July 2014

Landsat-derived map of field use
Jul 23, 2014Landsat’s Role in Water Resource Management

[By Larisa Serbina and Holly M. Miller, USGS] Water availability and allocation are issues gaining a great deal of attention, particularly in arid climates. Increases in population growth and recent droughts bring urgency to measuring and [...]

Jul 1, 2014Water

"In the world of water resource management, Landsat has played a key role in providing objective and continuous data for the United States, particularly in the arid west. Water-related benefits of Landsat imagery are also reaped far beyond the [...]

USGS Landsat Water Report
Jul 1, 2014Landsat and Water—Case Studies of the Uses and Benefits of Landsat Imagery in Water Resources

[Source: USGS] The Landsat program has been collecting and archiving moderate resolution earth imagery since 1972. The number of Landsat users and uses has increased exponentially since the enactment of a free and open data policy in 2008, which [...]

aquaculture operation
May 28, 2014Losing Tidal Flats Around the Yellow Sea

May 28, 2014 • Using Landsat time series data, a group of Australian and British ecologist have found that the Yellow Sea has lost 28% of its tidal flats in the last three decades. The Yellow Sea lies east of mainland China and west of the [...]

Tad Pfeffer
May 7, 2014Nearly 200,000 Glaciers Mapped for Better Sea Level Rise Estimates

[Source: CU-Boulder] An international team led by glaciologists from the University of Colorado Boulder and Trent University in Ontario, Canada has completed the first mapping of virtually all of the world’s glaciers—including their locations [...]

Napa Valley Vineyard
Mar 11, 2014The Grapes of Landsat

[By Matt Davenport for the AGU GeoSpace blog] California’s persistent drought is forcing grape growers to keep a more-attentive-than-normal eye on their vines, as water shortages and elevated temperatures alter this year’s growing season. “This [...]

Landsat bathymetry
Feb 11, 2014Landsat and the Sea

One year ago today, Landsat 8 blasted off from California’s Vandenberg Air Force Base and arched over the shimmering Pacific on its way into orbit. Landsat 8’s main sensor, the Operational Land Imager (OLI), is the latest model in the long line [...]

Feb 4, 2014NASA Maps Earth’s Croplands from Space

[Source: Kate Ramsayer, NASA Goddard] It takes a lot of land to grow food for the world's seven billion people. About a third of Earth's terrestrial surface is used for agriculture. And about a third of that, in turn, is used to grow crops. Now, [...]

Child looking at Landsat image
Sep 27, 2013Mapping the World with Landsat

Speeding around the Earth at 16,800 mph (27,000 kph), two Landsat satellites are quietly, expertly watching and recording changes in Earth’s lands from space. They are gathering data for people to make maps–all kinds of wonderful maps–of our [...]

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 [...]