The top product provides an urbanization map generated from Defense Meteorological Satellite (DMSP) Operational Linescan System data collected from October 1994 to March 1995, showing urban, peri-urban, and non-urban areas. The lower product simulates total annual net primary production for the United States at 1-km spatial resolution. Credit: M.L. Imhoff, NASA/ Goddard Space Flight Center (reproduced from Remote Sensing of Environment with permission from Elsevier Inc.). |
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