Surface models
4 important questions on Surface models
What are the most common interpolation methods?
- Simple mean
- Kriging
- Inverse Distance Weighted (IDW)
- Spline
What are the charasteristics of inverse distance weight?
- This influence diminishes with distance
- Number of input points or all input points within a specified radius
- Output value between minimum and maximum input value
- Best result with evenly distributed input points
What are the charasteristics of spline?
- Fits a mathematical function to a specified number or nearest input points
- Output value possible below minumum an above maximum input value
- Best results for gently varying surfaces
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What is the aspect of the slope?
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