More details, using i.landsat.toar under `g.version -g`: version=6.4.4svn revision=58178
The uncorrected method delivers some "Temperatures" ??: r.info -hr KR_B.Radiance.61 min=7.64787401574803 max=9.12377952755905 Data Source: Data Description: generated by i.landsat.toar Comments: Radiance of Landsat-7 ETM+ (method uncorrected) ----------------------------------------------------------------- Acquisition date (and time) ........... 2002-07-14 (3.1864 h) Production date ....................... 2013-10-17 Earth-sun distance (d) ................ 1.0165044 Sun elevation (and azimuth) ........... 53.54784 (53.92998) Digital number (DN) range ............. 1 to 255 Calibration constants (Lmin to Lmax) .. +0.00000 to +17.04000 DN to Radiance (gain and bias) ........ +0.06709 and -0.06709 Temperature (K1 and K2) ............... 0.000 and 0.000 ------------------------------------------------------------------ but the DOS1 method does not: r.info -hr KR_B.ToAR.DOS1.61 min=-nan max=-nan Data Source: Data Description: generated by i.landsat.toar Comments: Temperature of Landsat-7 ETM+ (method dos1) ----------------------------------------------------------------- Acquisition date (and time) ........... 2002-07-14 (3.1864 h) Production date ....................... 2013-10-17 Earth-sun distance (d) ................ 1.0165044 Sun elevation (and azimuth) ........... 53.54784 (53.92998) Digital number (DN) range ............. 1 to 255 Calibration constants (Lmin to Lmax) .. +0.00000 to +17.04000 DN to Radiance (gain and bias) ........ +0.06709 and -0.06709 Temperature (K1 and K2) ............... 0.000 and 0.000 ------------------------------------------------------------------ Nikos
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