Dataset: Lake Erie Winter Surveys 2018-2020
Deployment: NB-2019-02

Winter survey data from Lake Erie

Principal Investigator:

George S. Bullerjahn (Bowling Green State University, BGSU)

Co-Principal Investigator:

James T. Anderson (United States Coast Guard, USCG)

Robert Michael McKay (University of Windsor)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Lake Erie Center for Fresh Waters and Human Health (Great Lakes Center)

Data URL:

https://www.bco-dmo.org/dataset-deployment/810611/data

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Description

Methods & Sampling

Dataset acquisition description

See attached Supplemental File "Study Plan for the U.S. Coast Guard Survey of Lake Erie in Winter 2019" and "Study Plan for the U.S. Coast Guard Survey of Lake Erie in Winter 2020".

Data Processing Description

Dataset Processing Description

Notes on winter survey 2020:
- The 2020 was ice-free, so no Ice type data

BCO-DMO Processing:

Version 1
- changed date format from MM/DD/YYYY to YYYY-MM-DD;
- added ISO8601 date/time field;
- replaced spaces with underscores in column headers.

Version2
- Update the dataset with data from the 2019-2020 winter survey, making it a timeseries dataset (version 2 replaces version 1).
- changed date format from MM/DD/YYYY to YYYY-MM-DD;
- added ISO8601 date/time field;
- replaced spaces with underscores in column headers.
- Added survey plan to supplemental docs

Version 3
- On submitters request: divided the cell abundances by 1000 for the 2018-2019 dataset of the following columns: Aulacoseira_islandica, Stephanodiscus_spp, Fragilaria_spp, Skeletonema_spp, centric_small, Nitzschia, Aphanizomenon_flos_aquae, cryptomonads, Gymnodinium_sp, chlorophytes. Did not do this for the columns named Asterionella, Cyanobacteria, Dinoflagellates, Microflagellates sinc they were already correctly in cells/ml.
- Converted the decimal numbers to integers (no decimals) for all the columns metntioned above.

Version 4
- Version with updated locations (lat/lon).

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1840715	NSF Division of Ocean Sciences

Instruments

Stainless Steel Sampling Bottle

Supplied Name: stainless steel sampling bottle

Supplied Description:

Near-surface water is collected using a stainless steel sampling bottle. This approach has been adopted rather than use of Go-Flo bottles to accommodate working in ice.

Instrument Type

Generic Name: Stainless Steel Sampling Bottle

Generic Description:

A stainless steel sampling bottle used for collecting near surface samples (not a GO-FLO bottle)

Turner Designs 700 Laboratory Fluorometer

Supplied Name: TD-700 fluorometer

Supplied Description:

Instrument Type

Generic Name: Turner Designs 700 Laboratory Fluorometer

Acronym: TD-700

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0510/

Generic Description:

The TD-700 Laboratory Fluorometer is a benchtop fluorometer designed to detect fluorescence over the UV to red range. The instrument can measure concentrations of a variety of compounds, including chlorophyll-a and fluorescent dyes, and is thus suitable for a range of applications, including chlorophyll, water quality monitoring and fluorescent tracer studies. Data can be output as concentrations or raw fluorescence measurements.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Station	Station of sample collection	unitless	station
Deployment	Cruise ID	unitless	cruise_id
Alternate_Deployment	(possibly remove this column?)	unitless	cruise_name
Date	Date of sample collection	unitless	date
Time	Time of sample collection	UTC	time
ISO_DateTime_UTC	Date and time (UTC) in ISO8601 format: YYYY-MM-DDTHH:MM:SSZ	UTC	ISO_DateTime_UTC
Lat	Latitude of sample collection	dec degrees N	lat
Long	Longitude of sample collection	dec degrees E	lon
Max_Depth	Maximum depth of water	meters (m)	depth
Sample_Depth	Depth of sample collection	meters (m)	depth
Air_Temp	Air temperature	degrees Celsius (°C)	temp_air
Water_Temp	Water temperature	degrees Celsius (°C)	temp
Ice_cover	Percent ice cover around sampling area	percent (%)	ice_cover
Snow_cover	Percent snow cover on ice around sampling area	percent (%)	snow_cover
Ice_type	Ice type	unitless	ice_cover_type
Ice_thickness	Thickness of ice	centimeter (cm)	ice_thickness
Sp_Cond	Specific conductance	microSiemen per cm (µS cm-1)	specc
Chl_a	Chlorophyll a	microgram per liter (µg L-1)	chl_a
NH3	Dissolved nutrients: Ammonia	milligram per liter (mg L-1)	NH3
CL	Dissolved nutrients: chloride	milligram per liter (mg L-1)	Cl
S04	Dissolved nutrients: sulphate	milligram per liter (mg L-1)	SO4
NO2	Dissolved nutrients: Nitrite	milligram per liter (mg L-1)	NO2
NO3	Dissolved nutrients: Nitrate	milligram per liter (mg L-1)	NO3
SIO2	Dissolved nutrients: silica	milligram per liter (mg L-1)	silica
SRP	Dissolved nutrients: Soluble Reactive Phosphorus	milligram per liter (mg L-1)	SRP
Total_Phosphorus	Particulate nutrients: Total Phosphorus	milligram per liter (mg L-1)	P
Total_Nitrogen	Particulate nutrients: Total Nitrogen	milligram per liter (mg L-1)	NH3
Aulacoseira_islandica	Cell abundance: Aulacoseira islandica	Cells per milliliter (cells/mL)	abundance
Stephanodiscus_spp	Cell abundance: Stephanodiscus spp.	Cells per milliliter (cells/mL)	abundance
Fragilaria_spp	Cell abundance: Fragilaria spp.	Cells per milliliter (cells/mL)	abundance
Skeletonema_spp	Cell abundance: Skeletonema spp.	Cells per milliliter (cells/mL)	abundance
centric_small	Cell abundance: centric (small)	Cells per milliliter (cells/mL)	abundance
Nitzschia	Cell abundance: Nitzschia	Cells per milliliter (cells/mL)	abundance
Aphanizomenon_flos_aquae	Cell abundance: Aphanizomenon_flos_aquae	Cells per milliliter (cells/mL)	abundance
cryptomonads	Cell abundance: cryptomonads	Cells per milliliter (cells/mL)	abundance
Gymnodinium_sp	Cell abundance: Gymnodinium sp.	Cells per milliliter (cells/mL)	abundance
chlorophytes	Cell abundance: chlorophytes	Cells per milliliter (cells/mL)	abundance
Asterionella	Cell abundance: Asterionella	Cells per milliliter (cells/mL)	abundance
Cyanobacteria	Cell abundance: Cyanobacteria	Cells per milliliter (cells/mL)	abundance
Dinoflagellates	Cell abundance: Dinoflagellates	Cells per milliliter (cells/mL)	abundance
Microflagellates	Cell abundance: Microflagellates	Cells per milliliter (cells/mL)	abundance

Database

Contribute Data

Dataset: Lake Erie Winter Surveys 2018-2020
Deployment: NB-2019-02

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Lake Erie Winter Surveys 2018-2020Deployment: NB-2019-02

Dataset acquisition description

Dataset Processing Description

Dataset: Lake Erie Winter Surveys 2018-2020
Deployment: NB-2019-02