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If anyone is willing to share/provide me with some data, I will acknowledge this and provide reference in my publication.
That having been said, AERONET is another data source with reasonable coverage.
Another idea is to start with the original in situ data that were submitted to SeaBASS, as you can find more in situ data points there than just backtracking from other validation searches. Use the "Bio-optical" search type. Change the search parameters to the Landsat-8 date range, and pick just the products you are interested in at the bottom of the page, where you should either write "Rrs" in the search bar (if you want only files that contain already calculated in situ Rrs) or else check the AOP box (those results plus others, including some where you might have to calculate Rrs from profiled measurements.) You can then look through the bundle of individual files to dig out data points of interest.
However, there are certain data sources used for SeaBASS validation that can't be found using the bio-optical search, for example, MOBY and AERONET-OC data. Those data aren't distributed in the bio-optical search because they weren't formally submitted to SeaBASS and it would be redundant to host them here when they are already in other databases. You can only find those in situ values in successful validation results, but otherwise you should consult their websites if you want to download more of their data.
Following your advice, if I wanted to use Rrs=LWn/F0. Wondering if I need to do any unit conversion, given Rrs is units of sr-1 and Lwn in another unit. Or I can simply use them (Thuiller's F0 and Lwn from AERONET OC or SeaBAS archive straight away)?
Lwn --> uW/cm^2/nm/sr
F0 --> uW/cm^2/nm
Therefore, you would be able to take the ratio of the two to get 1/sr. However, as a sanity check, it is good practice to verify that the /fields= and /units= headers in the SeaBASS data file(s) you are working with do in fact contain those units.
For more information on SeaBASS standard units, see:
And for more information on SeaBASS headers and file metadata, see:
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