February 2007

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

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 [...]

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 [...]

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 [...]

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

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 [...]

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 [...]