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A .znap (SNAP-specific .zarr)-archive, one per acquisition (currently named YYYYMMDD-coreg.znap, can be altered if necessary/preferred), containing the following layers:
* h2ph_<polarisation>_<epoch>: height-to-phase screen with the reference DEM subtracted cropped to the AoI (e.g. h2ph_VV_06Jan2023)
* i_<polarisation>_<epoch>: real component of the reduced SLCs cropped to the AoI (e.g. i_VV_06Jan2023)
* q_<polarisation>_<epoch>: imaginary component of the reduced SLCs cropped to the AoI (e.g. q_VV_06Jan2023)
* incident_angle: incidence angle at each pixel
* slant_range_time: slant range time at each pixel
* elevation: DEM (only at the mother epoch)
- coordinates:
* latitude: latitude coordinates cropped to the AoI
* latitude_<polarisation>: latitude coordinates cropped to the AoI (only at the mother epoch, difference unclear) (e.g. latitude_VV)
* longitude: longitude coordinates cropped to the AoI
* longitude_<polarisation>: longitude coordinates cropped to the AoI (only at the mother epoch, difference unclear) (e.g. longitude_VV)
- metadata:
* product metadata (in a JSON file located in *.znap/SNAP/product_metadata.json, related to Support reading metadata from SNAP corregistration results #82 )
* ground control points (empty)
* pins (empty)
This collection of .znap archives needs to be read into sarxarray, but the existing implementation does not allow for such a collection of .zarr archives (and real and imag do not exist in the variables as they have different names).
SNAP outputs per epoch:
.znap(SNAP-specific.zarr)-archive, one per acquisition (currently namedYYYYMMDD-coreg.znap, can be altered if necessary/preferred), containing the following layers:*
h2ph_<polarisation>_<epoch>: height-to-phase screen with the reference DEM subtracted cropped to the AoI (e.g.h2ph_VV_06Jan2023)*
i_<polarisation>_<epoch>: real component of the reduced SLCs cropped to the AoI (e.g.i_VV_06Jan2023)*
q_<polarisation>_<epoch>: imaginary component of the reduced SLCs cropped to the AoI (e.g.q_VV_06Jan2023)*
incident_angle: incidence angle at each pixel*
slant_range_time: slant range time at each pixel*
elevation: DEM (only at the mother epoch)- coordinates:
*
latitude: latitude coordinates cropped to the AoI*
latitude_<polarisation>: latitude coordinates cropped to the AoI (only at the mother epoch, difference unclear) (e.g.latitude_VV)*
longitude: longitude coordinates cropped to the AoI*
longitude_<polarisation>: longitude coordinates cropped to the AoI (only at the mother epoch, difference unclear) (e.g.longitude_VV)- metadata:
* product metadata (in a JSON file located in
*.znap/SNAP/product_metadata.json, related to Support reading metadata from SNAP corregistration results #82 )* ground control points (empty)
* pins (empty)
This collection of
.znaparchives needs to be read intosarxarray, but the existing implementation does not allow for such a collection of.zarrarchives (andrealandimagdo not exist in the variables as they have different names).