[GRASS-user] does i.landstat.toar expects ALL bands to work properly?

[Kozlova Maria]

Dear Carlos,
I succsessfully calculated ToA reflectance for OLI 1-8 bands with grass 6.4.4 if my memory is correct....


There are also other problems with I.landsat.toar in Grass 7 dealt with landsat 4 and 5 MSS images (the module try to calculate TOA for bands 4-7 instead of 1-4 and fail).
The other problem is that one have to rename thermal bands of Landsat 7 ETM+ images  from LE......_B6_VCID_1 and 2 to LE....B_61 and 62 to succseed TOA reflectance and LST calculations.  

-- 
Best regards,

Maria V. Kozlova

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29.09.2015, 17:01, "Carlos Grohmann" <carlos.grohmann at gmail.com>:
> Hello all
>
> I'm playing around with some Landsat-8 images. After reprojecting with GDAL (for southern hemisphere), importing and clipping to a smaller area of interest, I used i.landsat.toar to convert to reflectance.
>
> I'm only using bands 1-8.
>
> When I run i.landsat.toar *without* atmospheric correction, it runs but gives me an error message about not being able to read band 9, but it does creates the images.
>
> When I run it *with* atmospheric correction, I get the same error but it won't calculate reflectance, because it stops at the dark pixel step.
>
> So, two possibilities:
>
> 1 - If it is expecting all the bands, this should be in the manual
> 2 - remove this limitation, by issuing a warning but not rising an error and stopping the module.
>
> best
>
> Carlos
>
> --
> Prof. Carlos Henrique Grohmann
> Institute of Energy and Environment - Univ. of São Paulo, Brazil- Digital Terrain Analysis | GIS | Remote Sensing -
>
> http://carlosgrohmann.com
> http://orcid.org/0000-0001-5073-5572
> ________________
> Can’t stop the signal.
>
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