CTDB FormatPolygon Attribute Table (cont.)
The PAT has four default columns:
- Column 0: The traditional mobility word containing the SIMNET "soil type", the CCTT mobility index, and the characteristics flags is always the zero index column of the PAT to support backward compatibility.
- Column 1: USGS soil type - The FACC code is STP.
- Column 2: Surface Material Category - The FACC code is SMC.
- Column 3: Soil Moisture Content - The FACC code is SWC. The FACC category for this stores unknown, dry, moist, wet, and frozen.