MODIS Aqua Ocean Color (Chlorophyll-a Concentration)

The NASA Aqua satellite contains the MODIS (Moderate Resolution Imaging Spectro- radiometer) sensor that is used for detecting chlorophyll-a concentrations (ocean color) in the world's oceans, among other applications. The Level 3 standard mapped image (SMI) chlorophyll-a dataset has a monthly temporal resolution and 4.6 km (at the equator) spatial resolution. The SMI dataset is an image representation of binned MODIS data (more detailed information on the SMI format can be found at

Note: The data is remotely accessed via the NOAA Ocean Watch's Thredds server.

Chlorophyll-a Concentration (mg m^-3)
Zonal Global by 0.05 deg
Meridional Global by 0.05 deg
Vertical Surface  
Temporal Jul 4, 2002 to August 21, 2017 by 7 days [Weekly]
Jul 2002 to Jul 2017 by 1 month [Monthly]
Static? no
Volume External
Server public: Remote rate:
Acquired Oct 18, 2013 (Updated Sep 2017)
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