What’s Going On?


++Important TIRS calibration notice from USGS, Jan. 6, 2014: “Due to the larger calibration uncertainty associated with TIRS band 11, it is recommended that users refrain from relying on band 11 data in quantitative analysis of the TIRS data, such as the use of split window techniques for atmospheric correction and retrieval of surface temperature values.”

We suggest that Band 10 be used in conjunction with an atmospheric model to estimate surface brightness temperature. Our calibration team has found that with current processing these surface brightness temperatures are accurate to within ~±1 K for many 15 – 35° C targets, e.g., growing season vegetated targets.

For more details, please visit the Landsat 8 Data Users Handbook

Apr 25, 2016 • Ice Scours the North Caspian Sea

The Operational Land Imager (OLI) on NASA’s Landsat 8 satellite acquired this large natural-color image showing a wide view of the Caspian Sea around the Tyuleniy Archipelago on April 16, 2016. Ocean scientist Norman Kuring of NASA’s Goddard Space Flight Center found a puzzling feature in the image — lines crisscrossing the North Caspian Sea.

Mar 11, 2016 • Satellites and Shipwrecks: Landsat Satellite Spots Foundered Ships in Coastal Waters

While there is a romantic association of shipwrecks and buried treasure, it is desirable to know where they are located for many other practical reasons.

Mar 11, 2016 • Satellites and Shipwrecks: Landsat Satellite Spots Foundered Ships in Coastal Waters

While there is a romantic association of shipwrecks and buried treasure, it is desirable to know where they are located for many other practical reasons.

Feb 23, 2016 • The Ice Fields of Patagonia

This image, acquired by the Operational Land Imager (OLI) on Landsat 8, shows the glaciers of Sierra de Sangra on Jan. 14, 2015. Snow and ice are blue in these false-color images, which use different wavelengths to better differentiate areas of ice, rock, and vegetation.

Jan 25, 2016 • NASA Provides a Look at Post-Blizzard Snowfall and Winds

NASA satellites obtained a number of different views of the great winter storm that left many snowfall records from Virginia to New York City from January 22 to 24, 2016.

Jan 13, 2016 • Satellite Data Help Australian Ranchers Meet the Rising Demand for Meat in a Changing World

NASA satellites are helping farmers and ranchers meet growing worldwide demand for food, meat and other agricultural products.

Dec 31, 2015 • NASA Awards Letter Contract for Landsat 9 Imager-2

NASA has awarded a sole source letter contract to Ball Aerospace & Technologies Corporation, Boulder, Colo., to build the Operational Land Imager-2 instrument for the Landsat 9 project.