April 2014


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 [...]

Marx's Study area
Oct 30, 2013Using Landsat to Detect Human Rights Violations

Over 2500 villages were destroyed during six years of conflict in Darfur between 2002 and 2008. Dr. Andrew Marx, a 2013 fellow at the Center for the Prevention of Genocide at the U.S. Holocaust Memorial Museum, has found that this type of [...]

UNESCO photo of water discovered in Kenya
Sep 12, 2013Vast Water Reserves Found in Drought-Prone Northern Kenya

Large underground water reserves have been found in Turkana, one of Kenya’s driest and poorest regions. The discoveries were made by the natural resources exploration firm, Radar Technologies International, during the course of a survey of [...]

Leonard Lopate
Aug 8, 2013Environmental Monitoring with Public Domain Satellites

WNYC's Leonard Lopate talks with SkyTruth president, John Amos, about using public domain satellite imagery, such as Landsat, to monitor the environment. SkyTruth uses all types of satellite imagery to monitor environmental changes and [...]

Burning fields in Indonesia
Jul 30, 2013Using Landsat 8 to Locate Fires in Indonesia

In June, air pollution over Singapore and Malaysia spiked as forests in neighboring Sumatra (Indonesia) burned. Using NASA's daily fire alerts and official national maps, the fires were located in the vicinity of oil palm and acacia tree [...]

May 9, 2013Landsat Images Provide the Gold Standard for New Earth Applications

Images from Landsat satellites provided free to the public by the Department of the Interior's U.S. Geological Survey were the starting points for “a new breakthrough” reported today by Time and announced on the Official Google Blog. Using its [...]

Jan 22, 2013What is the Economic Value of Satellite Imagery?

Does remote-sensing information, such as that from Landsat and similar Earth-observing satellites, provide economic benefits to society, and can this value be estimated? Using satellite data for northeastern Iowa, U.S. Geological Survey [...]

Cladophora on shore of N. Manitou Island
Sep 26, 2012Using Landsat to Map Cladophora in the Great Lakes

Cladophora, a nuisance, native green algae that grows attached to solid substrate in all of the Laurentian Great Lakes, has expanded its range partially due to invasive quagga and zebra mussels. During significant storm events it detaches and [...]

Shemya Island
Aug 29, 2012Analyzing Landsat to Mitigate Bird/Aircraft Collisions

The presence of birds near an aircraft runway is a constant concern. Although deadly crashes are rare, a bird strike to the windshield can cause visibility issues for pilots, and strikes to jet engines can cause engine failure. Flocks of birds [...]

girl eating corn
Feb 1, 2012It Takes a Satellite To Feed the World

Source: Charles L. Walthall, USDA Agricultural Research Service Forum It's ironic that just when Earth-monitoring satellites are needed more than ever to address the food and freshwater demands of a burgeoning global human population, we face an [...]