integration of S1 TOPS xspec computation tool 17nov2022 from Nouguier

umr-lops / xsarsea

scientific functions to compute radar or geophysical parameters from satellite images over ocean

https://cerweb.ifremer.fr/datarmor/doc_sphinx/xsarsea/

MIT License

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integration of S1 TOPS xspec computation tool 17nov2022 from Nouguier #41

Closed agrouaze closed 1 year ago

agrouaze commented 2 years ago

intra+inter burst

[x] clean code (PEP8 convention)
[x] add documentation
[x] get throughput (time and RAM and netCDF output size)
[x] check outputs validity with @lanougue for intra and inter bursts.

agrouaze commented 2 years ago

first commit contains these modifications from original sources:

change import tools -> import xsarsea.sar_slc.tools
adapt access to subgroup image in the Sentinel1 datatree. (e.g. dt['image'].ds['slantRangeTime'] )
adapt to last version of xsar for SLC products -> xsarobj.add_high_resolution_variables()

agrouaze commented 2 years ago

first run of xspectra = sar_slc.processing.compute_subswath_intraburst_xspectra(dt) on a IW SLC subswath took 14min and 34,51Go RAM.

agrouaze commented 2 years ago

first run of xspectra = xsarsea.sar_slc.processing.compute_subswath_interburst_xspectra(dt) on product 'SENTINEL1_DS:/home/datawork-cersat-public/project/mpc-sentinel1/data/esa/sentinel-1a/L1/IW/S1A_IW_SLC__1S/2022/250/S1A_IW_SLC__1SDV_20220907T133016_20220907T133043_044899_055CF5_7A7B.SAFE:IW2' took 6m 32.41s and 25.313 Gbytes of RAM on a Dell Inc. OptiPlex 7060 64,0 Gio ntel® Core™ i7-8700 CPU @ 3.20GHz × 12 , GeForce GT 730.

agrouaze commented 1 year ago

througputs: one example L1B IW SLC : S1A_IW_SLC__1SDV_20210413T043041_20210413T043109_037427_04695F_FE5C.SAFE_L1B_xspec_IFR_VV_0.1.nc

processing time: 53.530 min
RAM 25.5Go
file size (full size spectra): 1.1Go

agrouaze commented 1 year ago