ISRIC-WISE derived soil properties on a 5 by 5 arc-minutes global grid (ver. 1.1)

• This harmonized, global data set was prepared using:
    1. Spatial data from the 1:5 million scale FAO-Unesco Soil Map of the Word
    2. Soil parameter estimates derived from ISRIC’s WISE database.
    
• The data set includes derived soil properties for the 106 soil units shown on the Soil Map of the World,  for fixed depth intervals of 20 cm up to 100 cm depth.
   
• The soil variables under consideration are: drainage class, organic carbon content, total nitrogen, C/N ratio, pH(H2O), CECsoil, CECclay, effective CEC, base saturation, aluminium saturation, calcium carbonate content, gypsum content, exchangeable sodium percentage (ESP), electrical conductivity, particle size distribution (i.e. content of sand, silt and clay), content of coarse fragments, bulk density, and available water capacity (-33 to -1500 kPa). 
      
• Modal values shown for the derived soil properties should be seen as 'best' estimates; possible types and sources of uncertainty are discussed in the documentation. 
      
• The GIS project file includes selected binned data sets, as examples of possible output; these classified data consider the full map unit composition. The data set also includes several other tables, listing derived soil parameters by soil unit and depth layer, which can be joined to the raster data using GIS. These include both binned and un-binned data.
    
• Download documentation or dataset (about 15 Mb zipped and 100 Mb unzipped). 
   
  
                
                Example of GIS output with details of the attribute data for map unit WD600
  

Further information: