Nikos: > # so, here it goes... seems to run fine > i.landsat.toar band_prefix=landsat_postfire_east_sterea_ellas > method=uncorrected sensor=5 date=2007-09-05 solar_elevation=52.4986238 > product_date=2007-09-05
... > r.info landsat_postfire_east_sterea_ellas.toar.6 -r > min=203.36601783578 > max=319.083636050686 > No way the min value is true ( 203 K = -70.15 C -- irrational for Greece - > for the moment! -) > The max value (319 K = 45.85 C) seems to fit for Greece but not for > September! Maybe for July/August. looking at the image/histogram again those min and max are outliers I guess. The main body of information starts at ~280 K (6.85 C) and stops at ~307 K (33.85 C). I am not sure how to explain the min < 270 K (those values lie mostly within water bodies), but the max > 310 K areas are burned surfaces (a few days old burn scars) which will explain the 45 C (at surface) in a September day in Greece. So, those values seem rational after all. Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
