Global Agro-ecological Zones Assessment for Agriculture (GAEZ 2008). Undefined: Slope aspect undefined this value is used for grids where slope gradient is undefined or slope gradient is less than 2%.įischer, G., F. Number of 3 arc second grid cells that belong to the land mask and fall into 5 minutes grid cells
#HI RES SHADOW COMPLEX MAP ARCHIVE#
More information about the RAR archive format, may be found elsewhere on the net. A detailed description including technical details is provided in the documentation file. pixel counts) of the respective slope or aspect classes calculated for 3 arc-sec data and accumulated to 30 arc-sec and 5 min latitude/longitude grid cells respectively. The data include an elevation map describing median elevation in each grid cell, eight slope maps, and five aspect maps describing distributions (i.e.
The use of a standardized structure allows for the linkage of the attribute data with the raster map to display or query the composition in terms of soil units and the characterization of selected soil parameters (organic Carbon, pH, water storage capacity, soil depth, cation exchange capacity of the soil and the clay fraction, total exchangeable nutrients, lime and gypsum contents, sodium exchange percentage, salinity, textural class and granulometry). The resulting raster database consists of 21600 rows and 43200 columns, which are linked to harmonized soil property data. The Harmonized World Soil Database is a 30 arc-second raster database with over 15 000 different soil mapping units that combines existing regional and national updates of soil information worldwide ( SOTER, ESD, Soil Map of China, WISE) with the information contained within the 1:5 000 000 scale FAO-UNESCO Soil Map of the World (FAO, 1971-1981). This is the result of a collaboration between the FAO with IIASA, ISRIC-World Soil Information, Institute of Soil Science, Chinese Academy of Sciences (ISSCAS), and the Joint Research Centre of the European Commission (JRC)
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