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M. Obersteiner, G. Alexandrov, P. Benítez, I. McCallum, F. Kraxner, K. Riahi, D. Rokityanskiy and Y. Yamagata, “Global Supply of Biomass for Energy and Carbon Sequestration from Afforestation/Reforestation Activities,” Mitigation and Adaptation Strategies for Global Change, Vol. 11, No. 5-6, 2006, pp. 1003-1021. doi:10.1007/s11027-006-9031-z

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• TITLE: Creation of New Global Land Cover Map with Map Integration

  AUTHORS: Koki Iwao, Kenlo Nishida Nasahara, Tsuguki Kinoshita, Yoshiki Yamagata, Dave Patton, Satoshi Tsuchida

  KEYWORDS: Global Land Cover Map, Map Integration, Validation

  JOURNAL NAME: Journal of Geographic Information System, Vol.3 No.2, April 18, 2011

  ABSTRACT: We present here a new approach to the development of a global land cover map. We combined three existing global land cover maps (MOD12, GLC2000, and UMD) based on the principle that the majority view prevails and validated the resulting map by using information collected as part of the Degree Confluence Project (DCP). We used field survey information gathered by DCP volunteers from 4211 worldwide locations to validate the new land cover map, as well as the three existing land cover maps that were combined to create it. Agreement between the DCP-derived information and the land cover maps was 61.3% for our new land cover map, 60.3% for MOD12, 58.9% for GLC2000, and 55.2% for UMD. Although some of the improvements we achieved were not statistically significant, this project has shown that an improved land cover map can be developed and well-validated globally using our method.