[GRASS-dev] [GRASS GIS] #2823: Lack of satellite overpass time in metadata

#2823: Lack of satellite overpass time in metadata
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Reporter: andbal | Owner: grass-dev@…
     Type: enhancement | Status: new
Priority: minor | Milestone: Website
Component: Datasets | Version: unspecified
Keywords: | CPU: Unspecified
Platform: Unspecified |
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In the North Carolina dataset (''nc_spm_08_grass7''), the metadata file of
Landsat images, doesn't contain information about acquisition time of the
scene. This information is needed in case someone want to use module like
''i.atcorr'' or ''i.soilheatflux'' on this example dataset.[[BR]]

I think a reasonable overpass time can be obtained from:
[http://cloudsgate2.larc.nasa.gov/cgi-bin/predict/predict.cgi\] giving:
* Date of acquisition
* Coordinates of the scene center

I added an explanation of how to use this method in ''Atmospheric
correction''
[https://grasswiki.osgeo.org/wiki/Atmospheric_correction#Estimating_the_overpass_time
wiki page], but for the future datasets maybe images with ''full''
metadata is desiderable.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2823&gt;
GRASS GIS <https://grass.osgeo.org>

#2823: Lack of satellite overpass time in metadata
--------------------------+-------------------------
  Reporter: andbal | Owner: grass-dev@…
      Type: enhancement | Status: new
  Priority: minor | Milestone: Website
Component: Datasets | Version: unspecified
Resolution: | Keywords:
       CPU: Unspecified | Platform: Unspecified
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Comment (by neteler):

Replying to [ticket:2823 andbal]:
> In the North Carolina dataset (''nc_spm_08_grass7''), the metadata file
of Landsat images, doesn't contain information about acquisition time of
the scene. This information is needed in case someone want to use module
like ''i.atcorr'' or ''i.soilheatflux'' on this example dataset.[[BR]]

http://grassbook.org/datasets/datasets-3rd-edition/

--> http://www.grassbook.org/wp-content/uploads/ncexternal/landsat/

----> 1987/, 2000/, 2002/

There are the .met files. Nothing else is available. I am not sure what
you wish to be changed.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2823#comment:1&gt;
GRASS GIS <https://grass.osgeo.org>

#2823: Lack of satellite overpass time in metadata
--------------------------+-------------------------
  Reporter: andbal | Owner: grass-dev@…
      Type: enhancement | Status: closed
  Priority: minor | Milestone: Website
Component: Datasets | Version: unspecified
Resolution: fixed | Keywords:
       CPU: Unspecified | Platform: Unspecified
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Changes (by neteler):

* status: new => closed
* resolution: => fixed

Comment:

Thanks for your work, I have created a new document based on your notes at

http://www.grassbook.org/wp-
content/uploads/ncexternal/landsat/landsat_overpass_time_list_NC.txt

and linked to it elsewhere.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2823#comment:2&gt;
GRASS GIS <https://grass.osgeo.org>