Mid incidence angle in sentinel 1

[ABraun]

these two may help you

About processing radiometric calibration IW SLC in SNAP

incidence angle is dependent from the distance to the sensor. So there is always a difference between the far and the near range.: You find it under Abstracted_Metadata: [image] If you want the incident angle of a specific pixel, you can open it as a Tie-Point-Grid: [image]

About processing radiometric calibration IW SLC in SNAP

this is because the raster cells in the near range are hundreds of kilometers closer to the sensor than the ones in the far range. Due to the side-looking geometry of the SAR sytstem, the angles differ so much in large data sets. If you want the average angle of the whole image open the image statistics of your incidence angle image: [image] But if you need the angle for the computation of certain derivatives I highly recommend the band maths function using the incidence angles (activate ‘ti…