August 2012


Aug 20, 2012Landsat Shows Yellowstone Burn Recovery

A combination of lightning, drought and human activity caused fires to scorch more than one-third of Yellowstone National Park in the summer of 1988. Within a year, burn scars cast a sharp outline on the 793,880 acres affected by fire, [...]

forest in Gabon, Africa
Jun 18, 2012Landsat Sets the Standard for Maps of World’s Forests

• NASA's Earth-observing fleet of satellites provides a worldwide and unbiased view with standardized scientific data—information crucial for tracking the health of the world's forests. Countries like Brazil are using data from NASA [...]

Rocky Mountain National Park
Apr 11, 2012Forest Science Requires Long-Term Monitoring and Research

Part of the challenge for understanding how forests are affected by climate change is the need for long-term data. Satellites are a cost-effective way to gather wide-spread information on forests, and the Landsat program has been doing so across [...]

Old growth Oregon coastal forest
Feb 8, 2012EarthSky Interview with Alan Belward: Tracking Changes to Earth’s Forests from Space

Satellite researcher Alan Belward works for the Institute for Environment and Sustainability, part of the European Commission's Joint Research Center in Ispra, Italy. Dr. Belward heads the Land Resource Management Unit, which looks at changes to [...]

Kirtland's Warbler
Dec 9, 2011Satellite Data Shows that Kirtland’s Warblers Prefer Forests After Fire

Kirtland's warblers are an endangered species of lightweight little birds with bright yellow-bellies that summer in North America and winter in the Bahamas. But be it their winter or their summer home, a new study using data from NASA-built [...]

aspen stand suffering from sudden aspen decline
Dec 6, 2011Consequences of Aspen Die-off

Trembling aspen are dying. No tree species in North America has a broader habitat and no other is as large (a single clone can be a hundred acres in size). So their recent widespread mortality, caused by a severe five-year drought and higher [...]

The Balayan-Souroumba region in Guinea
Nov 10, 2011USGS and USAID Partner to Conserve Forests, Water in Africa

Contributor: Vicky Fakan, USAID USAID has long been a major actor helping to conserve Guinea's forest reserves, which replenish many of West Africa's life-sustaining waterways. Now, a recent partnership between USAID and the U.S. Geological [...]

two satellite-derived images of the Wallow Fire
Aug 23, 2011Landsat Image Maps Aid Fire Recovery Efforts

Contributor: Melissa Quijada, NASA Goddard Space Flight Center NASA satellite images regularly map active fires around the world. Once a fire is out, satellite data and maps are also used by scientists to measure and protect the scorched land, [...]

Wallow Fire in Arizona
Jun 9, 2011Arizona Wildfire Sweeps Through Apache National Forest

Source: Jan Nelson, USGS / Rob Gutro, NASA Goddard Space Flight Center The second largest fire in Arizona history, the Wallow Fire is graphically depicted by this Landsat image, taken June 7, which shows burning in the mountains of eastern [...]

Apr 25, 2011Landsat part of SERVIR’s Fire Management System Support in Guatemala

Contributors: Janet L. Anderson, NASA Marshall Space Flight Center In the last few years, fire incidence in Guatemala has increased, damaging and transforming wild areas into degraded forests, savannas and sterile lands. Atrocious events have [...]