a portion of the natural color mosaic over McMurdo Station
Feb 27, 2007Landsat Mosaic of Antarctica

Feb 27, 2007 • In support of the International Polar Year (2007-2008), the new Landsat Image Mosaic of Antarctica (LIMA) brings the coldest place on Earth alive with a comprehensive view of Antarctica. The USGS, the British Antarctic Survey, and NASA, with funding from the National Science Foundation, are developing the new mosaic along with […]

Feb 22, 2007LDCM USGS Acquisition Strategy for Ground System Segments Released

As of Thursday, February 22, the Landsat Data Continuity Mission USGS Acquisition Strategy for Ground System Segments has been released.  

Feb 21, 2007NASA’s GeoCover 2000 Landsat Product Promotes Geo-commerce Globally

In 2000, NASA sponsored the creation of an orthorectified Landsat 7 mosaic of all of Earth’s landmasses (with the exception of Antarctica) as part of the GeoCover 2000 project. This mosaic has gone on to spur a flurry of geo-commerce as companies from around the world create enhanced versions of this mosaic using the GeoCover […]

Feb 20, 2007USGS Landsat Archive reaches 2,000,000 scenes

From The Landsat Project Update (a USGS publication): “The Landsat archive at USGS EROS is a continuous record that stores data from the very first Landsat mission up to the present day acquisitions of Landsat 5 and Landsat 7. Not all of these data are available to purchase (particularly the oldest), because of issues that […]

Landsat 7 image of Madagascar
Feb 20, 2007Landsat Data Used in Chevron Discovery

Feb 20, 2007 • Recently a landform called a chevron was noted on a Landsat 7 image of Madagascar. These chevrons may have been formed by a mega-tsunami produced 4,800 years ago by a meteorite or comet impact with the Indian Ocean. Tsunami-generated chevrons rarely consist of a single feature but are nested like the […]

Cities from Space
Feb 15, 2007Landsat Data Used to Understand Urban Environments

A new website featuring Landsat images of 77 international cities has been published by the Socioeconomic Data and Applications Center (SEDAC). By analyzing urban reflectance (both visible and infrared) and surface temperatures, SEDAC has established criteria to help distinguish urban land cover from other land cover types. These spatial characterizations of urban land cover extent […]