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Contrary to the local terrain factors the calculation of the complex terrain factors needs huger spatial context. It may be necessary to determine the terrain lines (like: channel lines) first.
The complex terrain factors are mainly basic data to more complex analysis, like the products "Soil", "Climate", "Water", etc.
In the following you will find some examples concerning complex morphometric terrain factors. The calculation (calculated values) relate to one respectively grid cell (presented by an altitude value) of the Digital Terrain Model (DTM).
| Preview/download | Terrain factors/comments | |
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Altitude above channel line Relatively altitude above the local erosion base |
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Example of use: important factor to predict the ground water level, relief intensity (erosion), etc. |
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Catchment area Dimension of the area extent every grid cell receives run-off from |
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Example of use: important terrain factor to answer hydrological demands, processes i.e. soil erosion |
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Modified soil wetness index Dimension of the potentional supply of soilwater |
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Example of use: important terrain factor to answer hydrological demands, especially soil moisture |
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