Nikos: > > Did you finally used i.landsat.toar for the Landsat5 - TM bands?
Hamish: > I haven't tried with landsat 5 data from glovis yet, have some scenes > on order, expect them to arrive in the next few days. It seems to be > working for me with landsat7 data. Band 61 temperatures seem plausible > anyway & metadata file is read cleanly. And example of metadata (of the image I am using): <http://edcsns17.cr.usgs.gov/cgi- bin/EarthExplorer/phtml/results/display_full.phtml?cseq=3119&row=3&fgdc=N&entity_id=LT51830332007248MOR00>. I guess it's structure is quite different than the "meta" of ETM+ data. > > I am trying to use the module on the LT51830332007248MOR00 > > image(s) and have several (expected) problems, like: > > (note that the metadata file I downloaded via GLOVis has a > > ".meta" extension) > > 1. the "LT51830332007248MOR00.meta" isn't read correctly or > > the module is looking for a string other than the "date_acquired = > > 20070905" string which is the only "date-string" included in the ".meta" > > file > > 2. does not recognize the solar elevation value > > (the above "cases" are mentioned in the manual, so manual > > feed is required here) > > 3. after manually providing the "solar_elevation" and the > > "product_date" and using the "-v" flag, some random (?) segfaults occur. > I am a bit suspicious of the if(flag->answer) bits of the code, if pointers > and boolean integers are getting mixed up. > I think over the next week or two I'll continue to make small cleanups and > improvements to the i.landsat.toar and i.landsat.acca code. > > 4. without the "-v" flag it runs but seems to take too much > > time? OK, the image set is large ( 7654 cols x 7127 rows x 7 bands). --- > > Is it really taking so long or is there something wrong? > how much time? for me it takes a few minutes. Oh man, I guess I am doing something wrong [ again :-( ]. It takes too much time here. I broke the process after >30 min and set up a new (smaller) computational region (of my interest). I'll give it another try and report back. Thanks for all of your work Hamish, Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
