Cataloguing metadata information: Title >Global Map Vegetation layer- Global Percent Tree Cover Edition >1 (Global Version) Issue identification >PTC 1.0 Initiative identification information: Initiative identification name >Global Map Reference date >200806 Responsible party information: Responsible party organization name >Geographical Survey Institute, Japan Responsible party role code >5 Postal address >Geographical Survey Institute, Kitasato 1 City > Tsukuba Administrative area >Ibaraki Postal code >305-0811 Country >JAPAN Online resource linkage >http://www.gsi.go.jp/ Responsible party organization name >Center for Environmental Remote Sensing (CEReS), Chiba University Responsible party role code >5 Postal address >1-33 Yayoi-cho, Inage-ku City >Chiba Administrative area >Chiba Postal code >263-8522 Country >JAPAN Online resource linkage > http://www.cr.chiba-u.jp/index.html Responsible party organization name >Secretariat of ISCGM Responsible party role code >2 Postal address >Geographical Survey Institute, Kitasato 1 City >Tsukuba Administrative area >Ibaraki Postal code >305-0811 Country >JAPAN Online resource linkage >http://www.iscgm.org/ Dataset extent: Geographic extent coordinates: West bounding coordinate >-180 East bounding coordinate >180 North bounding coordinate >90 South bounding coordinate >-90 Temporal date / time >200806 Resolution level code >16 Language of dataset code >en Abstract >The Global Percent Tree Cover represents the density of trees on the ground. The data shows the ratio of the area covered with tree canopy to the unit area of ground surface. As for deciduous trees, which drop all their leaves during the period of low temparatre or dryness, the ratio of the most flourishing period of a year (Maximum Percent Tree Cover) was referenced as the Percent Tree Cover. Satellite images of the whole globe at every 1 square km from the MODIS sensor of Terra observed in 2003 were used for the data creation. As MODIS data were not available for polar areas, we defined coastline of Antarctica using the Global Map Antarctica version 1.0 (originally from ADD by SCAR) and percent tree cover inside Antarctica was regarded as zero because these areas are covered with snow and ice. In the northern land area higher than latitude 80 degrees, the percent tree cover was also regarded as zero. Purpose >The Global Map is a basic framework database designed to support Geographic Information Systems applications, especially for examination of global environmental issues. Category: Theme code >11 Access constraints >None Use constraints > Any application procedure is not required in using the product. However, acknowledgement of written sources is necessary. Please show a text, "GSI, CEReS, Collaborating Organizations", on your products. Spatial representation type code >3 Spatial reference system type code >2 Distribution identifier > Distribution format name >BIL, Geotiff Distribution media >Online Level of conformance of metadata >1 Language of metadata code >En Metadata date >200806