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Up Topic Special Topics / Inherent Optical Properties Workshop / a = 5,7767 (locked)
- - By Mauricio Date 2011-01-18 23:51
What does it mean the absorbance value 5,7767 for a, adg and/or aph products? It looks like an error or some kind of light supersaturation over the sensor. 
Parent - - By seanbailey Date 2011-01-19 19:33
If you check the l2_flags for the pixels set to 5.7767, you'll probably find that the PRODFAIL flag is set.
These are bad values (in that the algorithm encountered a failure condition) and should be ignored.

Sean
Parent - - By Mauricio Date 2011-01-27 15:48
Thank you, Sean. I understand that, but may this value represent some kind of supersaturation of the sensor? I've noted that this value usually takes place at points which image color is dark red.
Parent - By seanbailey Date 2011-01-27 20:54
If that were the case the HILT flag would be set.  PRODFAIL simply means one (or more) of the products produced for that pixel
encountered an algortihm failure condition.

Sean
Up Topic Special Topics / Inherent Optical Properties Workshop / a = 5,7767 (locked)