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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\".

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Notes on winter survey 2020:
\n- The 2020 was ice-free, so no Ice type data
\n\u00a0

\n

BCO-DMO Processing:

\n

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

\n

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

\n

Version 3
\n- On submitters request: divided the cell abundances by 1000 for the\u00a0 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\u00a0 Asterionella, Cyanobacteria, Dinoflagellates, Microflagellates sinc they were already correctly in cells/ml.
\n- Converted the decimal numbers to integers (no decimals) for all the columns metntioned above.

\n

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

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