[GRASS-dev] [GRASS GIS] #1997: i.landsat.toar for grass-dev is missing the option for landsat8

[GRASS GIS]

#1997: i.landsat.toar for grass-dev is missing the option for landsat8
----------------------------+-----------------------------------------------
 Reporter:  vesnikos        |       Owner:  grass-dev@…              
     Type:  defect          |      Status:  new                      
 Priority:  normal          |   Milestone:  7.0.0                    
Component:  Imagery         |     Version:  svn-trunk                
 Keywords:  i.landsat.toar  |    Platform:  All                      
      Cpu:  Unspecified     |  
----------------------------+-----------------------------------------------

Comment(by nikosa):

 Replying to [comment:6 vesnikos]:
 > some minor bugs during my tests:


 > 2) Band8 (panchomatic) has my nature 15m res. The algorithm uses the
 regions resolution , and you cannot do anything to override it.

 You can set the region resolution to the desired one!  In my scripts I do
 that.  Maybe in this case an exception could be done and let the module
 handle this?

 > 3) timestamp in r.info reads none, the date of acquisition  is in the
 metadata, so it should  be properly implemented

 This would be also nice!

 > eg: r.timestamp map=LC81840322013143LGN03_B10.toarr.1 date="$(date
 -d'$DATE_ACQUIRED $SCENE_CENTER_TIME' -u +'%d %b %Y %H:%M:%S.%N %z')"

 You can get the date using

 {{{
 i.landsat.toar -p metfile=MTLFile.txt lsatmet=date
 }}}

 and the ''decimal'' time

 {{{
 i.landsat.toar -p metfile=MTLFile.txt lsatmet=time
 }}}

 though, the "input_prefix=Dummy" and "output_prefix=Dummy" must be
 defined.

 For the records, if you import Landsat bands using the script found in
 GRASS-Wiki
 [http://grasswiki.osgeo.org/wiki/LANDSAT#Automated_data_import], the
 timestamp is set correctly.  However, i.landsat.toar does not take care to
 copy this over.  Even, the right way would be to grep the info from the
 MTL file directly.

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/1997#comment:7>
GRASS GIS <http://grass.osgeo.org>