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

[GRASS GIS]

#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>
GRASS GIS <https://grass.osgeo.org>