Dataset Overview

Raw Sonde profile data collected from Lake Annecy at the Grand Lac station at monthly to biweekly intervals at a range of depth intervals with increasing frequency in later years. Variables include water temperature, dissolved oxygen, pH, and conductivity data.

See Full Dataset Documentation


Please see GEISHA Project home page on FEMC website at or see the GEISHA website hosted by INRAE at

Data Collection Status

Data collection for this dataset has been completed

Start date


End date


Data Availability

Data are available upon request

Preferred Citation

Please contact Orlane Anneville at for access to data set.

Update Frequency

As needed

Maintenance Plan

Not provided


  • The Observatory on LAkes (OLA) database
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    Previous Versions
      • Version 4 - 13Nov2020 (created 2020-11-13 by Jason Stockwell)
      • Version 3 - 30Oct2020 (created 2020-11-13 by Jason Stockwell)
      • Version 2 - V2 (created 2020-07-23 by Jason Stockwell)
      • Version 1 - V1 (created 2020-07-23 by Jason Stockwell)