I’m trying to run Back-Geocoding in Python using snappy (SNAP 12.0) with the Copernicus 30 m Global DEM, but I keep getting this error:
RuntimeError: org.esa.snap.core.gpf.OperatorException:
Entire image is outside of SRTM valid area.
Please use another DEM.
However, the AOI is in northern Norway (around Alta, 69° N) — well within Copernicus DEM coverage.
Here’s the relevant Python snippet:
from esa_snappy import GPF, HashMap
coreg_params = HashMap()
coreg_params.put(“DEMName”, “Copernicus 30m Global DEM”)
coreg_params.put(“DEMResamplingMethod”, “BILINEAR_INTERPOLATION”)
coreg_params.put(“ResamplingType”, “BILINEAR_INTERPOLATION”)
coreg_params.put(“MaskOutAreaWithoutElevation”, True)
coreg_params.put(“OutputDerampAndDemodPhase”, False)
coreg_params.put(“DisableReramp”, False)coreg = GPF.createProduct(“Back-Geocoding”, coreg_params, [orbit_2, orbit_1])
SNAP desktop work as expected.
Thanks in advance!
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