Hi Laurent, I had previously started playing with Itzï but reported problems; now, it seems to work to a point. I have followed your tutorial here: https://www.itzi.org/user-manual/ but when I do this I get:
GRASS 7.0.3 (nc_spm_08_grass7):/media/teaiii/development/grass > itzi run param.file.txt ERROR: Unable to execute sql statement. There is no temporal database connection defined for mapset <PERMANENT> Traceback (most recent call last): File "/home/teaiii/.local/bin/itzi", line 11, in <module> sys.exit(main()) File "/home/teaiii/.local/lib/python2.7/site-packages/itzi/itzi.py", line 40, in main args.func(args) File "/home/teaiii/.local/lib/python2.7/site-packages/itzi/itzi.py", line 93, in itzi_run sim_param=conf.sim_param) File "/home/teaiii/.local/lib/python2.7/site-packages/itzi/simulation.py", line 75, in __init__ self.gis.read(self.in_map_names) File "/home/teaiii/.local/lib/python2.7/site-packages/itzi/gis.py", line 189, in read elif self.name_is_stds(self.format_id(map_name)): File "/home/teaiii/.local/lib/python2.7/site-packages/itzi/gis.py", line 138, in name_is_stds if tgis.SpaceTimeRasterDataset(name).is_in_db(): File "/usr/local/grass-7.0.3/etc/python/grass/temporal/abstract_dataset.py", line 370, in is_in_db return self.base.is_in_db(dbif) File "/usr/local/grass-7.0.3/etc/python/grass/temporal/base.py", line 314, in is_in_db dbif.execute(sql, mapset=self.mapset) File "/usr/local/grass-7.0.3/etc/python/grass/temporal/core.py", line 956, in execute "mapset <%(mapset)s>" % {"mapset": mapset})) File "/usr/local/grass-7.0.3/etc/python/grass/pygrass/messages/__init__.py", line 269, in fatal raise FatalError(message) grass.exceptions.FatalError: Unable to execute sql statement. There is no temporal database connection defined for mapset <PERMANENT> [Raster MASK present] I'm using GRASS 7.0.3 and Itzï 16.8 Any thoughts? Regards, Tom On Thu, Sep 22, 2016 at 2:27 PM, Laurent C. <lrn...@gmail.com> wrote: > Hello Rich, > > For the infiltration, if you can determine the soil texture, then you > could estimate the Green-Ampt parameters using [1] > What do you want to do in that area? Perform hydrological/overland > flow analysis? > If it is the case, you might give Itzï a try: > https://www.itzi.org/ > Some of the parameters could be estimated (like friction coefficient). > > Regards, > Laurent > > [1] Rawls, W., Brakensiek, D., and Miller, N. (1983). "Green‐ampt > Infiltration Parameters from Soils Data." J. Hydraul. Eng., > 10.1061/(ASCE)0733-9429(1983)109:1(62), 62-70. > > > 2016-09-22 13:09 GMT-05:00 Rich Shepard <rshep...@appl-ecosys.com>: > > The project area -- in farmland -- is small (< 20 ha) and essentially > > flat with elevation differences less than 1 meter. The LiDAR raster cells > > (imported from ARC Grid format) have a cell size of 3x3 international > feet; > > elevation resolution is 0.013 feet. > > > > While r.slope.aspect generates an aspect map, the slope map is blank. > The > > maps for dx, dy, and relief display variations. > > > > While I have some soil data, it's sparse and I haven't (yet) found > > infiltration rates; the rainfall data is very low and from a station > several > > miles away. I probably do not have all required input data for > r.sim.water > > or r.watershed. > > > > Based on your much more extensive experiences applying GRASS to limited > > areas please suggest approaches that might be appropriate for this > project. > > It might be that all I can do is create detailed contour maps of the area > > and describe the situation qualitatively without robust quantitative > > analyses. > > > > TIA, > > > > Rich > > > > _______________________________________________ > > grass-user mailing list > > grass-user@lists.osgeo.org > > http://lists.osgeo.org/mailman/listinfo/grass-user > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user > -- Thomas E Adams, III 1724 Sage Lane Blacksburg, VA 24060 1 (513) 739-9512 (cell)
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