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Cascade Project at North Temperate Lakes LTER – Daily Bloom Data for Whole Lake Experiments 2011 - 2019

General Information
Data Package:
Local Identifier:knb-lter-ntl.413.2
Title:Cascade Project at North Temperate Lakes LTER – Daily Bloom Data for Whole Lake Experiments 2011 - 2019
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Daily measurements of algal bloom variables (chlorophyll, phycocyanin fluorescence, dissolved oxygen, and pH) from the surface waters of Paul, Peter, and Tuesday lakes from mid-May to early September for the years 2011 to 2019, excluding 2012 and 2017. In some years, Peter (2013-2015, 2019) and Tuesday (2013-2015) lakes had inorganic nitrogen and phosphorus added to them daily to cause algal blooms while Paul Lake served as an unmanipulated reference.

Publication Date:2022-01-24
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2011-05-14
End:
2019-09-05

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:
Daily bloom variables
Description:
Daily time series of bloom variables collected from Paul, Peter, and Tuesday lakes
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ntl/413/2/9d812efccf4107979d11e16316000b2e
Name:Daily bloom variables
Description:Daily time series of bloom variables collected from Paul, Peter, and Tuesday lakes
Number of Records:1957
Number of Columns:7

Table Structure
Object Name:tvsews_ts_data.csv
Size:139958 byte
Authentication:3a1ffaea68b8d701e1750a2c947c3898 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 LakeYearDOYBGA_HYLBManual_ChlDO_SatpH
Column Name:Lake  
Year  
DOY  
BGA_HYLB  
Manual_Chl  
DO_Sat  
pH  
Definition:Lake name abbreviationYear of samplingDay Of Year of samplingPhycocyanin concentration from manufacturer-provided calibration curveChlorophyll a concentrationDissolved oxygen percent saturationpH
Storage Type:string  
float  
float  
float  
float  
float  
float  
Measurement Type:nominalratioratioratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeL
DefinitionPaul Lake
Source
Code Definition
CodeR
DefinitionPeter Lake
Source
Code Definition
CodeT
DefinitionTuesday Lake
Source
UnitnominalYear
Typeinteger
UnitnominalDay
Typeinteger
UnitcellsPerMilliliter
Typereal
UnitmicrogramPerLiter
Typereal
UnitpercentSaturation
Typereal
Unitdimensionless
Typereal
Missing Value Code:      
CodeNA
ExplNot collected
CodeNA
ExplNot collected
CodeNA
ExplNot collected
CodeNA
ExplNot collected
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 Vocabularychlorophyll, phytoplankton, 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:

Nutrients were added to Peter (2013-2015, 2019) and Tuesday (2013-2015) lakes to cause algal blooms. Details on nutrient additions (start/end dates, loading rates, N:P ratios) are described in Buelo et al. 2022 (Ecological Applications, link below), Wilkinson et al. 2018 (Ecological Monographs 88: 188-203), and Pace et al. 2017 (Proceedings of the National Academy of Sciences USA 114: 352-357). These publications including supplements should be consulted for details. These lakes have been used for whole-ecosystem experiments over the past decades; see Carpenter and Pace 2018 (Limnology and Oceanography Letters 3(6): 419-427) for an overview.

For chlorophyll-a concentrations, water samples were collected from 0.5m depth daily at the center of each lake. Water samples were filtered in the lab, frozen for at least 24 hours, extracted in methanol, and measured on a fluorometer following methods described in the publications above.

Phycocyanin fluorescence, dissolved oxygen saturation, and pH were measured from a raft at the center of the lake every 5 minutes by automated sensors at a depth of 0.75m. Sensors were calibrated monthly according to manufacturer recommendations. Phycocyanin values are from Hydrolab DS5X data sondes using manufacturer-provided calibration curves and should be interpreted as relative and not exact, physical units. Dissolved oxygen and pH were measured by YSI 6600, Hydrolab DS5X, and YSI EXO3 data sondes. High frequency data were gap filled as described in Wilkinson et al. 2018 (Ecological Monographs 88: 188-203) and averaged to daily measurements.

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).

Description:

This method step describes provenance-based metadata as specified in the LTER EML Best Practices.

This provenance metadata does not contain entity specific information.

Data Source
Cascade project at North Temperate Lakes LTER - Daily data for key variables in whole lake experiments on early warnings of critical transitions, Paul and Peter Lakes, 2008-2011
Description:

This method step describes provenance-based metadata as specified in the LTER EML Best Practices.

This provenance metadata does not contain entity specific information.

Data Source
Cascade Project at North Temperate Lakes LTER High Frequency Sonde Data from Food Web Resilience Experiment 2008 - 2011
Description:

This method step describes provenance-based metadata as specified in the LTER EML Best Practices.

This provenance metadata does not contain entity specific information.

Data Source
Cascade project at North Temperate Lakes LTER - Daily Chlorophyll Data for Whole Lake Nutrient Additions 2013-2015
Description:

This method step describes provenance-based metadata as specified in the LTER EML Best Practices.

This provenance metadata does not contain entity specific information.

Data Source
Cascade project at North Temperate Lakes LTER - High Frequency Data for Whole Lake Nutrient Additions 2013-2015

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:
2011-05-14
End:
2019-09-05
Geographic Region:
Description:Three 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:  -89.4956

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
Additional Award Information:
Funder:National Science Foundation Division Of Environmental Biology
Number:1456151
Title:OPUS: Collaborative Research: Analysis of Cross-Boundary Fluxes, Trophic Cascades and Ecosystem Stability Based on 32 Years of Whole-Lake Experiments
Additional Award Information:
Funder:National Science Foundation Division Of Environmental Biology
Number:1455461
Title:OPUS: Collaborative Research: Analysis of Cross-Boundary Fluxes, Trophic Cascades and Ecosystem Stability Based on 32 Years of Whole-Lake Experiments

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' = 'cellsPerMilliliter'
        |     |     |     |  \___attribute 'name' = 'cellsPerMilliliter'
        |     |     |     |___text '\n                    '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'blue green algae (BGA) cells per milliliter (relative units from\n                        manufacturer calibration curve)'
        |     |     |     |___text '\n                '
        |     |     |___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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