Page 1 of 1

Level 3 VIIRS CHL Product

Posted: Fri Jul 08, 2022 5:54 pm America/New_York
by oceani
Do you offer a level 3 chlorophyll product derived from VIIRS as you do for Aqua and Terra MODIS? For example from: .... just for VIIRS. If so, can you please tell me the URL/.nc filename?



Re: Level 3 VIIRS CHL Product

Posted: Mon Jul 11, 2022 11:15 am America/New_York
by OB General Science - guoqingw
Hi Mark,

Yes, we provide daily VIIRS level 3 mapped data at 4km resolution and more. There are several ways to download the data. On ocean color website (, under the "Data" button, you can click "Direct Data Access", and it will jump to the data directory where you can choose the level of data that you want, then you'll see all the available missions including NOAA20, NOAA21, and SNPP-VIIRS.

Here is a quick link to level3 mapped SNPP-VIIRS data:

Or you can click the "File Search" button under "Data" of the main ocean color page (, then search files based on time, level, etc.. Here, you can find multiple files at a time and batch-download them, and the link you get for each file will be similar to the one you provided.

Under "Data", there is also a "Level 3 Browser" which will lead you to a webpage where you can choose, view and download the products you are looking for.


Re: Level 3 VIIRS CHL Product

Posted: Mon Jul 11, 2022 11:41 am America/New_York
by oceani
Perfect. Thanks.