[GRASS-user] i.landsat.toar comments have only 0 value

[Daniel Victoria]

Hi all,

I'm also noticing the same problem that Beatrice and Yasser mentioned.
I'm using WinGrass7_svn rev 58021 (installed using OSGeo4W).

If I run i.landsat.toar and ask it to print the metadata (-p flag), it
gives me the correct information from the MTL file
---
(Thu Oct 17 17:26:35 2013)
i.landsat.toar -p --overwrite --verbose input_prefix=tm5_2005_orig.
output_prefix=reflec_topo_2005.
metfile=C:\projetos\agspec\correcao_landsat\LT52180762005135CUB00\LT52180762005135CUB00_MTL.txt
lsatmet=number,creation,date,sun_elev,sensor,bands,sunaz,time
number=5
creation=2012-12-01
date=2005-05-15
sun_elev=37.184012
sensor=TM
bands=7
sunaz=39.877237
Metada file is MTL file: new format
---

But when I actually run i.landsat.toar (no -p flag), I get a bunch off zeros:
---
i.landsat.toar --overwrite --verbose input_prefix=tm5_2005_orig.
output_prefix=reflec_topo_2005.
metfile=C:\projetos\agspec\correcao_landsat\LT52180762005135CUB00\LT52180762005135CUB00_MTL.txt
lsatmet=number,creation,date,sun_elev,sensor,bands,sunaz,time
Metada file is MTL file: new format
RADIANCE & QUANTIZE from data of the metadata file
 LANDSAT: 5 SENSOR: TM
 ACQUISITION DATE 2005-05-15 [production date 2012-12-01]
   Earth-sun distance    = 0.00000000
   Solar elevation angle = 0.00000000
   Atmospheric correction: UNCORRECTED
-------------------
 BAND 1 (code 1)
   calibrated digital number (DN): 0.0 to 0.0
   calibration constants (L): 0.00000 to 0.00000
   at-sensor radiance = -0.00000000 * DN + -0.00000
   mean solar exoatmospheric irradiance (ESUN): -0.00000
   at-sensor reflectance = radiance / -0.00000
-------------------
 BAND 2 (code 2)
   calibrated digital number (DN): 0.0 to 0.0
   calibration constants (L): 0.00000 to 0.00000
   at-sensor radiance = 0.00000000 * DN + -0.00000
   mean solar exoatmospheric irradiance (ESUN): 0.00000
   at-sensor reflectance = radiance / 0.00000
-- clip --

I seem to recall the command was working fine on Linux but I'm not sure...

Cheers
Daniel

On Sat, Oct 5, 2013 at 11:27 PM, Yasser Said Lopez de Olmos Reyes
<biolyasser at gmail.com> wrote:
> I used osgeo4w stable version and 6.5.x svn yesterday's version. Both had 0s
> in verbose output. Sorry, I'm not in my desktop right now.
>
>
> 2013/10/5 Markus Neteler <neteler.osgeo at gmail.com>
>>
>> On Sat, Oct 5, 2013 at 5:20 AM, Yasser Said Lopez de Olmos Reyes
>> <biolyasser at gmail.com> wrote:
>> > I just noticed the same. Does this mean that i.landsat.toar did not read
>> > the
>> > values from the MTL file and, as a consequence, reflectances are wrong
>> > or is
>> > just a verbose display issue?
>>
>> Do you use the bugfixed version in from current SVN? Please post the
>> output of
>> g.version
>>
>> Markus
>
>
>
>
> --
> Saludos,
>
> Yasser
>
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user