Remote sensing of permafrost thaw lakes

Ice-rich permafrost in the vast lowland permafrost areas in Alaska, Canada and Siberia is characterized by numerous thaw lakes, so-called thermokarst lakes.

The water in these lakes is dammed by ground ice and the lakes are thus sensitive to climatic changes. The growing satellite record over these lakes enables an analysis of time series of changes in lake size and shape over several decades.

The purposes of this study are to map changes in thermokarst lakes over several decades using a suite of satellite data such as from Landsat and Sentinel-2. Potential study sites are in Alaska, Canada, or Siberia. Additionally, lake ice variations can be investigated by satellite radar, in particular, Sentinel-1.

Recommended courses: GEO3515/4515, GEO4520

Published Sep. 24, 2019 9:09 AM - Last modified Sep. 24, 2019 9:09 AM

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60