Hi, I am registering in GRASS GIS 7.0 some 20000 MODIS LST maps following this scheme (4 maps per day):
... MYD11A1.A2014232.LST_Night_1km.reconstruct|2014-08-20 01:30 MOD11A1.A2014232.LST_Day_1km.reconstruct|2014-08-20 10:30 MYD11A1.A2014232.LST_Day_1km.reconstruct|2014-08-20 13:30 MOD11A1.A2014232.LST_Night_1km.reconstruct|2014-08-20 22:30 ... I fed this list into t.register. All runs fine I think, yet I don't understand the "Granularity" output here: t.info modis_lst_reconstructed +-------------------- Space Time Raster Dataset -----------------------------+ | | +-------------------- Basic information -------------------------------------+ | Id: ........................ modis_lst_reconstructed@modis_lst_reconstructed | Name: ...................... modis_lst_reconstructed | Mapset: .................... modis_lst_reconstructed | Creator: ................... metz | Temporal type: ............. absolute | Creation time: ............. 2015-09-12 12:10:49.603736 | Modification time:.......... 2015-09-12 12:15:04.975590 | Semantic type:.............. mean +-------------------- Absolute time -----------------------------------------+ | Start time:................. 2000-03-12 10:30:00 | End time:................... 2015-04-02 13:30:00 | Granularity:................ 180 minutes | Temporal type of maps:...... point +-------------------- Spatial extent ----------------------------------------+ | North:...................... 5447750.0 | South:...................... 770000.0 | East:.. .................... 7716750.0 | West:....................... 2168000.0 | Top:........................ 0.0 | Bottom:..................... 0.0 +-------------------- Metadata information ----------------------------------+ | Raster register table:...... raster_map_register_ad09fa9530ea41bd826fc5fe56b0e47c | North-South resolution min:. 250.0 | North-South resolution max:. 250.0 | East-west resolution min:... 250.0 | East-west resolution max:... 250.0 | Minimum value min:.......... 10610.0 | Minimum value max:.......... 13852.0 | Maximum value min:.......... 14426.0 | Maximum value max:.......... 19283.0 | Aggregation type:........... None | Number of registered maps:.. 20156 | | Title: | Reconstructed LST for AQUA and TERRA with 4 overpasses per 24h | Description: | Reconstructed LST for AQUA and TERRA with 4 overpasses per 24h | Command history: | # 2015-09-12 12:10:49 | t.create output="modis_lst_reconstructed" | type="strds" semantictype="mean" temporaltype="absolute" | title="Reconstructed LST for AQUA and TERRA with 4 overpasses per 24h" | description="Reconstructed LST for AQUA and TERRA with 4 overpasses per 24h" | # 2015-09-12 12:15:05 | t.register -i input="modis_lst_reconstructed" | type="rast" file="/tmp/filenames_modis_lst_maps.txt.tgrass.txt" | +----------------------------------------------------------------------------+ Why a granularity of 180 minutes? If RTFM, where to find it? thanks, Markus
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