run

run#

Executable to process Sentinel-2 L1C images for aquatic environment

Usage:

grs <input_file> [–cams_file file] [-o <ofile>] [–odir <odir>] [–resolution res] [–max_cloud_cover max_cc] [–scale_aot factor] [–opac_model name] [–levname <lev>] [–no_clobber] [–allpixels] [–surfwater file] [–dem_file file] [–snap_compliant] grs -h | –help grs -v | –version

Options:

-h –help Show this screen. -v –version Show version.

<input_file> Input file to be processed

--cams_file file

Absolute path of the CAMS file to be used (mandatory)

-o ofile

Full (absolute or relative) path to output L2 image.

--odir odir

Ouput directory [default: ./]

--levname lev

Level naming used for output product [default: L2Agrs]

--no_clobber

Do not process <input_file> if <output_file> already exists.

--resolution=res

spatial resolution of the scene pixels [default: 60]

--max_cloud_cover max_cc

Skip process if image level 1 cloud cover is greater than max_cc in decimal number [default: 1]

--allpixels

force to process all pixels whatever they are masked (cloud, vegetation…) or not

--surfwater file

Absolute path of the surfwater geotiff file to be used

--dem_file file

Absolute path of the DEM geotiff file (already subset for the S2 tile)

--scale_aot factor

scaling factor applied to CAMS aod550 raster [default: 1]

--opac_model name

Force the aerosol model (OPAC) to be ‘name’ (choice: [‘ARCT_rh70’, ‘COAV_rh70’, ‘DESE_rh70’, ‘MACL_rh70’, ‘URBA_rh70’])

--snap_compliant

Export output to netcdf aligned with “beam” for ESA SNAP software

Example:

grs /data/satellite/S2/L1C/S2B_MSIL1C_20220731T103629_N0400_R008_T31TFJ_20220731T124834.SAFE –cams_file /data/cams/world/cams_forecast_2022-07.nc –resolution 60

For CNES datalake:

grs /work/datalake/S2-L1C/31TFJ/2023/06/16/S2B_MSIL1C_20230616T103629_N0509_R008_T31TFJ_20230616T111826.SAFE –cams_file /work/datalake/watcal/ECMWF/CAMS/2023/06/16/2023-06-16-cams-global-atmospheric-composition-forecasts.nc –odir /work/datalake/watcal/test –resolution 20 –dem_file /work/datalake/static_aux/MNT/COP-DEM_GLO-30-DGED_S2_tiles/COP-DEM_GLO-30-DGED_31TFJ.tif

Functions

main()