Great Lakes Environmental Research Laboratory (GLERL) Lake Ice Coverage

Search the Data

Select Variables:
Longitude (degrees_east)




Latitude (degrees_north)




Time (UTC) Dates must be formatted as either YYYY or a full ISO date string (YYYY-MM-DDTHH:MM:SSZ)




HTML = HyperText Markup Language. This option will display data in a structured table (with variable name and units as headings) in the user’s web-browser.

CSV = Comma Separated Values. This option will create output as a delimited text file with values separated by commas. The data is not viewable within the web-browser when this data export option is selected. The web-browser will typically offer the user the option of opening the file in MS Excel or similar spreadsheet program for display.

geoJSON = JavaSript Object Notation. This option will display the geographic-based data in the JSON format within a window in the user’s web-browser.

nc = NetCDF or Network Common Data Format. This option will download the desired data as a NetCDF file. The data is not viewable within the web-browser when this data export option is selected. The user will need to save the file to disk in order to read the data in a third-party software that supports this format.