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 [...]

Fafen Upper Valley in Ethiopia
Jan 25, 2012Combating drought in the Horn of Africa

• UNESCO began mapping groundwater this January in the drought-stricken Horn of Africa, in order to bring the population a sustainable water supply. Drought has caused the region's worst famine in 60 years, with 12 million people at risk of [...]

geographic reference map
Jul 28, 2011Landsat-Based Maps Aid German Relief Work in East Africa

Eastern Africa is in the grip of the worst drought it has seen in 60 years and the region is facing severe famine. In Somalia alone, it is estimated that 3.7 million people have been affected by the drought. The uncertain political situation [...]

World Water Day logo
Mar 22, 2011Thirst for Knowledge: NASA Eyes World’s Water

As the world moves toward adding a few more billion people in the coming decades, many people who keep an eye on the horizon find themselves worried about water. Drinking water, water for irrigation, water for industry. Getting clean water is [...]

rice paddies
Nov 18, 2009How Wetlands and Rice Paddies Affect the Spread of Bird Flu

In the mid-1990s, highly pathogenic avian influenza (bird flu) emerged in southern China. Severe outbreaks in the winter of 2005-2006 spread the virus, designated H5N1, across Asia, Europe, and Africa, killing hundreds of people, thousands of [...]

Aug 10, 2008Landsat Key in New UNEP Atlas of Africa’s Environmental Change

Glacial Retreat to Rapid Urbanization Chronicled in Landmark Satellite Report to Africa's Environment Ministers Source: United Nations Environment Programme Africa's rapidly changing environmental landscape, from the disappearance of glaciers in [...]

NASA Data Helps Pinpoint Impacted Populations in Disaster Aftermath
Jun 12, 2008NASA Data Helps Pinpoint Impacted Populations in Disaster Aftermath

Contact: Gretchen Cook-Anderson, NASA/GSFC When two catastrophic natural disasters struck within days of each other in May 2008, disaster relief, humanitarian aid, and health officials, as well as members of the news media tapped into a unique [...]

Pilot Jim Demers (left) and researchers John Lekki (center) and Norman Prokop (right)
Aug 28, 2007Sensor Synergy: Great Lakes Algae Monitoring

A rare bird has been flying over the Great Lakes recently, and it isn't migrating or searching for prey. This hawkeyed species is a Learjet aircraft outfitted with an advanced imaging system. Engineers at NASA's Glenn Research Center in [...]

Apr 12, 2007U.S. Uses Landsat Satellite Data To Fight Hunger, Poverty

Remote sensing is a critical tool for agriculture, land use worldwide Source: Cheryl Pellerin, America.gov, U.S. Department of State Over the 35 years that U.S. Landsat Earth-observation satellites have collected images of the planet from space, [...]

cattle feedlots
Apr 6, 2006Collaboration for Cancer Research

Contributor: Susan Maxwell Human health scientists have associated cancer, neurological disorders, and adverse reproductive outcomes with exposure to agricultural chemicals. Lack of information on historical environmental exposure to these Read [...]

Assaf Anyamba and Major Michael Sardelis investigate possible locations of dambos in Yemen where mosquitoes may be carrying Rift Valley Fever.
Apr 6, 2006Mapping Rift Valley Fever Outbreak Risk Areas

Contributors: Assaf Anyamba with Kenneth J. Linthicum, Compton J. Tucker, Robert Mahoney, and Randall During the period of August to September 2000, the Yemen Ministry of Agriculture and Irrigation, and the Ministry of Health reported the [...]