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Tom, The site you reference is a NOAA site, not NASA. The site does indicate that the MODIS data they present comes from NASA, however the VIIRS data is from NOAA. That said, I looked at the corresponding NASA product, and overall, the Aqua MODIS and SNPP VIIRS Kd490 products agree quite well. Certa...

Yes, indeed that file has double vision. ...not sure how it managed to repeat itself, but we'll dig into it and see if we can resolve the issue.

Sean

Yes, the EFR data are available (as of this writing, through 16 July 2023).
Select the EFR checkbox for the desired sensor, select the TC option and click the 'Reconfigure page' button and you should see the available data.

Sean

You can also select the TC (true color) images, and the current browser will display the available OLCI data.

Sean

Based on the information you provided, I believe you are looking at the bin file (L3b). The bin file is not a raster image format (as the mapped - L3m - product is), rather is is more akin to a spreadsheet. It only contains values where there are data. The bin file format is described here: https://...

Yves, While it is true that we produce and distribute remote sensing reflectance data for MODIS that include the higher spatial resolution bands (469nm, 555, and 645nm), none of the ocean color products we produce use bands other than the nominal 1km spatial resolution ("ocean") bands. For...

For efficient storage. A 16bit integer takes less space to store than a 32bit float.

Sean

The measurement of chlorophyll concentration is indeed a volumetric measurement, thus the units of milligrams per cubic meter. The algorithm employed can relate the observed surface reflectance spectrum to a chlorophyll concentration as it was developed using coincident in situ measurements of remot...

SeaDAS does not support OCM3.

Sean

Yes, rhos is Rayleigh corrected reflectance.

Sean