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SeaDAS AC processing using MBAC approach

Posted: Fri Sep 29, 2023 2:46 pm America/New_York
by akashashapure
Which version onwords SeaDAS uses multi-band atmospheric correction approach? Thanks!

Re: SeaDAS AC processing using MBAC approach

Posted: Thu Oct 05, 2023 2:09 pm America/New_York
by OB.DAAC - SeanBailey
The earliest implementation of MBAC in l2gen go back to 2016, however, MBAC has not been implemented as a default approach for any sensor to date. However, it will be used for the OCI instrument on the soon-to-be-launched PACE mission. You can try it out with aer_opt=-18, but it is not supported by all sensors, so your mileage may vary...

Sean

Re: SeaDAS AC processing using MBAC approach

Posted: Fri Nov 03, 2023 6:33 pm America/New_York
by akashashapure
Thank you for your reply.
I am working on HICO image and when I tried aer_opt=-18 it did not work. Do you have any recommendations? Thank you.

Re: SeaDAS AC processing using MBAC approach

Posted: Mon Nov 06, 2023 2:08 pm America/New_York
by OB.DAAC - SeanBailey
Note, I did say "it is not supported by all sensors". The MBAC algorithm uses an uncertainty input file to weight the bands used in the fit. Not all sensors have had this file generated, in fact, for most one does not exist. As we implement MBAC for sensor for which it makes sense, we will generate the required uncertainty file.

Sean

Re: SeaDAS AC processing using MBAC approach

Posted: Wed Nov 22, 2023 2:54 pm America/New_York
by akashashapure
Thank you for your reply!
I was wondering if it would be possible to have a list of sensors it is implemented for. Particularly, other than HICO I was interested in OLI, MSI, and OLCI sensors. I am assuming MBAC is available for OLI and MSI not sure if it is available for OLCI. Thank you for your time.