How Decompose Sentinel-1 GRDH data

for the estimation of forest areas GRD data is completely sufficient.
The general work flow is:

  1. Apply Orbit File
  2. Calibrate
  3. Speckle Filter
  4. Range-Doppler Terrain Correction

You can use the ratio between VV and VH in order to extract the forest areas.
VH values are high where ever the incoming vertical wave is backscattered horizontally to a high degree. This is often the case for vegetation with larger volumes.

Make A RGB composite out of Red: VV Green: VH and Blue: VH/VV. The Forest ares should be clearly visible then.

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