[GRASS-user] Question about GRASS raster temporal data

Thomas Adams tea3rd at gmail.com
Sat Jan 17 08:06:47 PST 2015


All:

I am just getting started using GRASS raster temporal data analysis
capabilities (both GRASS 7.0 and 7.1svn as of this AM) -- pretty cool, with
some nice features. I have looked through the wiki:

http://grasswiki.osgeo.org/wiki/Temporal_data_processing

and saw the use of g.gui.tplot
<http://grass.osgeo.org/grass71/manuals/g.gui.tplot.html> which worked for
my small data set (see t.info output below) -- what I need, however, are
the values and dates extracted by g.gui.tplot exported to a text file. How
do I get these? I have looked through all the modules and can not find what
I need.

Best,
Tom


GRASS 7.0.0beta3 (newster):~/grass/data > t.info type=strds
input=ann_max_flow
 +-------------------- Space Time Raster Dataset
-----------------------------+
 |
|
 +-------------------- Basic information
-------------------------------------+
 | Id: ........................ ann_max_flow at adams
 | Name: ...................... ann_max_flow
 | Mapset: .................... adams
 | Creator: ................... teaiii
 | Temporal type: ............. absolute
 | Creation time: ............. 2015-01-17 05:28:15.023686
 | Modification time:.......... 2015-01-17 05:38:10.846286
 | Semantic type:.............. mean
 +-------------------- Absolute time
-----------------------------------------+
 | Start time:................. 1997-01-01 00:00:00
 | End time:................... 2014-01-01 00:00:00
 | Granularity:................ 1 year
 | Temporal type of maps:...... interval
 +-------------------- Spatial extent
----------------------------------------+
 | North:...................... -4895850.0
 | South:...................... -5224462.5
 | East:.. .................... 2695575.0
 | West:....................... 2424112.5
 | Top:........................ 0.0
 | Bottom:..................... 0.0
 +-------------------- Metadata information
----------------------------------+
 | Raster register table:......
raster_map_register_9d88390c739741bbb43e68759f90c4c9
 | North-South resolution min:. 4762.499512
 | North-South resolution max:. 4762.5
 | East-west resolution min:... 4762.499512
 | East-west resolution max:... 4762.5
 | Minimum value min:.......... 0.209504
 | Minimum value max:.......... 2.55081
 | Maximum value min:.......... 856.120972
 | Maximum value max:.......... 5188.450195
 | Aggregation type:........... None
 | Number of registered maps:.. 17
 |
 | Title:
 | Potomac annual maximum flows
 | Description:
 | Potomac annual maximum flows derived from NOAA/NWS RDHM DHMTF analysis
1996-2013
 | Command history:
 | # 2015-01-17 05:28:15
 | t.create type="strds" temporaltype="absolute"
 |     output="ann_max_flow" title="Potomac annual maximum flows"
 |     description="Potomac annual maximum flows derived from NOAA/NWS RDHM
DHMTF analysis 1996-2013"
 | # 2015-01-17 05:38:10
 | t.register -i type="rast" input="ann_max_flow"
 |     file="potomac_max_flow_list.txt" start="1997-01-01" increment="1
year"
 |
 +----------------------------------------------------------------------------+
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