What’s Going On?


++ Important TIRS calibration notice from USGS, April 25, 2017: “Stray light from far out-of-field has affected the Landsat 8 Thermal Infrared Sensor (TIRS) absolute calibration since launch. An algorithm to correct for this issue was developed and implemented into the processing system in February 2017.”

Sep 6, 2018 • ‘Snow Swamp’ on Canada’s Lowell Glacier

Over a mere four days this summer, snow from the previous winter melted into a pond of slush a glaciologist called a “snow swamp.”

Sep 6, 2018 • ‘Snow Swamp’ on Canada’s Lowell Glacier

Over a mere four days this summer, snow from the previous winter melted into a pond of slush a glaciologist called a “snow swamp.”

Aug 17, 2018 • Unexpected Future Boost of Methane Possible from Arctic Permafrost

New NASA-funded research has discovered that permafrost’s expected gradual thawing and the associated release of greenhouse gases to the atmosphere may actually be sped up by a process called abrupt thawing.

Aug 9, 2018 • Smoke Plumes Tower Over California

On August 6, 2018, the Operational Land Imager (OLI) on Landsat 8 captured this image of a dense column of smoke topped by a pyrocumulus cloud over the Ranch fire.

Aug 9, 2018 • Smoke Plumes Tower Over California

On August 6, 2018, the Operational Land Imager (OLI) on Landsat 8 captured this image of a dense column of smoke topped by a pyrocumulus cloud over the Ranch fire.

Aug 7, 2018 • World of Change: Columbia Glacier, Alaska

The Columbia Glacier descends from an ice field 10,000 feet and into a narrow inlet that leads into Prince William Sound in southeastern Alaska.

Aug 7, 2018 • World of Change: Columbia Glacier, Alaska

The Columbia Glacier descends from an ice field 10,000 feet and into a narrow inlet that leads into Prince William Sound in southeastern Alaska.