Dataset Overview

Raw sonde profile data collected from Harp Lake at the site PM approximately every month (up to 5 times a month in May-September) each year, 1976-1992, and from April-November 1993-2016. Parameters sampled include water temperature and dissolved oxygen.

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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



21964 records with 13 fields

Data Availability

Data are available upon request

Preferred Citation

Stockwell JD, Brentrup JA, Bruel R, Doubek JP, Rusak J, Paterson A, OTHERS (2021) Harp Lake raw manual sonde data, 1976-2016. Global Evaluation of the Impacts of Storms on freshwater Habitat and structure of phytoplankton Assemblages (GEISHA) Working Group, FRB Centre for the Synthesis and Analysis of Biodiversity and USGS John Wesley Powell Center. Available online at:

Update Frequency

As needed

Maintenance Plan

Not provided


No links available for this dataset

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Previous Versions
    • Version 2 - 27May2021 (created 2021-05-27 by Jason Stockwell)
    • Version 1 - 27May2021 (created 2021-05-27 by Jason Stockwell)