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Sentinel-1 Level 1 python reader for efficient xarray/dask based processor

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xsar

Sentinel1 Level 1 python reader for efficient xarray/dask based processor

Install

conda install -c conda-forge xsar
>>> import xsar
>>> import xarray
>>> xarray.open_dataset('S1A_IW_GRDH_1SDV_20170907T103020_20170907T103045_018268_01EB76_Z010.SAFE')

<xarray.Dataset>
Dimensions:               (atrack: 16778, pol: 2, xtrack: 25187)
Coordinates:
  * atrack                (atrack) int64 0 1 2 3 4 ... 16774 16775 16776 16777
  * pol                   (pol) object 'VV' 'VH'
  * xtrack                (xtrack) int64 0 1 2 3 4 ... 25183 25184 25185 25186
    spatial_ref           int64 ...
Data variables: (12/19)
    time                  (atrack) timedelta64[ns] ...
    digital_number        (pol, atrack, xtrack) uint16 ...
    land_mask             (atrack, xtrack) int8 ...
    ground_heading        (atrack, xtrack) float32 ...
    sigma0_raw            (pol, atrack, xtrack) float64 ...
    nesz                  (pol, atrack, xtrack) float64 ...
    ...                    ...
    longitude             (atrack, xtrack) float64 ...
    latitude              (atrack, xtrack) float64 ...
    velocity              (atrack) float64 ...
    range_ground_spacing  (xtrack) float64 ...
    sigma0                (pol, atrack, xtrack) float64 ...
    gamma0                (pol, atrack, xtrack) float64 ...
Attributes: (12/14)
    ipf:               2.84
    platform:          SENTINEL-1A
    swath:             IW
    product:           GRDH
    pols:              VV VH
    name:              SENTINEL1_DS:/home/oarcher/SAFE/S1A_IW_GRDH_1SDV_20170...
    ...                ...
    footprint:         POLYGON ((-67.84221143971432 20.72564283093837, -70.22...
    coverage:          170km * 251km (atrack * xtrack )
    pixel_atrack_m:    10.152619433217325
    pixel_xtrack_m:    9.986179379582332
    orbit_pass:        Descending
    platform_heading:  -167.7668824808032

More infos

For more install options and to use xsar, see documentation

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