Something is wrong with an asset covering the North Pole

Microwave Toolbox
#1

Please take a look at S1A_EW_GRDH_1SSH_20151101T005107_20151101T005211_008404_00BDF4_C54E .
Its footprint in the manifest is 83.362671,144.643005 86.501839,121.235176 87.221863,-164.062103 83.717445,179.721802, so it seems to overlap the North Pole.

Problems:

  1. On scihub, its preview shows Italy (but there is no polygon outline) - see image.

  2. Running calibration + TC (with stereographic projection) on it produces a geotiff with value of 0 everywhere.

  3. The geotiff’s CRS lacks the word “degrees” in the first UNIT section (see below).

Is anyone able to deal with this image?

Thanks,
Simon

PROJCS[“Polar_Stereographic / World Geodetic System 1984”,
GEOGCS[“World Geodetic System 1984”,
DATUM[“WGS_1984”,
SPHEROID[“WGS 84”,6378137,298.257223563,
AUTHORITY[“EPSG”,“7030”]],
AUTHORITY[“EPSG”,“6326”]],
PRIMEM[“Greenwich”,0],
UNIT[,0.0174532925199433]],
PROJECTION[“Polar_Stereographic”],
PARAMETER[“latitude_of_origin”,0],
PARAMETER[“central_meridian”,90],
PARAMETER[“scale_factor”,1],
PARAMETER[“false_easting”,0],
PARAMETER[“false_northing”,0],
UNIT[“metre”,1,
AUTHORITY[“EPSG”,“9001”]]]

#2

Simon, I processed the product with TC (GETASSE30, Stereographic North) and it seemed ok.
The boundaries are beyond the limits of SRTM and ASTER which may be why you got the 0 values if ‘mask out areas without elevation’ was enabled.

#3

Luis,

What CRS do you have on the resulting geotiff? If I add the word “degrees” to mine, it seems to be correct, but I’m surprised that an in invalid CRS was produced by the toolbox.

#4

Luis,

I’d like to revisit this - could you comment on why the CRS in this case has no “degrees” after the first UNIT parameter? This makes it impossible to ingest the results into EE without manually fixing the CRS.
(Just verified this with 4.0.1)

Thanks!