Thanks again Sajid, Tested now with your data and parameters and the command you send earlier:
r.in.gdal input=~/sen2data/elev_clip.tif output=elev –o r.in.gdal input=~/sen2data/S2A_OPER_MSI_L1C_TL_MTI_20151012T101024457Z_T32TPR_B02_clip.tif output=S2A_OPER_MSI_L1C_TL_MTI_20151012T101024457Z_T32TPR_B02 -o g.region -p raster=S2A_OPER_MSI_L1C_TL_MTI_20151012T101024457Z_T32TPR_B02 i.atcorr -r input=S2A_OPER_MSI_L1C_TL_MTI_20151012T101024457Z_T32TPR_B02 elevation=elev range=0,10000 output=test_atcorr rescale=0,10000 parameters=6Sparameters.txt –v --o but I get only NULL values also for those data and settings and when running i.atcorr in GRASS 7.4.0RC1. I stumbled over the following line in i.atcorr output (see full verbose output below): * view zenith angle: 0.00 deg view azimuthal angle: 0.00 deg * Do you get that as well? Given that the i.atcorr code did not change the last ½ year and given that you succeeded with current trunk as well (also with my data), I am afraid I have to conclude this is an issue of my local installation. Does anyone know if an underlying library can be causing trouble or what parts of my setup I would have to look for? Sajid, can you send me the output of your grass75 --config so I can build trunk just like you did… Again, thanks for all your support on trouble shooting… Cheers Stefan P.S.: Output from i.atcorr * ****************************** 6s version 4.2b ****************************** * * geometrical conditions identity * * ------------------------------- * * sentinel2a observation * * * * month: 10 day: 29 * * solar zenith angle: 61.03 deg solar azimuthal angle: 166.87 deg * * view zenith angle: 0.00 deg view azimuthal angle: 0.00 deg * * scattering angle: 118.97 deg azimuthal angle difference: 166.87 deg * * * * atmospheric model description * * ----------------------------- * * atmospheric model identity : * * midlatitude winter (uh2o=.853g/cm2,uo3=.395cm-atm) * * * * aerosols type identity : * * Continental aerosols model * * * * optical condition identity : * * visibility : 15.00 km opt. thick. 550nm : 0.3158 * * * * spectral condition * * ------------------ * * sentinel2a blue b2 * * value of filter function : * * wl inf= 0.300 mic wl sup= 2.600 mic * * * * target type * * ----------- * * homogeneous ground * * constant reflectance over the spectra 0.000 * * * * target elevation description * * ---------------------------- * * ground pressure [mb] 961.80 * * ground altitude [km] 0.450 * * gaseous content at target level: * * uh2o= 0.711 g/cm2 uo3= 0.396 cm-atm * * * * atmospheric correction activated * * -------------------------------- * Atmospheric correction... From: Sajid Pareeth [mailto:spare...@gmail.com] Sent: tirsdag 19. desember 2017 16.08 To: Stefan Blumentrath <stefan.blumentr...@nina.no> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 Hi Would you be able to provide me with the 1000 X 1000 clip of your data, so I can check if it is my installation? here it is, including the dem and parameters text file: (epsg:32632) http://scientificpubs.com/data_share/sen2data.tar.gz Sajid
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