Re: [GRASS-user] i.atcorr with Sentinel2

On Thu, Jan 25, 2018 at 3:22 PM, Markus Metz wrote: > > > > On Thu, Jan 25, 2018 at 3:11 PM, Stefan Blumentrath < stefan.blumentr...@nina.no> wrote: > > > > From: Markus Metz [mailto:markus.metz.gisw...@gmail.com] > > > > > Looks good to me, please submit to trunk.

Re: [GRASS-user] i.atcorr with Sentinel2

From: Markus Metz [mailto:markus.metz.gisw...@gmail.com] Sent: torsdag 25. januar 2018 14.12 To: Stefan Blumentrath <stefan.blumentr...@nina.no> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 > Looks good to me, please submit to

Re: [GRASS-user] i.atcorr with Sentinel2

. Cheers Stefan From: grass-user [mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Stefan Blumentrath Sent: torsdag 25. januar 2018 11.30 To: Markus Metz <markus.metz.gisw...@gmail.com> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Senti

Re: [GRASS-user] i.atcorr with Sentinel2

> Let's get out 7.4.0 and then add the new S2A/B to 7.4.1. Otherwise we'll > never get it out... Fully understand! Stefan ___ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] i.atcorr with Sentinel2

[mailto:markus.metz.gisw...@gmail.com] Sent: torsdag 25. januar 2018 11.16 To: Stefan Blumentrath <stefan.blumentr...@nina.no> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On Thu, Jan 25, 2018 at 10:51 AM, Stefan Blumentrath <stefan.blum

Re: [GRASS-user] i.atcorr with Sentinel2

heers > > Stefan > > > > > > From: Stefan Blumentrath > Sent: onsdag 24. januar 2018 14.55 > To: Stefan Blumentrath <stefan.blumentr...@nina.no>; Žofie Cimburová < zoficimbur...@gmail.com> > Cc: GRASS user list <grass-user@lists.osgeo.org> >

Re: [GRASS-user] i.atcorr with Sentinel2

<nete...@osgeo.org> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On Tue, Jan 23, 2018 at 11:51 AM, Markus Neteler < nete...@osgeo.org> wrote: > > On Tue, Jan 23, 2018 at 11:09 AM, Žofie Cimburová > < zoficimbur

Re: [GRASS-user] i.atcorr with Sentinel2

metz.gisw...@gmail.com>; GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On Wed, Jan 24, 2018 at 12:35 AM, Stefan Blumentrath <stefan.blumentr...@nina.no<mailto:stefan.blumentr...@nina.no>> wrote: Hi again, So, I did not prior

Re: [GRASS-user] i.atcorr with Sentinel2

be produced anyway. Markus M > > Cheers > Stefan > > Von: Markus Metz > [markus.metz.gisw...@gmail.com<mailto:markus.metz.gisw...@gmail.com>] > Gesendet: Dienstag, 23. Januar 2018 14:50 > An: Stefan Blumentrath > Cc: Markus Netele

Re: [GRASS-user] i.atcorr with Sentinel2

> Von: Markus Metz [markus.metz.gisw...@gmail.com] > Gesendet: Dienstag, 23. Januar 2018 14:50 > An: Stefan Blumentrath > Cc: Markus Neteler; GRASS user list > Betreff: Re: [GRASS-user] i.atcorr with Sentinel2 > > On Tue, Jan 23, 2018 at 2:19

Re: [GRASS-user] i.atcorr with Sentinel2

<grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 It's been a while since I wrote that script. Glad to see it's still of use :) Anyway, I'm a bit overwhelmed so I won't be able to look at the changes asked. But I'm glad Stefan can take a look. And I can help out in any que

Re: [GRASS-user] i.atcorr with Sentinel2

[markus.metz.gisw...@gmail.com] Gesendet: Dienstag, 23. Januar 2018 14:50 An: Stefan Blumentrath Cc: Markus Neteler; GRASS user list Betreff: Re: [GRASS-user] i.atcorr with Sentinel2 On Tue, Jan 23, 2018 at 2:19 PM, Stefan Blumentrath <stefan.blumentr...@nina.no<mailto:stefan.blumentr...@n

Re: [GRASS-user] i.atcorr with Sentinel2

; > > > > > From: Markus Metz [mailto:markus.metz.gisw...@gmail.com] > > Sent: tirsdag 23. januar 2018 13.02 > > To: Stefan Blumentrath <stefan.blumentr...@nina.no> > > Cc: Markus Neteler <nete...@osgeo.org>; GRASS user list < > grass-user@lists.osgeo.org&g

Re: [GRASS-user] i.atcorr with Sentinel2

rkus Metz [mailto:markus.metz.gisw...@gmail.com] > Sent: tirsdag 23. januar 2018 13.02 > To: Stefan Blumentrath <stefan.blumentr...@nina.no> > Cc: Markus Neteler <nete...@osgeo.org>; GRASS user list < grass-user@lists.osgeo.org> > > > Subject: Re: [G

Re: [GRASS-user] i.atcorr with Sentinel2

<stefan.blumentr...@nina.no> Cc: Markus Neteler <nete...@osgeo.org>; GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On Tue, Jan 23, 2018 at 12:25 PM, Stefan Blumentrath <stefan.blumentr...@nina.no<mailto:stefan.blumentr...@nina.no>&

Re: [GRASS-user] i.atcorr with Sentinel2

om: grass-user [mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Markus Metz > Sent: tirsdag 23. januar 2018 12.03 > To: Markus Neteler <nete...@osgeo.org> > Cc: GRASS user list <grass-user@lists.osgeo.org> > Subject: Re: [GRASS-user] i.atcorr with Sentinel2 > >

Re: [GRASS-user] i.atcorr with Sentinel2

osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On Tue, Jan 23, 2018 at 11:51 AM, Markus Neteler <nete...@osgeo.org<mailto:nete...@osgeo.org>> wrote: > > On Tue, Jan 23, 2018 at 11:09 AM, Žofie Cimburová > <zoficimbur...@gmail.com<mailto:zoficimbur...@gmail

Re: [GRASS-user] i.atcorr with Sentinel2

rass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On Tue, Jan 23, 2018 at 11:09 AM, Žofie Cimburová <zoficimbur...@gmail.com> wrote: > Forgot to cc the list. > > The CSV and the cpp template: > https://www.dropbox.com/sh/9cnhsl59kvmx4o1/AABwnEVHdxfW_PqrB

Re: [GRASS-user] i.atcorr with Sentinel2

On Tue, Jan 23, 2018 at 11:51 AM, Markus Neteler wrote: > > On Tue, Jan 23, 2018 at 11:09 AM, Žofie Cimburová > wrote: > > Forgot to cc the list. > > > > The CSV and the cpp template: > >

Re: [GRASS-user] i.atcorr with Sentinel2

On Tue, Jan 23, 2018 at 11:09 AM, Žofie Cimburová wrote: > Forgot to cc the list. > > The CSV and the cpp template: > https://www.dropbox.com/sh/9cnhsl59kvmx4o1/AABwnEVHdxfW_PqrB5Xcpczda?dl=0 Great! Would you mind to also convert the S2A table? AFAIK it got updated due

Re: [GRASS-user] i.atcorr with Sentinel2

Great! Thanks, we will have a look at it! Cheers Stefan From: grass-user [mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Markus Metz Sent: tirsdag 23. januar 2018 09.41 To: Markus Neteler <nete...@osgeo.org> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re:

Re: [GRASS-user] i.atcorr with Sentinel2

On Tue, Jan 23, 2018 at 8:31 AM, Žofie Cimburová wrote: ... > There is one more thing I am not sure about - can the geometrical conditions > parameter and sensor bands parameter used for Sentinel2-A (i.e. 25 and > 166-178) be used for Sentinel2-B as well? No, we have to

Re: [GRASS-user] i.atcorr with Sentinel2

ith-freetype --with-freetype-includes=/usr/include/freetype2 > --with-fftw --with-nls --with-python --with-tiff --with-geos > --enable-largefile --with-readline --with-blas --with-glw --with-motif > --with-openmp --with-wxwidgets --with-liblas --with-netcdf --with-lapack > --with-mysql-in

Re: [GRASS-user] i.atcorr with Sentinel2

-opencl --with-pdal --with-bzlib –prefix=~/ >> >> make –j 20 >> >> make install >> >> >> >> Cheers >> >> Stefan >> >> >> >> From: grass-user [mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Žofie Cimburová >

Re: [GRASS-user] i.atcorr with Sentinel2

usr/include/mysql --with-mysql --with-opencl > --with-pdal --with-bzlib –prefix=~/ > > make –j 20 > > make install > > > > Cheers > > Stefan > > > > *From:* grass-user [mailto:grass-user-boun...@lists.osgeo.org] *On Behalf > Of *Žofie Cimburová > *Sent:* m

Re: [GRASS-user] i.atcorr with Sentinel2

> > > > On Thu, Dec 21, 2017 at 8:18 AM, Stefan Blumentrath < > stefan.blumentr...@nina.no> wrote: > > > > Thanks Markus, > > > > As a next try I updated my gcc and g++ to 5.4.1 (on Ubuntu 14.04) and I > applied your compiler flags, Markus. > > Unfortunately, I still get only NULL cells in

Re: [GRASS-user] i.atcorr with Sentinel2

; spare...@gmail.com>; GRASS user list <grass-user@lists.osgeo.org> > Subject: Re: [GRASS-user] i.atcorr with Sentinel2 > > Adding to the confusion. I used > > On Wed, Dec 20, 2017 at 5:41 PM, Moritz Lennert < mlenn...@club.worldonline.be<mailto:mlenn...@club.worldonline.be>

Re: [GRASS-user] i.atcorr with Sentinel2

<mlenn...@club.worldonline.be> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 Thanks Markus, As a next try I updated my gcc and g++ to 5.4.1 (on Ubuntu 14.04) and I applied your compiler flags, Markus. Unfortunately, I still get only NULL

Re: [GRASS-user] i.atcorr with Sentinel2

Metz [mailto:markus.metz.gisw...@gmail.com] Sent: onsdag 20. desember 2017 22.52 To: Moritz Lennert <mlenn...@club.worldonline.be> Cc: Stefan Blumentrath <stefan.blumentr...@nina.no>; Sajid Pareeth <spare...@gmail.com>; GRASS user list <grass-user@lists.osgeo.org>

Re: [GRASS-user] i.atcorr with Sentinel2

Adding to the confusion. I used On Wed, Dec 20, 2017 at 5:41 PM, Moritz Lennert < mlenn...@club.worldonline.be> wrote: > > On 19/12/17 15:24, Stefan Blumentrath wrote: >> >> >> In case someone would be willing to test my data (which I would be very grateful for), you can get it directly here: >>

Re: [GRASS-user] i.atcorr with Sentinel2

<stefan.blumentr...@nina.no>; Sajid Pareeth <spare...@gmail.com> Cc: Žofie Cimburová <zoficimbur...@gmail.com>; GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On 19/12/17 15:24, Stefan Blumentrath wrote: > > In case someo

Re: [GRASS-user] i.atcorr with Sentinel2

On 19/12/17 15:24, Stefan Blumentrath wrote: In case someone would be willing to test my data (which I would be very grateful for), you can get it directly here: dem: http://www.filedropper.com/dem_1 S2 band 8:

Re: [GRASS-user] i.atcorr with Sentinel2

On Dec 20, 2017 3:31 PM, "Sajid Pareeth" wrote: ... >> GRASS 7.4.svn> i.atcorr -r input=s2a_b8 range=0,1 elevation=dem parameters=p6s.txt output=s2a_b8_corr_2 rescale=0,1 >> WARNING: Request for unsupported compressor >> WARNING: Request for unsupported compressor >>

Re: [GRASS-user] i.atcorr with Sentinel2

Hi Stefan I tested your data in different versions. Now, I compiled both GRASS 7.4 and 7.5 on Ubuntu 14.04 (gcc (Ubuntu > 4.8.4-2ubuntu1~14.04.1) 4.8.4). > I get the same output (with numbers) for both compiled 7.4 and 7.5 in Ubuntu 16.04.3 LTS (gcc version 5.4.0 20160609 (Ubuntu

Re: [GRASS-user] i.atcorr with Sentinel2

] On Behalf Of Markus Neteler Sent: tirsdag 19. desember 2017 20.38 To: Stefan Blumentrath <stefan.blumentr...@nina.no> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On Tue, Dec 19, 2017 at 4:58 PM, Stefan Blumentrath <stefan.blum

Re: [GRASS-user] i.atcorr with Sentinel2

On Tue, Dec 19, 2017 at 10:30 PM, Sajid Pareeth wrote: >> g.version >> GRASS 7.2.2 (2017) >> GRASS 7.2.2 (SB):~/work/tmp/Blumentrath > cat p6s.txt >> 25# originally 25 >> >> 9 5 10.6728 10.73413 59.90647 >> 4 >> 3 >> 50 >> -0.055 >> -1000 >> 165# original 173 >> GRASS

Re: [GRASS-user] i.atcorr with Sentinel2

> > g.version > GRASS 7.2.2 (2017) > GRASS 7.2.2 (SB):~/work/tmp/Blumentrath > cat p6s.txt > 25# originally 25 > > 9 5 10.6728 10.73413 59.90647 > 4 > 3 > 50 > -0.055 > -1000 > 165# original 173 > GRASS 7.2.2 (SB):~/work/tmp/Blumentrath > i.atcorr --v -r --o > input=S2A.B08 elev=dem

Re: [GRASS-user] i.atcorr with Sentinel2

Blumentrath <stefan.blumentr...@nina.no>; Sajid Pareeth <spare...@gmail.com> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 Dear Stefan: I also tried your data, and failed. Any values for the geom (first line in the 6S paramete

Re: [GRASS-user] i.atcorr with Sentinel2

On Tue, Dec 19, 2017 at 9:58 PM, Micha Silver wrote: > Dear Stefan: > I also tried your data, and failed. Any values for the geom (first line in > the 6S parameters) above 24 cause this error: (there is a comment inside - likely not supported to have that in the parameter

Re: [GRASS-user] i.atcorr with Sentinel2

umentrath <stefan.blumentr...@nina.no> Cc: Moritz Lennert <mlenn...@club.worldonline.be>; Žofie Cimburová <zoficimbur...@gmail.com>; GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GR

Re: [GRASS-user] i.atcorr with Sentinel2

On Tue, Dec 19, 2017 at 4:58 PM, Stefan Blumentrath wrote: [...] > 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

Re: [GRASS-user] i.atcorr with Sentinel2

Hi > but I get only NULL values also for those data and settings and when > running i.atcorr in GRASS 7.4.0RC1. > That's strange !!! > I stumbled over the following line in i.atcorr output (see full verbose > output below): > > *view zenith angle: 0.00 deg view azimuthal angle:

Re: [GRASS-user] i.atcorr with Sentinel2

... 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 wit

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

Re: [GRASS-user] i.atcorr with Sentinel2

ntrath > *Sent:* tirsdag 19. desember 2017 15.24 > *To:* Sajid Pareeth <spare...@gmail.com> > *Cc:* GRASS user list <grass-user@lists.osgeo.org> > > *Subject:* Re: [GRASS-user] i.atcorr with Sentinel2 > > > > Dear Sajid, > > > > Thanks so much for you

Re: [GRASS-user] i.atcorr with Sentinel2

t;mlenn...@club.worldonline.be<mailto:mlenn...@club.worldonline.be>>; Žofie Cimburová <zoficimbur...@gmail.com<mailto:zoficimbur...@gmail.com>>; GRASS user list <grass-user@lists.osgeo.org<mailto:grass-user@lists.osgeo.org>> Subject: Re: [GRASS-user] i.atcorr

Re: [GRASS-user] i.atcorr with Sentinel2

om>; GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 To add, I have used the input as such with out applying the quantification value. >> >> >> 6s file: >>

Re: [GRASS-user] i.atcorr with Sentinel2

To add, I have used the input as such with out applying the quantification value. >> >> >> >> >> 6s file: >> >> 25- geometrical conditions=Sentinel-2A >> >> 9 5 10.6728 10.73413 59.90647- month day hh.ddd longitude >>

Re: [GRASS-user] i.atcorr with Sentinel2

ath <stefan.blumentr...@nina.no>; Moritz Lennert < > mlenn...@club.worldonline.be>; Žofie Cimburová <zoficimbur...@gmail.com> > Cc: GRASS user list <grass-user@lists.osgeo.org> > Subject: RE: [GRASS-user] i.atcorr with Sentinel2 > > Hi again, > >

Re: [GRASS-user] i.atcorr with Sentinel2

<stefan.blumentr...@nina.no>; Moritz Lennert <mlenn...@club.worldonline.be>; Žofie Cimburová <zoficimbur...@gmail.com> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: RE: [GRASS-user] i.atcorr with Sentinel2 Hi again, Still trying to track down the iss

Re: [GRASS-user] i.atcorr with Sentinel2

ag 19. desember 2017 08.45 To: Moritz Lennert <mlenn...@club.worldonline.be>; Žofie Cimburová <zoficimbur...@gmail.com> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 Hi again, A little update on the problem: Now I ran i.atcorr with

Re: [GRASS-user] i.atcorr with Sentinel2

tefan > > -Original Message- > From: grass-user [mailto:grass-user-boun...@lists.osgeo.org] On Behalf > Of Moritz Lennert > Sent: mandag 18. desember 2017 16.26 > To: Žofie Cimburová <zoficimbur...@gmail.com> > Cc: GRASS user list <grass-user@lists.osgeo.or

Re: [GRASS-user] i.atcorr with Sentinel2

..@gmail.com> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 See also discussion here: http://forum.step.esa.int/t/the-quantification-value-has-a-true-value-dn-to-toa-reflectance/1220/ On 18/12/17 16:57, Moritz Lennert wrote: > O

Re: [GRASS-user] i.atcorr with Sentinel2

GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On 18/12/17 16:13, Žofie Cimburová wrote: Dear Moritz, According to https://earth.esa.int/web/sentinel/user-guides/sentinel-2-msi/product- types , the L1C product I am using already is in top of atmo

Re: [GRASS-user] i.atcorr with Sentinel2

s.osgeo.org] On Behalf Of Moritz Lennert Sent: mandag 18. desember 2017 16.26 To: Žofie Cimburová <zoficimbur...@gmail.com> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On 18/12/17 16:13, Žofie Cimburová wrote: Dear Moritz, Acco

Re: [GRASS-user] i.atcorr with Sentinel2

user list Betreff: Re: [GRASS-user] i.atcorr with Sentinel2 Hi Moritz, Thanks for helping with troubleshooting! QUANTIFICATION_VALUE is 1, Thus dividing with it gives a maximum value of 2.8... Any idea how to figure out if it is 12 or 16 bit image. It is directly downloaded from ESA... Cheers

Re: [GRASS-user] i.atcorr with Sentinel2

[mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Moritz Lennert Sent: mandag 18. desember 2017 16.26 To: Žofie Cimburová <zoficimbur...@gmail.com> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] i.atcorr with Sentinel2 On 18/12/17 16:13, Žofie Cimburová w

Re: [GRASS-user] i.atcorr with Sentinel2

On 18/12/17 16:13, Žofie Cimburová wrote: Dear Moritz, According to https://earth.esa.int/web/sentinel/user-guides/sentinel-2-msi/product-types , the L1C product I am using already is in top of atmosphere reflectance, so this should not be the problem (?). I tried running i.atcorr both with

Re: [GRASS-user] i.atcorr with Sentinel2

Dear Moritz, According to https://earth.esa.int/web/sentinel/user-guides/sentinel-2-msi/product-types , the L1C product I am using already is in top of atmosphere reflectance, so this should not be the problem (?). I tried running i.atcorr both with and without the -r flag. Zofie On Mon, Dec

Re: [GRASS-user] i.atcorr with Sentinel2

On 18/12/17 13:14, Žofie Cimburová wrote: Hi all, Now the 6S parameters are complete, but the output map contains only NULLs, no matter what combinations of input parameters and flags I use. Have anyone encountered the same issue? (Info below.) In the i.atcorr man page it says: "If flag -r

Re: [GRASS-user] i.atcorr with Sentinel2

Hi all, Now the 6S parameters are complete, but the output map contains only NULLs, no matter what combinations of input parameters and flags I use. Have anyone encountered the same issue? (Info below.) Thanks again. Zofie Version: g.version -g

Re: [GRASS-user] i.atcorr with Sentinel2

Dear Markus, thanks for your reply, this is exactly what I need to know! Best, Zofie On Fri, Dec 15, 2017 at 5:09 PM, Markus Neteler wrote: > > On Dec 15, 2017 3:54 PM, "Žofie Cimburová" > wrote: > > > > Dear all, > > I am trying to use i.atcorr

Re: [GRASS-user] i.atcorr with Sentinel2

On Dec 15, 2017 3:54 PM, "Žofie Cimburová" wrote: > > Dear all, > I am trying to use i.atcorr (GRASS 7.4) to apply atmospheric corrections for Sentinel 2 data. The documentation provides a great help, but there are two points I am not sure about - > > - I don't need the

Re: [GRASS-user] i.atcorr with Sentinel2

Zofie, You could mask the area or set the region to include only the area you're interested in Tom On Fri, Dec 15, 2017 at 9:53 AM, Žofie Cimburová wrote: > Dear all, > I am trying to use i.atcorr (GRASS 7.4) to apply atmospheric corrections > for Sentinel 2 data. The

[GRASS-user] i.atcorr with Sentinel2

Dear all, I am trying to use i.atcorr (GRASS 7.4) to apply atmospheric corrections for Sentinel 2 data. The documentation provides a great help, but there are two points I am not sure about - - I don't need the atmospheric correction to be applied to the whole scene, so I only imported a small