April 2014


Mike at Landsat
Apr 30, 2014Spanning the Generations to Bring You the Wide World of Global Science

Two Washington D.C.-based events this month helped introduce Landsat to the public. On April 21 and 22, at an Earth Day celebration in D.C.’s Union Station, visitors explored changes to Earth’s landscapes over time. Using cubes displaying four [...]

Apr 28, 2014Calibration / Climate

"Landsat is currently the only satellite program to provide a consistent, cross-calibrated set of records stretching back over more than four decades, which in turn means the program occupies a key position in the provision of terrestrial [...]

girl in a park
Apr 23, 2014Research Shows Green Space Keeps You From Feeling Blue

[Source: University of Wisconsin-Madison School of Medicine and Public Health] If you start feeling better as spring begins pushing up its tender shoots, you might be living proof of a trend discovered in data from the Survey of the Health of [...]

Bahrain built-up areas 2013
Apr 22, 2014Looking at Urban Expansion in Bahrain

[Source: Carla Schafer, AAAS] Satellite images since 1987 show substantial environmental change on the island nation of Bahrain, including shifting vegetation patterns and more than a doubling in the extent of urbanization, according to a new [...]

EP near Modest, Calif.
Apr 21, 2014Environmental Watch with Landsat Satellites

[Source: Kasha Patel, NASA’s Goddard Space Flight Center] Landsat satellites have monitored Earth’s environment for more than four decades, providing detailed imagery of some of our planet’s most precious ecosystems such as forests, coastlines, [...]

Missouri River flooding
Apr 15, 2014Space Veteran Landsat 7 Marks 15 Years of Observing Earth

[Source: Jon Campbell, USGS] Launched on April 15, 1999, the Landsat 7 satellite has now been observing Earth from outer space for 15 years. The Landsat program is a decades-long NASA and U.S. Geological Survey (USGS) partnership that has [...]

A Triptych of Urban Growth, NLCD 2001-2011
Apr 7, 2014Nation’s Authoritative Land Cover Map New and Improved

[Source: USGS] Just released, the latest edition of the nation’s most comprehensive look at land-surface conditions from coast to coast shows the extent of land cover types from forests to urban areas. The National Land Cover Database (NLCD [...]

Earth Observing satellite constellation
Apr 2, 2014Sustainable Land Imaging Architecture Study (Interim Status) Briefing Held

[Source: NASA Earth Science Projects Division] On April 1, the National Aeronautics and Space Administration (NASA) hosted an event to present to the research and industrial community the interim results and assessments from NASA's Sustainable [...]

Susan Kohler
Apr 1, 2014Upcoming Landsat Activity for Educators

What happens to the Mallard Duck population when prairie potholes disappear? On Tuesday, April 8, 2014 at 6:30 p.m. EDT, Susan Kohler, a NASA Educator and Professional Development Specialist, will be presenting a free 60-minute webinar featuring [...]