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Start Over You searched for: Year 2001 Remove constraint Year: 2001 Resource Class Datasets Remove constraint Resource Class: Datasets Subject Human settlements Remove constraint Subject: Human settlements

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2001. National Geophysical and Solar-Terrestrial Data Center. This map shows light sources from human settlements around the world observed during 2001. The Defense Meteorological Satellite Program (DMSP) Oper... National Geophysical and Solar-Terrestrial Data Center.