July 2015


Percent loss of Turkey's glaciers
Jul 2, 2015Turkish Glaciers Shrink By Half

Researchers and citizens have known for some time that Turkey’s glaciers are shrinking. Now scientists have calculated the losses and found that more than half of the ice cover in this mountainous country has vanished since the 1970s.

calved icebergs from Jakobshavn Isbrae glacier
Jun 1, 2015Ebb & Flow of Greenland’s Glaciers: New Study Could Improve Understanding of Greenland’s Contribution to Sea-level Rise

In northwestern Greenland, glaciers flow from the main ice sheet to the ocean in see-sawing seasonal patterns. The ice generally flows faster in the summer than in winter, and the ends of glaciers, jutting out into the ocean, also advance and [...]

RSESTeP students
May 26, 2015A Reward for Teachers: Remote Sensing Earth Science Teacher Program (RSESTeP)

As part of a NASA-associated program, Michael Geiswhite and 28 of his 11th grade students from North Schuylkill Junior-Senior High School studied a coal mine fire that ignited in 1962 in Centralia, PA and forced the permanent exodus from their [...]

Server farm at Google
Mar 26, 2015Big Data Helps Scientists Dig Deeper

In 2008, the U.S. Geological Survey took 3.6 million images acquired by Landsat satellites and made them free and openly available on the Internet.

Fremont Lake Basin
Mar 23, 2015Historical Satellite Images Reveal Snow is Melting Earlier in Wyoming

A NASA study of a basin in northwestern Wyoming revealed that the snowmelt season in the area is now ending on average about sixteen days earlier than it did from the 1970s through the 1990s.

DNC deforestation
Feb 25, 2015Landsat Shows Felling of Tropical Trees Has Soared

The rate at which tropical forests were cut, burned or otherwise lost from the 1990s through the 2000s accelerated by 62 percent, according to a new study which dramatically reverses a previous estimate of a 25 percent slowdown over the same [...]

Elephant Foot Glacier
Feb 18, 2015Landsat Goes Over The Top: A Long View of the Arctic

On February 11, 2013, the Landsat 8 satellite rocketed into space to extend a four-decade legacy of Earth observations. A few months after launch, we published a composite of images that spanned 9,000 kilometers of land from Russia to South [...]

Landsat data stack
Dec 9, 2014Unleashing Climate Data and Innovation for more Resilient Ecosystems

Ecosystems provide vast services and benefits to humankind: food and water that is needed for survival; nutrients and other natural products that fuel farms and industries; natural controls on many pests and pathogens; storage of carbon safely [...]

L8 image of Juneau, Alaska
Oct 30, 2014Over 20 Million Landsat Scenes Downloaded

Since 2008, all Landsat data—archived and newly acquired—have been available for free download. On September 16, 2014, users worldwide downloaded over 14,000 scenes from the servers at the USGS Earth Resources Observation and Science (EROS) [...]

boat in the Sundarbans
Oct 29, 2014Mapping South Asia’s Mangroves

Along the sea’s edge in Bangladesh, India, Pakistan, and Sri Lanka, the dense coastal population lives largely in symbiosis with the region’s mangrove forests. Mangroves—a vast network of intertidal trees and shrubs with their characteristic [...]