Hamish: > > Probably we should concentrate on the North Carolina dataset for common > > tests... its landsat mapset has: ... > > Auto-cloud determination for the NC 1987 Landsat5 scene is no good.
Right, it does not look good. # rename lsat5_1987_10 to lsat5_1987.1 (same for the rest of the bands of course) # DN to TOA (from metadata at Glovis: "sun elevation =39.71119266") i.landsat.toar band_prefix=lsat5_1987 method=uncorrected sensor=5 date=1987-10-14 solar_elevation=39.71119266 product_date=1987-10-14 # uncorrected, 2-pass i.landsat.acca -5 -2 band_prefix=lsat5_1987.toar output=lsat5_1987.toar.acca --o --v # cloud detection is really bad # single pass i.landsat.acca -5 band_prefix=lsat5_1987.toar output=lsat5_1987.toar.acca --o --v # as noted by Hamish I think, seems to partially follow the road network... !? Given that the NC lsat data set represents untouched DN's, perhaps it has to do with "old vs new" calibration parameters? Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
