ACOLITE forum

Hi Quinten,

Please, I was wondering what I can do to improve ACOLITE in the Arctic - I am assuming default settings won't work in such environment (i.e., high latitude)?

Regards.

Hi Chris

My guess the main difficulty will be low sun elevation in general, which may cause problems for the plane parallel assumptions used in 6SV. Another user was using ACOLITE in the Barents Sea, and found that the default processing underestimated the aerosol optical thickness: viewtopic.php?f=7&t=298

In general I find better results for ACOLITE for turbid waters, so the results may also be target dependent.

I hope this helps!

Quinten

Hi Quinten,

Thanks a lot for your response.

Hi Chris

I have recently identified that the low sun zenith angle could be a reason for the general underestimation of the aerosol optical depth. I will need to do some more tests, but will keep you informed.

Quinten

cio wrote: ↑Thu Oct 19, 2023 7:08 am Hi Quinten,

Thanks a lot for your response.

quinten wrote: ↑Fri Oct 20, 2023 1:58 pm Hi Chris

I have recently identified that the low sun zenith angle could be a reason for the general underestimation of the aerosol optical depth. I will need to do some more tests, but will keep you informed.

Quinten

Hi Quinten,

Wondering if you were able to do your testing regarding the discussion above.

Hi Chris

Unfortunately I have not been able to put much time to this issue at low sun elevation. I hope to be able to pick it back up later in the year.

Quinten

Thanks Quinten.