<p dir="ltr">Hi,<br>
>From 10:30 to 13:30 are 180 minutes. This is the smallest gap size between the time instances. And it is the greatest common divider between all gaps in the time series.</p>
<p dir="ltr">Ciao<br>
Sören</p>
<div class="gmail_quote">Am 12.09.2015 12:29 schrieb "Markus Neteler" <<a href="mailto:neteler@osgeo.org">neteler@osgeo.org</a>>:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Hi,<br><br>I am registering in GRASS GIS 7.0 some 20000 MODIS LST maps following this scheme (4 maps per day):<br><br>...<br>MYD11A1.A2014232.LST_Night_1km.reconstruct|2014-08-20 01:30<br>MOD11A1.A2014232.LST_Day_1km.reconstruct|2014-08-20 10:30<br>MYD11A1.A2014232.LST_Day_1km.reconstruct|2014-08-20 13:30<br>MOD11A1.A2014232.LST_Night_1km.reconstruct|2014-08-20 22:30<br>...<br></div><div>I fed this list into t.register.<br></div><div><br>All runs fine I think, yet I don't understand the "Granularity" output here:<br><br><br><span style="font-family:monospace,monospace"><a href="http://t.info" target="_blank">t.info</a> modis_lst_reconstructed<br> +-------------------- Space Time Raster Dataset -----------------------------+<br> | |<br> +-------------------- Basic information -------------------------------------+<br> | Id: ........................ modis_lst_reconstructed@modis_lst_reconstructed<br> | Name: ...................... modis_lst_reconstructed<br> | Mapset: .................... modis_lst_reconstructed<br> | Creator: ................... metz<br> | Temporal type: ............. absolute<br> | Creation time: ............. 2015-09-12 12:10:<a href="tel:49.603736" value="+49603736" target="_blank">49.603736</a><br> | Modification time:.......... 2015-09-12 12:15:04.975590<br> | Semantic type:.............. mean<br> +-------------------- Absolute time -----------------------------------------+<br> | Start time:................. 2000-03-12 10:30:00<br> | End time:................... 2015-04-02 13:30:00<br> | Granularity:................ 180 minutes<br> | Temporal type of maps:...... point<br> +-------------------- Spatial extent ----------------------------------------+<br> | North:...................... 5447750.0<br> | South:...................... 770000.0<br> | East:.. .................... 7716750.0<br> | West:....................... 2168000.0<br> | Top:........................ 0.0<br> | Bottom:..................... 0.0<br> +-------------------- Metadata information ----------------------------------+<br> | Raster register table:...... raster_map_register_ad09fa9530ea41bd826fc5fe56b0e47c<br> | North-South resolution min:. 250.0<br> | North-South resolution max:. 250.0<br> | East-west resolution min:... 250.0<br> | East-west resolution max:... 250.0<br> | Minimum value min:.......... 10610.0<br> | Minimum value max:.......... 13852.0<br> | Maximum value min:.......... 14426.0<br> | Maximum value max:.......... 19283.0<br> | Aggregation type:........... None<br> | Number of registered maps:.. 20156<br> |<br> | Title:<br> | Reconstructed LST for AQUA and TERRA with 4 overpasses per 24h<br> | Description:<br> | Reconstructed LST for AQUA and TERRA with 4 overpasses per 24h<br> | Command history:<br> | # 2015-09-12 12:10:49<br> | t.create output="modis_lst_reconstructed"<br> | type="strds" semantictype="mean" temporaltype="absolute"<br> | title="Reconstructed LST for AQUA and TERRA with 4 overpasses per 24h"<br> | description="Reconstructed LST for AQUA and TERRA with 4 overpasses per 24h"<br> | # 2015-09-12 12:15:05<br> | t.register -i input="modis_lst_reconstructed"<br> | type="rast" file="/tmp/filenames_modis_lst_maps.txt.tgrass.txt"<br> |<br> +----------------------------------------------------------------------------+<br></span><br>Why a granularity of 180 minutes? If RTFM, where to find it?<br><br></div>thanks,<br></div>Markus<br></div>
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