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Category: Cryosphere

The Evolution of a Wisconsin Winter

Spring has clearly sprung in the blog’s home base of Madison, Wisconsin, in the upper midwestern United States, with air temperatures and the activity of both animals (like migratory birds) and people (like joggers) showing that the winter of 2024-2025 is no more. The memories of the cold, icy conditions... Read More

Ice leads in the eastern Beaufort Sea

A sequence of Suomi-NPP VIIRS Visible images (above) showed the formation of large ice leads in the eastern Beaufort Sea — as well as the growth of a polynya adjacent to the coast near the Alaska/Yukon border — during the 5-day period from 07-11 March 2025.Suomi-NPP VIIRS Shortwave Infrared images... Read More

Interpreting IR imagery in bitter cold

The dominant story in the continental United States on February 18 is the significant winter weather that is impacting nearly every state east of the Rocky Mountains. A glance at this morning’s National Weather Service alert map shows a continuous band of cold weather warnings from the Canadian border down... Read More