Extensive evidence of landform-scale martian geomorphic changes has been acquired in
the last decade, and the number and range of examples of surface activity have increased …

Thick deposits cover broad regions of the Martian mid-latitudes with a smooth mantle;
erosion in these regions creates scarps that expose the internal structure of the mantle. We …

Thermokarst lakes and drained lake basins are widespread in Arctic and sub-Arctic
permafrost lowlands with ice-rich sediments. Thermokarst lake formation is a dominant …

Permafrost coasts in the Arctic are susceptible to a variety of changing environmental factors
all of which currently point to increasing coastal erosion rates and mass fluxes of sediment …

Sublimation-thermokarst landforms result from collapse of the surface when ice is lost from
the subsurface. On Mars, scalloped landforms with scales of decameters to kilometers are …