March 2015

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 [...]

abandoned farm in Montana
Sep 26, 2014Modeling a Changing American Landscape

Land change is a signature activity of human civilization. Since the dawn of history, people have purposefully converted natural landscapes to human-dominated areas. Typical motivations for land change are cultivation (e.g. slash-and-burn [...]

Chart showing old-growth forest loss in Indonesia, 2000-2012
Jul 30, 2014A Closer Look at Old-Growth Forest Loss in Indonesia

A group of researchers from the University of Maryland, the Indonesian Ministry of Forestry, and the World Resource Institute joined forces to remedy the lack of consensus about the amount of old-growth forest clearing occurring in Indonesia.

Map of nations with land cover mapping satellites
May 30, 2014Insights Provided by New Compendium of Land Cover Mapping Satellites

A compendium of civilian satellites with the potential to image global land surfaces has been compiled by Alan Belward and Jon Skøien from the Land Resource Management Unit of the European Commission’s Institute for Environment and [...]