Further, the annual temperature data was used to calibrate models of soil thermal regimes as a function of climate, providing estimates of both historic and future permafrost thermal regimes at key sites. All modeled sites showed a sharp warming trend from the mid-1970s through present, with some sites expected to no longer have permafrost at 1 meter depth as early as 2040. The map and rate estimates provide land and resource managers, as well as other stakeholders, a much fuller picture of expected landscape change under future climate scenarios. Products 
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