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Cascade Project at North Temperate Lakes LTER – High-resolution Spatial Data for Whole Lake Experiments 2018 - 2019

General Information
Data Package:
Local Identifier:knb-lter-ntl.412.1
Title:Cascade Project at North Temperate Lakes LTER – High-resolution Spatial Data for Whole Lake Experiments 2018 - 2019
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Spatial measurements of water quality from Peter and Paul lakes in 2018 and 2019. In 2019, inorganic nitrogen and phosphorus were added to Peter Lake daily to cause an algal bloom while Paul Lake was an unmanipulated reference lake. In 2018, both lakes were sampled 1 time per week, while in 2019 lakes were sampled three times per week. Measurements were taken using the FLAMe sampling platform (Crawford et al. 2015, Environmental Science and Technology 49:442-450), which was driven in a grid pattern and recorded GPS coordinates and water measurements at 1Hz to create high resolution spatial maps.

Publication Date:2022-01-21
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2018-06-08
End:
2019-09-04

People and Organizations
Contact:Buelo, Cal D (University of Wisconsin) [  email ]
Creator:Buelo, Cal D (University of Wisconsin)
Creator:Pace, Michael L (University of Virginia)
Creator:Carpenter, Stephen R (University of Wisconsin)
Creator:Stanley, Emily H (University of Wisconsin)
Creator:Ortiz, David A (University of Wisconsin)
Creator:Ha, Dat T (University of Virginia)

Data Entities
Data Table Name:
FLAMe spatial data
Description:
Spatial measurements of water quality parameters during whole lake experiments
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ntl/412/1/e15df82bcd018e99d80facfac2cbc700
Name:FLAMe spatial data
Description:Spatial measurements of water quality parameters during whole lake experiments
Number of Records:176291
Number of Columns:10

Table Structure
Object Name:tvsews_flame_data.csv
Size:13822476 byte
Authentication:b5e7d1216aa8c05bb2174273e0af1316 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 LakeYearDOYDatedate_timelatitudelongitudeBGApc_ugL_tauODO_percent_taupH_tau
Column Name:Lake  
Year  
DOY  
Date  
date_time  
latitude  
longitude  
BGApc_ugL_tau  
ODO_percent_tau  
pH_tau  
Definition:Lake name abbreviationYear of samplingDay Of Year of samplingDate of SamplingDate and time of individual sample point Latitude of individual sample pointLongitude of individual sample pointBlue-green algae phycocyanin relative concentration corrected for residence and sensor response timesDissolved oxygen percent saturation corrected for residence and sensor response times pH corrected for residence and sensor response times
Storage Type:string  
dateTime  
float  
dateTime  
dateTime  
float  
float  
float  
float  
float  
Measurement Type:nominaldateTimeratiodateTimedateTimeratioratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeL
DefinitionPaul Lake
Source
Code Definition
CodeR
DefinitionPeter Lake
Source
FormatYYYY
Precision
UnitnominalYear
Typeinteger
FormatYYYY-MM-DD
Precision
FormatYYYY-MM-DDThh:mm:ssZ
Precision
Unitdegree
Typereal
Unitdegree
Typereal
UnitmicrogramPerLiter
Typereal
UnitpercentSaturation
Typereal
Unitdimensionless
Typereal
Missing Value Code:          
CodeNA
Explmissing value
CodeNA
Explmissing value
CodeNA
Explmissing or error
CodeNA
Explmissing or error
CodeNA
Explmissing or error
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:
LTER Controlled Vocabularyphytoplankton, lakes, limnology, fertilization, oxygen
(No thesaurus)eutrophication, nutrient additions, Cascade

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:

Two lakes were studied for two years to test for spatial early warning statistics (EWS) prior to an experimentally induced algal bloom. In 2018, both Peter and Paul lakes were unmanipulated and spatial measurements of each lake were taken weekly from June 6th to August 21st to establish baseline conditions and EWS values. In 2019, nutrients were added to Peter Lake while Paul Lake remained an unmanipulated reference lake. Both lakes were measured three times per week from May 29th to September 4th. More details on nutrient additions (loading rates, N:P ratios) are provided in Buelo et al. 2022 (Ecological Applications, link below).

The FLAMe sampling platform is fully described in Crawford et al. 2015 (Environmental Science and Technology, 49:442-450). Briefly, the platform is a boat-mounted system that continuously pumps water from the lake through a sensor array. Water quality measurements are collected every second (1 Hz) and matched to concurrently taken GPS coordinates, as well as corrected for the residence time of the sensor chamber and response time of the sensors (“tau” corrected). Water quality measurements were taken by a YSI Inc. EXO2 multi-parameter sonde and include dissolved oxygen percent saturation, pH, and phycocyanin/blue-green algae fluorescence (BGApc). Phycocyanin concentrations (micrograms per liter) are based on manufacturer-provided calibration curves but should be interpreted as relative measurements as we did not calibrate the sensor to extracted pigment concentrations or microscopy counts. The FLAMe system was mounted in a small, flat-bottomed boat propelled by an electric motor at approximately 1.5 m/s, which was driven in a grid pattern with approximately 15 m between tracks.

An R package utilizing these data for the evaluation of early warning statistic methods to predict algal blooms is available on GitHub (https://github.com/cbuelo/tvsews) and archived on Zenodo (https://doi.org/10.5281/zenodo.5874868).

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: Cal D Buelo
Organization:University of Wisconsin
Email Address:
cbuelo@wisc.edu
Id:https://orcid.org/0000-0001-7909-1440
Individual: Michael L Pace
Organization:University of Virginia
Email Address:
mlp5fy@virginia.edu
Id:https://orcid.org/0000-0001-5945-6131
Individual: Stephen R Carpenter
Organization:University of Wisconsin
Email Address:
steve.carpener@wisc.edu
Id:https://orcid.org/0000-0001-8097-8700
Individual: Emily H Stanley
Organization:University of Wisconsin
Email Address:
ehstanley@wisc.edu
Id:https://orcid.org/0000-0003-4922-8121
Individual: David A Ortiz
Organization:University of Wisconsin
Email Address:
dortiz4@wisc.edu
Id:https://orcid.org/0000-0003-4605-3530
Individual: Dat T Ha
Organization:University of Virginia
Email Address:
dh3dv@virginia.edu
Contacts:
Individual: Cal D Buelo
Organization:University of Wisconsin
Email Address:
cbuelo@wisc.edu
Id:https://orcid.org/0000-0001-7909-1440

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
2018-06-08
End:
2019-09-04
Geographic Region:
Description:Two lakes located in the upper peninsula of Michigan at the University of Notre Dame Environmental Research Center field station.
Bounding Coordinates:
Northern:  46.2539Southern:  46.2508
Western:  -89.5053Eastern:  -89.5015

Project

Parent Project Information:

Title:Cascade Group Spatial Dynamics of HABs Project
Personnel:
Individual: Michael L Pace
Organization:University of Virginia
Email Address:
mlp5fy@virginia.edu
Id:https://orcid.org/0000-0001-5945-6131
Role:PI
Individual: Emily H Stanley
Organization:University of Wisconsin
Email Address:
ehstanley@wisc.edu
Id:https://orcid.org/0000-0003-4922-8121
Role:PI
Individual: Stephen R Carpenter
Organization:University of Wisconsin
Email Address:
steve.carpener@wisc.edu
Id:https://orcid.org/0000-0001-8097-8700
Role:PI
Additional Award Information:
Funder:National Science Foundation Division Of Environmental Biology
Number:1754712
Title:Collaborative Research: Spatial Dynamics, Early Warnings and Harmful Algal Blooms
Additional Award Information:
Funder:National Science Foundation Division Of Environmental Biology
Number:1753854
Title:Collaborative Research: Spatial Dynamics, Early Warnings and Harmful Algal Blooms
Additional Award Information:
Funder:National Science Foundation Division Of Environmental Biology
Number:1440297
Title:LTER: Comparative Study of a Suite of Lakes in Wisconsin

Maintenance

Maintenance:
Description:

Data collection complete

Frequency:
Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n        '
        |___element 'metadata'
        |     |___text '\n            '
        |     |___element 'unitList'
        |     |     |___text '\n                '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'percentSaturation'
        |     |     |     |  \___attribute 'name' = 'percentSaturation'
        |     |     |     |___text '\n                    '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'percent saturation of equilibrium concentration'
        |     |     |     |___text '\n                '
        |     |     |___text '\n            '
        |     |___text '\n        '
        |___text '\n    '

Additional Metadata

additionalMetadata
        |___text '\n        '
        |___element 'metadata'
        |     |___text '\n            '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2022.01.19'
        |     |___text '\n        '
        |___text '\n    '

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