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Blue Marble satellite imagery now available in Atlas of the Cryosphere

Release Date: September 21, 2007

NASA Earth Observatory's "Blue Marble: Next Generation" satellite imagery is now available in the Atlas of the Cryosphere (under a new Satellite imagery pull-down menu):

This cloud-free satellite image mosaic is offered at 500-meter resolution, providing good graphics for overlaying other map features. Available in the Atlas of the Cryosphere for the months of January and July (in 2004), this allows the user to contrast peak and minimum annual snow coverage. This mosaic is compiled from NASA's Moderate-Resolution Imaging Spectroradiometer (MODIS) spaceborne remote sensing instrument and includes topographic and bathymetric relief shading from the Shuttle Radar Topography Mission (SRTM), GTOPO30, Radarsat Antarctic Mapping Project (RAMP) Digital Elevation Model (DEM) Version 2 (nsidc-0082), and the General Bathymetric Chart of the Oceans (GEBCO).

Northern Hemisphere Blue Marble image for January with coastlines and the North Pole referenced (red cross).

Arctic view of Blue Marble image for January with country borders and labels; northern limit of forests (green line); International Date Line (dashed black line); and the North Pole referenced (red cross).

Southern Hemisphere Blue Marble image for July with coastlines and the South Pole referenced (red cross).

Patagonia view of Blue Marble image for July with country borders and labels.

In addition to accessing these data through the Atlas of the Cryosphere Web interface, they are also available remotely in a variety of formats and map projections through Open Geospatial Consortium (OGC) protocols, as in the following examples:

We welcome your feedback on this project. If you have questions, comments or suggestions, please contact NSIDC User Services at +1.303.492.6199,, or via our online contact form. The development of this map server application was supported by NASA's Earth Observing System (EOS) Program under contract NAS5-03099 and was developed using MapServer, an Open Source development environment for building spatially-enabled internet applications. The Atlas of the Cryosphere was developed by John Maurer. Future updates will continue to be announced on this RSS feed.