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The Landsat Image Mosaic of Antarctica

By Robert Bindschadler, Patricia Vornberger, Andrew Fleming, Adrian Fox, Jerry Mullins, Douglas Binnie, Sara Jean Paulsen, Brian Granneman and David Gorodetzky

Abstract

The Landsat Image Mosaic of Antarctica (LIMA) is the first true-color, high-spatial-resolution image of the seventh continent. It is constructed from nearly 1100 individually selected Landsat-7 ETM+ scenes. Each image was orthorectified and adjusted for geometric, sensor and illumination variations to a standardized, almost seamless surface reflectance product. Mosaicing to avoid clouds produced a high quality, nearly cloud-free benchmark data set of Antarctica for the International Polar Year from images collected primarily during 1999-2003. Multiple color composites and enhancements were generated to illustrate additional characteristics of the multispectral data including: the true appearance of the surface: discrimination between snow and bare ice; reflectance variations within bright snow; recovered reflectance values in regions of sensor saturation; and subtle topographic variations associated with ice flow. LIMA is viewable and individual scenes or user defined portions of the mosaic are downloadable at http://Iima.usgs.gov. Educational materials associated with LIMA are available at http://Iima.nasa.gov

Topics: Glaciology, Data and Information
Publisher: Elsevier
Year: 2008
DOI identifier: 10.1016/j.rse.2008.07.006
OAI identifier: oai:nora.nerc.ac.uk:11398
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  • http://Iima.usgs.gov. (external link)
  • http://Iima.nasa.gov. (external link)
  • https://doi.org/10.1016/j.rse.... (external link)
  • https://doi.org/10.1016/j.rse.... (external link)
  • http://nora.nerc.ac.uk/id/epri... (external link)
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