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Itasca Biological Station Lake Ice Cover Data

General Information
Data Package:
Local Identifier:edi.1590.2
Title:Itasca Biological Station Lake Ice Cover Data
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Established in 1907, the Itasca Biological Station and Laboratories is a field station focused on conducting and promoting biological and ecological research. Part of this mission consists of long-term ecological monitoring efforts taken on by station staff. This dataset is one of such long-term efforts. Station staff tracked and recorded dates when lakes completely froze each winter (ice on, recorded when >99% of the lake was covered) as well as when they completely thawed each spring (ice off, recorded when >99% of the lake was open). Monitoring focused on Lake Itasca, with several other lakes in the region being added as various staff became associated with the Itasca Station.

Publication Date:2024-03-01
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
1929-04-19
End:
2023-11-28

People and Organizations
Contact:UMN Itasca Biological Station and Laboratories [  email ]
Creator:Simons, Victoria F. (UMN Itasca Biological Station and Laboratories, Station Scientist)

Data Entities
Data Table Name:
IBSL Ice Data MASTER – EDI version
Description:
The Itasca Biological Station and Laboratories has monitored several lakes in the Itasca region of Northern Minnesota to track dates of annual ice freeze/thaw (alternatively, "ice on/off").
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1590/2/4f3e0a57891810fa05db82cdf7fa2086
Name:IBSL Ice Data MASTER – EDI version
Description:The Itasca Biological Station and Laboratories has monitored several lakes in the Itasca region of Northern Minnesota to track dates of annual ice freeze/thaw (alternatively, "ice on/off").
Number of Records:758
Number of Columns:10

Table Structure
Object Name:IBSL Ice Data MASTER – EDI version.csv
Size:57292 byte
Authentication:6360b1b256e3c4d2bbd62f3ac1472341 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 Water BodyMN DNR Lake NumberIce Up DateIce Up Day of YearIce Out DateIce Out Day of YearIce Cover daysYear freeze upDecimal Degrees NDecimal Degrees W
Column Name:Water Body  
MN DNR Lake Number  
Ice Up Date  
Ice Up Day of Year  
Ice Out Date  
Ice Out Day of Year  
Ice Cover days  
Year freeze up  
Decimal Degrees N  
Decimal Degrees W  
Definition:The name of the lake or pond that was monitored.The MN DNR assigned lake ID number.The date that the lake was frozen.The Julian date that the lake was frozen.The date that the lake ice thawed.the Julian date that the lake ice thawed.The total number of days the lake had ice cover.The year that ice in (freeze) was observed.The northern coordinate of the lake location.The western coordinate of the lake location.
Storage Type:string  
string  
dateTime  
float  
dateTime  
float  
float  
float  
float  
float  
Measurement Type:nominalnominaldateTimeratiodateTimeratioratioratioratioratio
Measurement Values Domain:
Definitiontext
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Code15000100
DefinitionLaSalle Lake (Upper)
Source
Code Definition
Code15000500
DefinitionLake Ozawindib
Source
Code Definition
Code15001000
DefinitionElk Lake
Source
Code Definition
Code15001600
DefinitionLake Itasca
Source
Code Definition
Code15005700
DefinitionLong Lake
Source
Code Definition
Code15005800
DefinitionHeart Lake
Source
Code Definition
Code29028900
DefinitionMary Lake
Source
Code Definition
Code29029300
DefinitionTwin Lakes
Source
Code Definition
Code29029400
DefinitionDeming Lake
Source
Code Definition
Code29029500
DefinitionJosephine Lake
Source
Code Definition
Code29030900
DefinitionLaSalle Lake (Lower)
Source
Code Definition
Code29061000
DefinitionArco Lake
Source
FormatYYYY-MM-DD
Precision
UnitJulian Day
Typereal
FormatYYYY-MM-DD
Precision
UnitJulian Day
Typereal
Unitdays
Typereal
UnitYear
Typeinteger
Unitdecimal degrees north
Typereal
Unitdecimal degrees west
Typereal
Missing Value Code:  
CodeN/A
ExplNo lake number is associated with this water body.
                
Accuracy Report:                    
Accuracy Assessment:                    
Coverage:                    
Methods:                    

Data Package Usage Rights

This data package is released to the "public domain" under Creative Commons CC0 1.0 "No Rights Reserved" (see: https://creativecommons.org/publicdomain/zero/1.0/). It is considered professional etiquette to provide attribution of the original work if this data package is shared in whole or by individual components. A generic citation is provided for this data package on the website https://portal.edirepository.org (herein "website") in the summary metadata page. Communication (and collaboration) with the creators of this data package is recommended to prevent duplicate research or publication. This data package (and its components) is made available "as is" and with no warranty of accuracy or fitness for use. The creators of this data package and the website shall not be liable for any damages resulting from misinterpretation or misuse of the data package or its components. Periodic updates of this data package may be available from the website. Thank you.

Keywords

By Thesaurus:
(No thesaurus)biological field station, Itasca, Minnesota
LTER Controlled Vocabularylong term monitoring, lakes, ice, winter, weather

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:

When ice cover began forming on lakes in the fall/winter, staff would drive to various lake locations and visually monitor the progression of ice coverage. This was done as needed based on weather conditions, with visits occurring daily when ice coverage approached 100%. Due to restricted visibility in some areas, the ice on date was recorded if at least 99% of the lake surface was frozen.

In the spring, monitoring began when open water could be seen on lakes in the region. Staff drove to lakes and visually observed ice cover, with visits occurring up to twice per day (once in the morning, and once in the afternoon) when weather produced rapid melting conditions. When at least 99% of the lake surface was open water, ice off date was recorded.

Note that in 2023, trail cameras were deployed along lakeshores to aid in ice on/off detections. Cameras were programmed to take a photo once every hour from sunrise to sunset. Visual observations were still used to monitor ice on/off dates.

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: Victoria F. Simons
Organization:UMN Itasca Biological Station and Laboratories
Position:Station Scientist
Email Address:
simo0948@umn.edu
Id:https://orcid.org/0000-0001-9757-2205
Contacts:
Organization:UMN Itasca Biological Station and Laboratories
Email Address:
ibsl@umn.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
1929-04-19
End:
2023-11-28
Geographic Region:
Description:Several freshwater lakes within and around Itasca State Park in northern Minnesota were monitored.
Bounding Coordinates:
Northern:  47.346114Southern:  47.161565
Western:  -95.309518Eastern:  -95.156335

Project

Parent Project Information:

Title:Long-term Lake Ice Monitoring
Personnel:
Individual: Victoria F. Simons
Organization:UMN Itasca Biological Station and Laboratories
Position:Station Scientist
Email Address:
simo0948@umn.edu
Id:https://orcid.org/0000-0001-9757-2205
Role:Observer and Data Recorder

Maintenance

Maintenance:
Description:

Data collection is ongoing, with new data being added every spring.

Frequency:annually
Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'unitList'
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'Julian Day'
        |     |     |     |  \___attribute 'name' = 'Julian Day'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'days'
        |     |     |     |  \___attribute 'name' = 'days'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'Year'
        |     |     |     |  \___attribute 'name' = 'Year'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'decimal degrees north'
        |     |     |     |  \___attribute 'name' = 'decimal degrees north'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'decimal degrees west'
        |     |     |     |  \___attribute 'name' = 'decimal degrees west'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n            '
        |     |     |___text '\n         '
        |     |___text '\n      '
        |___text '\n   '

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2024.02.21'
        |     |___text '\n      '
        |___text '\n   '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

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