[GRASS-user] Low reflectance values with i.atcorr and Landsat 8

John, Lisa lisa.john at stud.uni-goettingen.de
Mon Jun 15 05:25:34 PDT 2015


Hi Micha,

did you refer to the input range?
I did so and checked bands 1-9 with r.info -r. Top of atmosphere reflectance values are all in the range of -0.01 - 2.12. The negative value seems to be a outlier and I check in addition with the range 0-2.12.
I used these values for the input range in i.atcorr -r and used 0,1 as output range.
However I get even smaller reflectance values (0.15 respectively 0.29 for vegetation in band5)

Regards, Lisa.
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