ITP: xsar -- xarray/dask distributed L1 sar file reader
Antonio Valentino
antonio.valentino at tiscali.it
Wed Aug 9 07:23:44 BST 2023
Package: wnpp
Severity: wishlist
X-Debbugs-Cc: debian-devel at lists.debian.org, :debian-python at lists.debian.org
Owner: Antonio Valentino <antonio.valentino at tiscali.it>
* Package name : xsar
Version : 1.1.6
Upstream Author : Olivier Archer, Alexandre Levieux, Antoine Grouazel <Olivier.Archer at ifremer.fr,
Alexandre.Levieux at gmail.com, Antoine.Grouazel at ifremer.fr>
* URL : https://github.com/umr-lops/xsar
* License : MIT
Programming Lang: Python
Description : Python xarray reader to use Level-1 GRD Synthetic Aperture Radar products
Binary package names: python3-xsar
xsar is a distributed level 1 Synthetic Aperture Radar (SAR) file reader
designed to write efficient distributed processing algorithms with xarray
and dask.
.
It currently handles Level-1 Sentinel-1 and Radarsat-2 data in SAFE format,
as found on scihub or PEPS.
.
xsar rely on xarray.open_rasterio, rasterio and GDAL to read digital_number
from SAFE product to return an xarray.Dataset object with dask chunks.
Luts are decoded from xml files and applied to digital_number, following
official ESA thermal denoising document and ESA Sentinel-1 Product
Specification.
.
End user can directly use for example sigma0 variable, or the denoised
sigma0 computed from digital_number and by applying relevant luts.
.
Since xsar rely on dask, it have a small memory footprint: variables are
read from file and computed only if needed.
The package will be maintained in debian-gis.
kind regards
--
Antonio Valentino
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