Lake Erie Ice from stations occupied during Winter 2012, 2013, and 2016 from USCGC and CCGS vessels from the Laurentian Great Lakes (mainly Lakes Huron, Michigan, Erie and connecting waterways) (Lake Erie Ice project)

Website: https://www.bco-dmo.org/dataset/4044
Data Type: Cruise Results
Version: 1
Version Date: 2017-08-08

Project
» RAPID Response to an extreme low ice year on Lake Erie (Lake Erie Ice)

Program
» Laurentian Great Lakes Ecosystem Studies (Laurentian Great Lakes Ecosystem Studies)
ContributorsAffiliationRole
McKay, Robert MichaelBowling Green State University (BGSU)Principal Investigator, Contact
Bullerjahn, George S.Bowling Green State University (BGSU)Co-Principal Investigator
Morris, Paul FBowling Green State University (BGSU)Co-Principal Investigator
Gegg, Stephen R.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager
Switzer, MeganWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Coverage

Spatial Extent: N:46.49865 E:-78.94251 S:41.52567 W:-85.71513
Temporal Extent: 2012-01-04 - 2016-03-04

Dataset Description


Methods & Sampling

Generated by BCO-DMO staff from spreadsheets contributed by Robert McKay


Data Processing Description

Generated by BCO-DMO staff from spreadsheets contributed by Robert McKay


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Data Files

File
STATIONS.csv
(Comma Separated Values (.csv), 7.64 KB)
MD5:f2c3868dbae9f6a5c1e90e2f3beb0963
Primary data file for dataset ID 4044

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Parameters

ParameterDescriptionUnits
StationStation Number unitless
Station_ECStation identifier provided by Environment Canada for "process" stations that are routinely occupied during EC surveys. All other stations were sampled while "underway" and were not provided unique EC identifiers. unitless
Date_LocalDate Local YYYYMMDD
Time_localTime Local HHMMSS
LatStation Latitude; South is negative decimal degrees
LonStation Longitude; West is negative decimal degrees
Station_Depth_FeetStation Depth in Feet feet
Station_Depth_MetersStation Depth in Meters meters
Platform_Yearunitless

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Deployments

NEAHBAY_Winter2012

Website
Platform
USCGC NEAH BAY
Start Date
2012-01-04
End Date
2012-04-05
Description
Note: There is no official cruise id.  "NEAHBAY_Winter2012" was generated by BCO-DMO staff. The 2012 winter Coast guard ice-breaking operation on Lake Erie is called “Operation Coal Shovel” which has been assigned as a primary synonym for the cruise. The locations list was generated from the station locations contributed with the data. For additional information see:Collecting Winter Data on U.S. Coast Guard IcebreakersStudy Plan for the U.S. Coast Guard Survey of Lake Erie in Winter 2011-12

Methods & Sampling
For additional information see:Collecting Winter Data on U.S. Coast Guard IcebreakersStudy Plan for the U.S. Coast Guard Survey of Lake Erie in Winter 2011-12

MACKINAW_Winter2013

Website
Platform
USCGC MACKINAW
Start Date
2013-01-29
End Date
2013-02-02
Description
Note: There is no official cruise id.  "MACKINAW_Winter2013" was generated by BCO-DMO staff. The 2013 winter Coast guard ice-breaking operation on Lake Erie is called “Operation Taconite” which has been assigned as a primary synonym for the cruise. The locations list was generated from the station locations contributed with the data. For additional information see:Collecting Winter Data on U.S. Coast Guard IcebreakersStudy Plan for the U.S. Coast Guard Survey of Lake Erie in Winter 2012-13

Methods & Sampling
For additional information see:Collecting Winter Data on U.S. Coast Guard IcebreakersStudy Plan for the U.S. Coast Guard Survey of Lake Erie in Winter 2012-13

GRIFFON_2013-01-801

Website
Platform
CCGS GRIFFON
Start Date
2013-02-18
End Date
2013-02-23
Description
The locations list was generated from the station locations contributed with the data. For additional information see:Study Plan for the Canadian Coast Guard Survey of Lake Erie in Winter 2012-13

Methods & Sampling
For additional information see:Study Plan for the Canadian Coast Guard Survey of Lake Erie in Winter 2012-13

GRIFFON_2016046-001-008

Website
Platform
CCGS GRIFFON
Report
Start Date
2016-02-15
End Date
2016-02-19
Description
PURPOSE: Characterize the spatial and vertical distribution in Lake Erie of i) benthic seed populations ii) physico-chemical parameters (temperature, conductivity etc.) and major nutrients in water column iii) primary productivity, carbon processing and bacterial activity iv) algal nutrient and physiological status; toxins v) phytoplankton, picoplankton and algal taxa; samples for DNA barcoding and metagenomic analyses

NEAHBAY_Winter2016

Website
Platform
USCGC NEAH BAY
Report
Start Date
2016-01-14
End Date
2016-03-04


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Project Information

RAPID Response to an extreme low ice year on Lake Erie (Lake Erie Ice)


Coverage: Laurentian Great Lakes


Description from NSF award:
Winter presents a logistical obstacle to our understanding of lake ecosystems. A recent collaboration of the PIs with the Canadian- and U.S. Coast Guards and their icebreaking programs has facilitated annual winter surveys of Lake Erie since 2007. Conducted during times of expansive ice cover, these surveys have documented high phytoplankton biomass, often in discrete formations and dominated by a filamentous diatom, Aulacoseira islandica. Whereas Lake Erie is characterized by a high annual median ice cover [AMIC] consistent with its relative shallow bathymetry, it also shows extremes in maximum ice extent ranging from ~10% in low ice years to > 99% in high ice years. While maximum ice cover on Lake Eries has reached ~95% each winter from 2007-2010, the winter of 2011-12 is shaping up much differently, with unseasonably warm conditions and almost no ice cover.

The PIs will use a Rapid Response Research (RAPID) grant to investigate the changes in phytoplankton community structure and function during this warm and practically ice-free winter. Specifically, they will test the hypothesis that the warm monomictic mixing regime that occurs in the absence of expansive ice cover suppresses diatom growth in Lake Erie's central basin. This project will provide synoptic data on the concentration of chlorophyll a in near-surface waters at stations throughout Lake Erie during the winter season.

Suppression of abundant winter diatom growth may have important implications for events occurring during summer in Lake Erie. The documentation of abundant winter diatom growth, combined with low measured rates of bacterial decomposition results in net accumulation of algae on the lake bottom. As summer progresses and the hypolimnion warms, bacterial remineralization of the exported diatom biomass accelerates, depleting the hypolimnion of oxygen. These observations are consistent with a new hypothesis on lake function, namely that winter phytoplankton production drives Lake Erie summer hypoxia. Oxygen depletion in Lake Erie's central basin is well documented with effects ranging from enhanced internal nutrient loading to loss of habitat for macrofauna. At its full expanse, the area can exceed 10,000 km2, comparable in surface area to the low oxygen 'dead zone' in the Gulf of Mexico. Thus, deviation from the high phytoplankton biomass accumulation associated with 'typical' winter ice cover may be reflected in higher hypolimnetic dissolved oxygen measured during summer. This research opportunity can help define environmental changes that might be expected in a warming climate.

For additional information see:
Collecting Winter Data on U.S. Coast Guard Icebreakers
Study Plan for the U.S. Coast Guard Survey of Lake Erie in Winter 2011-12



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Program Information

Laurentian Great Lakes Ecosystem Studies (Laurentian Great Lakes Ecosystem Studies)


Coverage: Laurentian Great Lakes


A series of studies concerned with the chemistry and biology of the Laurentian Great Lakes.  These different studies share a focus on the dynamics of organic pools of carbon, nitrogen and phosphorus, and the stoichiometric linkages among these elements. At different times, work also has focused on trace metal dynamics and interactions with biota, the rates of primary production and herbivory, rates and patterns of primary productivity, and the century-long, steady trend of increasing nitrate in Earth's largest lake by area.  Microbial populations have been investigated and linked to these chemical properties.

This Program was created by BCO-DMO staff to bring various Laurentian Great Lakes Research projects under one umbrella for improved discovery and access.

Dates: 1998 - 2014
Funding: NSF/OCE and Minnesota Sea Grant



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Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)

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