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I have some RCM data acquired at 3 meter resolution mode. This means that the range resolution is 3 meter and azimuth resolution is 1 meter.

The resolution can be confirmed by the following link. https://www.asc-csa.gc.ca/eng/satellites/radarsat/technical-features/characteristics.asp

Furthermore when I used gdal to get the raster resolution it comes out to be 1x1 as per the following suggestion How to get raster resolution using GDAL

The same resolution of 1x1 was obtained with rasterio,using raster.transform.(the suggestion to compute cell size in rasterio was obtained from the below link how to take cell size from raster using python or GDAL or RASTERIO)

As such ,I am not sure why the resolution from rasterio and gdal is coming out to be 1x1 when it should be actually 3x1.

Sparsh Garg
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  • I asked my mentor ,and he says that the SLC's original resolution is indeed 3x1 so I am not sure why gdal is giving me 1x1. – Sparsh Garg Mar 15 '24 at 04:05

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You need to process your SAR data from SLC to GRD (Ground range detected) in order to have square pixels.

Here is a post in the SNAP forum for example: https://forum.step.esa.int/t/slc-to-grd-workflow-different-steps/28733

You could also do this automatically using open source libaries in Python, such as EOReader.

Discalimer: I am the maintainer of EOReader

remi.braun
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