Image from TERRA
Tue, 18 Apr 2023 16:24 EDT

The Valley of Ten Thousand Smokes, located in Katmai National Park, forms a unique and ashen landscape. Encircled by volcanoes – both active and inactive – it has served as a perfect collection area for huge amounts of volcanic ash.

Image from TERRA
Tue, 20 Sep 2022 10:30 EDT

Water departments in the West are using maps and models originally created by a NASA team to help track water.

Image from TERRA
Thu, 15 Sep 2022 10:00 EDT

NASA and Google broadened an existing partnership to help local governments improve their monitoring and prediction of air quality for better decision making.

Fall Colors Arriving

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NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response Team at NASA GSFC. Caption by Mike Carlowicz.

A few days after autumn showed up on the calendar in the Northern Hemisphere, it showed up on the landscape of North America. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured these views of fall colors around the Great Lakes (September 26) and New England (September 27, 2014). The brown and orange shades are most pronounced in the Upper Peninsula of Michigan, northern Wisconsin, upstate New York, New Hampshire, Vermont, Maine, and southern Quebec and Ontario. You can also see faint traces of phytoplankton blooms in the lakes and offshore in the North Atlantic.

The changing of leaf color in temperate forests involves several causes and reactions, but the dominant factors are sunlight and heat. Since temperatures tend to drop sooner and sunlight fades faster at higher latitudes, the progression of fall color changes tends to move from north to south across North America from mid-September through mid-November. Read more

See an animation of the changing colors on this article from the Huffington Post.

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