Earthdata Forum

Hi,
Following switching threshold proposed by Liu et al (2019) https://doi.org/10.1016/j.isprsjprs.2019.04.013.
I’m trying to apply the switching scheme using the Rrs(645) > 0.009 sr−1 instead of the Turbidity index. I’m wondering if there’s any possibility to set it directly in the L2gen or should I process the NIR and SWIR AC and then, mersh the outputs without using Seadas?.

No, you cannot pass a parameter to l2gen to modify the Shi and Wang NIR/SWIR switching algorithm to use an Rrs_645 threshold in place of the turbidity index.

If you process both SWIR and NIR in separate runs you can use SeaDAS' Math Band operator to blend the output.

Sean

Thank you very much for your reply!.