April 3, 2017
Utah’s Bryce Canyon is not the deepest canyon in the United States; its largest “amphitheater” of naturally eroded rock drops 240 meters. Arizona’s Grand Canyon, for comparison, measures more than 1,800 meters deep in places. But photographers who visit Bryce Canyon National Park typically aren’t looking for dizzying heights and depth; they’re often trying to capture images of the delicate spires called “hoodoos” that rise from the canyon.
October 18, 2016
Glaciers cover 11 percent of Iceland’s landscape, and the Vatnajökull (Vatna Glacier in English) is 8,000 square kilometers and the largest in Europe. The Landsat-8 satellite captured this false-color image over Iceland’s southeastern coast and the Vatnajökull glacier.
May 23, 2016
According to aerial surveys conducted by the U.S. Forest Service in summer 2015, the recent California drought resulted in millions of dead trees, mainly in the state’s Sierra Nevada mountain regions. NASA researchers found that years of California’s drought conditions, however, have not slowed the regrowth of tree and shrub cover in some areas burned by wildfires.
April 18, 2016
A study recently published in the Remote Sensing of Environment journal used Landsat data from 1984 and 2010 to show how paved surfaces in the Washington, D.C., area have increased dramatically.
March 14, 2016
Using data from the NASA/USGS Landsat 8 satellite, researchers have detected sediment plumes extending as far as four kilometers downstream from shallow shipwreck sites, demonstrating how satellites may be used to locate the watery graves of coastal shipwrecks.
February 29, 2016
Reports and studies of shrinking glaciers and ice sheets in Greenland and Antarctica come in regularly, but an additional ice field can be added to the list: Patagonia, the mountainous area at the southern end of South America shared by Argentina and Chile.
January 4, 2016
The latest off-the-shelf Landsat-8 mosaic, L8M Australia, has just been released by Geoshepherds. Global users can now purchase the product from the Geoshepherds website and download the imagery from Dropbox. Along with providing current imagery from 2013 to 2015, L8M Australia boasts some new features not seen before in a large-scale mosaic product, allowing for
December 15, 2015
Dec. 14, 2015—Chengquan Huang is a Research Professor in the University of Maryland's Geographical Sciences Department. This afternoon at the 2015 AGU Fall Meeting, Huang presented a poster explaining where to find U.S. forests that have been undisturbed for last 25 years. His research relied on Landsat to both find these forests and understand forest
July 20, 2015
July 20, 2015 — Located near the western edge of the Sahara Desert, the Eye of the Sahara is a feature that resembles a large eye when viewed from space. Also known as the Richat Structure or Guelb er Richat, the Eye is a symmetrical dome of eroded sedimentary and volcanic rock. The outermost rings