The Landsat Image Mosaic of Antarctica

Remote Sensing of Environment
By: , and 

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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://lima.usgs.gov. Educational materials associated with LIMA are available at http://lima.nasa.gov.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title The Landsat Image Mosaic of Antarctica
Series title Remote Sensing of Environment
DOI 10.1016/j.rse.2008.07.006
Volume 112
Issue 12
Year Published 2008
Language English
Publisher Elsevier
Contributing office(s) Earth Resources Observation and Science (EROS) Center
First page 4214
Last page 4226
Other Geospatial Antarctica
Online Only (Y/N) N
Additional Online Files (Y/N) N