2018-06-27 14:24 GMT+02:00 Markus Metz <[email protected]>:
> > > On Wed, Jun 27, 2018 at 2:16 PM, Roberta Fagandini < > [email protected]> wrote: > > > > I'm trying to create an automatic procedure to retrieve all the input > parameters for the control file of i.atcorr. > > I need py6S because I want to automatically read and compute AOT at > 550nm from an AERONET file. > > With AOT you mean aerosol optical thickness right? This is user input to > i.atcorr. There are various sources for AOT at 550nm, e.g. MODIS. > Right! > > > Anyway, it is probably much easier to to write your own routine to read > the AERONET file and get the corresponding formula for AOT than to fight > with 51821 lines of Fortran source code that is numerically unstable. Maybe > I can help with getting AOT at 550nm from an AERONET file avoiding the > Fortran version of 6S. > Ok but I'm not able to create this kind of routine on my own. If someone, more expert than me, can help me in translating the 6S/Py6S functions I can go on in this way otherwise for me it's easier to use the fortran source code. Here [0] a link to my Github repository in which you can find the small script that I wrote using the Py6S library to compute AOT at 550nm Roberta [0] https://github.com/RobiFag/GRASS_clouds_and_shadows/blob/master/read_aeronet.py > > Markus M > > > > > 2018-06-27 14:01 GMT+02:00 Moritz Lennert <[email protected]> > : > >> > >> On 27/06/18 13:54, Roberto Marzocchi wrote: > >>> > >>> > >>> Il giorno mer 27 giu 2018 alle ore 13:47 Markus Metz < > [email protected] <mailto:[email protected]>> ha > scritto: > >>> > >>> Hi Roberta, > >>> > >>> On Wed, Jun 27, 2018 at 1:20 PM, Roberta Fagandini > >>> <[email protected] <mailto:[email protected]>> wrote: > >>> > > >>> > Hi all! > >>> > I need to compile the 6S library in GRASS in order to install > the > >>> python library Py6S [0]. > >>> > >>> do you really need Py6S? Can't you use i.atcorr instead? > >>> > >>> > >>> She use Py6S to calculate imput for i.atcorr > >> > >> > >> That seems a bit overkill: why use Py6S to then use i.atcorr ? What are > you trying to get from Py6S ? > >> > >> Moritz > >> > > >
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