA
ExplMeasurement not collected
CodeNA
ExplConcentration not measured or reported
Accuracy Report:                                                
Accuracy Assessment:                                                
Coverage:                                                
Methods:                                                

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1020/1/3caa9d7245252fff7db29a5b5937f4bc
Name:Air Temperatures from nearby GHCN sites
Description:Air temperatures at Global Historical Climatology Network (GHCN) sites closest to the study lakes. Downloaded on 2020-07-28 from NOAA's Nat'l Centers for Env. Info. Climate Date Online Search - https://www.ncdc.noaa.gov/cdo-web/search?datasetid=GHCND
Number of Records:521
Number of Columns:11

Table Structure
Object Name:airTemperatures_fromGHCN.csv
Size:77202 byte
Authentication:693bac999aa5b59ca435d748575dd404 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 stationnamedatetmaxtmintobstavgydaytavg_altwinterlake
Column Name:station  
name  
date  
tmax  
tmin  
tobs  
tavg  
yday  
tavg_alt  
winter  
lake  
Definition:Identification code for the observation stationName of the observation stationDate of measurementHighest hourly temperatureLowest hourly temperatureTemperature at the time of observationAverage of hourly temperature valuesDay of the year; negative values indicate days before December 31 of previous year (0 = December 31; negative value = earlier in the previous year)Temperature average calculated as the mean of tmax and tminDefines which winter samples were collected inStudy lake associated with this observation site
Storage Type:string  
string  
dateTime  
float  
float  
float  
float  
float  
float  
string  
string  
Measurement Type:nominalnominaldateTimeratioratioratioratioratiorationominalnominal
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeUSC00432773
DefinitionENOSBURG FALLS 2, VT US
Source
Code Definition
CodeUSW00014742
DefinitionBURLINGTON INTERNATIONAL AIRPORT, VT US
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeBURLINGTON INTERNATIONAL AIRPORT, VT US
DefinitionSite closest to Shelburne Pond
Source
Code Definition
CodeENOSBURG FALLS 2, VT US
DefinitionSite closest to Missisquoi Bay
Source
FormatYYYY-MM-DD
Precision
Unitcelsius
Typereal
Unitcelsius
Typereal
Unitcelsius
Typereal
Unitcelsius
Typereal
UnitDay of the year
Typeinteger
Unitcelsius
Typereal
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codewinter2014
Definition2013-2014 winter
Source
Code Definition
Codewinter2015
Definition2014-2015 winter
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codemb
DefinitionMissisquoi Bay
Source
Code Definition
Codesp
DefinitionShelburne Pond
Source
Missing Value Code:          
CodeNA
ExplMeasurement not reported
CodeNA
ExplMeasurement not reported
       
Accuracy Report:                      
Accuracy Assessment:                      
Coverage:                      
Methods:                      

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1020/1/1a3819cc0dcc6a6223dd97c5cb76d50c
Name:River discharge
Description:River stage from Missisquoi River or LaPlatte River as reported by the USGS
Number of Records:104467
Number of Columns:6

Table Structure
Object Name:riverDischarge.csv
Size:6142572 byte
Authentication:fbfb1740e62febef39d89bb4b2d56965 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 agency_cdsite_nosite_nametimestampGH_Inst_ftGH_Inst_m
Column Name:agency_cd  
site_no  
site_name  
timestamp  
GH_Inst_ft  
GH_Inst_m  
Definition:Agency codeUSGS site numberSite name abbreviationMeasurement time (timezone = Eastern Standard Time; GMT-05)river gage heightRiver gage height converted to meters
Storage Type:string  
string  
string  
dateTime  
float  
float  
Measurement Type:nominalnominalnominaldateTimeratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeUSGS
DefinitionUS Geological Survey
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Code4282795
DefinitionLAPLATTE RIVER AT SHELBURNE FALLS, VT
Source
Code Definition
Code4293500
DefinitionMISSISQUOI RIVER NEAR EAST BERKSHIRE, VT
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codeeberk
DefinitionMISSISQUOI RIVER NEAR EAST BERKSHIRE, VT
Source
Code Definition
Codelaplatte
DefinitionLAPLATTE RIVER AT SHELBURNE FALLS, VT
Source
FormatYYYY-MM-DD hh:mm:ss
Precision
Unitfoot
Typereal
Unitmeter
Typereal
Missing Value Code:        
CodeNA
ExplMeasurement not reported
CodeNA
ExplMeasurement not reported
Accuracy Report:            
Accuracy Assessment:            
Coverage:            
Methods:            

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)Vermont, USA, lake, eutrophic
LTER Controlled Vocabularynitrogen, phosphorus, winter

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:

Water column sampling and analyses

Under-ice water samples were collected at the same site in MB (2014 and 2015) and SP (2015 only) during 7 (2014) and 8 (2015) sampling trips per year from January 10 (day-of-year [DOY] 10) to April 3 (DOY 93) in 2014 and January 15 (DOY 15) to April 6 (DOY 96) in 2015. Both lakes were completely ice covered during the final April sampling dates. In both years, no ice cover remained on Missisquoi Bay after April 18-21. Multiple holes were drilled through the ice to measure ice thickness, make water column profile measurements with a sonde (duplicate casts in different holes), and collect water samples. Sampling holes were 1–2 m away from each other to minimize contamination and disturbance among sample collections and sensor measurements. All sampling was done during the day.

Temperature, dissolved oxygen (DO), chl a, phycocyanin, turbidity, and conductivity were measured every 0.5 m from just under the ice to the sediment-water interface through the sampling holes using a YSI EXO2 (2014) or YSI 6600 sonde (2015; YSI, Yellow Springs, Ohio) in two separate sampling holes. The near-bottom sensor measurements may represent around 5–10 cm above the sediments due to sensor protection guard, which likely overestimates DO concentrations at the sediment-water interface where steep gradients are known to occur (Schroth et al. 2015; Giles et al. 2016). To quantify tributary inputs of these variables during the basin-wide 2015 thaw, we also made these measurements in the Missisquoi River on DOY 87 and 96.

Water samples for N chemistry were collected through an unused sampling hole using a Masterflex peristaltic pump and acid-cleaned tubing (7.5% hydrochloric acid) at the same depths the sonde measurements were recorded. The samples were collected in duplicate in acid-clean 1-L HDPE bottles. In the field, subsamples for NH4+ and NO3- were filtered through 0.45-μm pore-size polyethersulfone membrane filters and an unfiltered subsample was kept for total N. The samples were transferred to the laboratory on ice and subsequently frozen until lab analysis. NO3-N and NH4-N concentrations were determined using EPA methods 353.2 (USEPA 1993a) and 350.1 (USEPA 1993b), respectively, and measured using an AQ2 Autoanalyzer (Seal Analytical, Mequon, Wisconsin, USA). Following persulfate digestion (Std. Method 4500 P-J.; APHA 2005), total N concentration was determined using EPA method 353.2 (USEPA 1993a) and measured with the AQ2 Autoanalyzer. Additionally, to quantify tributary NO3- inputs during the basin-wide 2015 thaw, we determined NO3-N concentrations on filtered water samples from the Missisquoi River twice in 2015 using the global river calibration on an s::can spectro::lyser UV-Visible spectrophotometer (s::can Messtechnik GmbH, Vienna, Austria).

Relevant citations:

APHA (2005) Standard Methods for the Examination of Water and Wastewater, 21st ed. American Public Health Association (APHA), the American Water Works Association (AWWA), and the Water Environment Federation (WEF), Washington, D.C., USA

USEPA (1993a) Method 353.2, revision 2.0: Determination of nitrate-nitrite nitrogen by automated colorimetry. United States Environmental Protection Agency

USEPA (1993b) Method 350.1, revision 2.0: Determination of ammonia nitrogen by semi-automated colorimetry. United States Environmental Protection Agency

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: Dustin Kincaid
Organization:University of Vermont
Position:Postdoctoral associate
Email Address:
dustinkincaid@gmail.com
Id:https://orcid.org/0000-0003-1640-685X
Individual: Andrew Schroth
Organization:University of Vermont
Position:Research Associate Professor
Email Address:
Andrew.Schroth@uvm.edu
Id:https://orcid.org/0000-0001-5553-3208
Individual: Jason Stockwell
Organization:University of Vermont
Position: Professor, Director of Wildlife & Fisheries Biology Program, Director of Rubenstein Ecosystem Science Laboratory
Email Address:
jason.stockwell@uvm.edu
Id:https://orcid.org/0000-0003-3393-6799
Individual: DongJoo Joung
Organization:University of Rochester
Position:Research Scientist
Email Address:
djoung@ur.rochester.edu
Id:https://orcid.org/0000-0002-2711-3780
Contacts:
Individual: Andrew Schroth
Organization:University of Vermont
Position:Research Associate Professor
Email Address:
andrew.schroth@uvm.edu
Id:https://orcid.org/0000-0001-5553-3208
Metadata Providers:
Individual: Dustin Kincaid
Organization:University of Vermont
Position:Postdoctoral associate
Email Address:
dustinkincaid@gmail.com
Id:https://orcid.org/0000-0003-1640-685X

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
2014-01-10
End:
2015-04-06
Geographic Region:
Description:Missisquoi Bay (Lake Champlain) and Shelburne Pond in northwestern Vermont, USA
Bounding Coordinates:
Northern:  45.085099Southern:  44.376384
Western:  -73.225871Eastern:  -73.150898

Project

Parent Project Information:

Title:Influence of ice cover and thaw events on under-ice biogeochemistry in eutrophic lakes
Personnel:
Individual: Dustin Kincaid
Organization:University of Vermont
Position:Postdoctoral associate
Email Address:
dustinkincaid@gmail.com
Id:https://orcid.org/0000-0003-1640-685X
Role:Data curation and analysis
Individual: Andrew Schroth
Organization:University of Vermont
Position:Research Associate Professor
Email Address:
andrew.schroth@uvm.edu
Id:https://orcid.org/0000-0001-5553-3208
Role:Principal investigator
Individual: Jason Stockwell
Organization:University of Vermont
Position:Professor, Director of Wildlife & Fisheries Biology Program, Director of Rubenstein Ecosystem Science Laboratory
Email Address:
jason.stockwell@uvm.edu
Id:https://orcid.org/0000-0003-3393-6799
Role:Principal investigator
Individual: DongJoo Joung
Organization:University of Rochester
Position:Research Scientist
Email Address:
djoung@ur.rochester.edu
Id:https://orcid.org/0000-0002-2711-3780
Role:Data collection and analysis
Additional Award Information:
Funder:National Science Foundation
Number:EPS-1101317
Title:Adaptation to Climate Change in the Lake Champlain Basin: New Understanding through Complex Systems Modeling
Additional Award Information:
Funder:National Science Foundation
Number:EPS-IIA1330446
Title:Collaborative Research: North East Water Resources Network
Additional Award Information:
Funder:National Science Foundation
Number:OIA1556770
Title:RII Track-1 Lake Champlain Basin Resilience to Extreme Events
Additional Award Information:
Funder:National Science Foundation
Number:EAR-1561014
Title:SusChEM: Redox and mineral controls maximizing Phosphorus mobility and bioavailability

Maintenance

Maintenance:
Description:

Data collection has been completed.

Frequency:
Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n        '
        |___element 'metadata'
        |     |___text '\n            '
        |     |___element 'unitList'
        |     |     |___text '\n                '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'microSiemensPerCentimeter'
        |     |     |     |  \___attribute 'name' = 'microSiemensPerCentimeter'
        |     |     |     |___text '\n                    '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n                '
        |     |     |___text '\n                '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'unitless'
        |     |     |     |  \___attribute 'name' = 'unitless'
        |     |     |     |___text '\n                    '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n                '
        |     |     |___text '\n                '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'NephelometricTurbidityUnits'
        |     |     |     |  \___attribute 'name' = 'NephelometricTurbidityUnits'
        |     |     |     |___text '\n                    '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'The units of turbidity from a calibrated nephelometer are called Nephelometric Turbidity Units'
        |     |     |     |___text '\n                '
        |     |     |___text '\n                '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'cellsPerMilliliter'
        |     |     |     |  \___attribute 'name' = 'cellsPerMilliliter'
        |     |     |     |___text '\n                    '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n                '
        |     |     |___text '\n                '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'Day of the year'
        |     |     |     |  \___attribute 'name' = 'Day of the year'
        |     |     |     |___text '\n                    '
        |     |     |     |___element 'description'
        |     |     |     |     |___text '1-365 (January 1 = 1)'
        |     |     |     |___text '\n                '
        |     |     |___text '\n            '
        |     |___text '\n        '
        |___text '\n    '

Additional Metadata

additionalMetadata
        |___text '\n        '
        |___element 'metadata'
        |     |___text '\n            '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2021.10.27'
        |     |___text '\n        '
        |___text '\n    '

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

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