Kindly tell me Up to what depth does the MODIS Aqua satellite provide data for sea surface temperature (SST), chlorophyll-a (Chl-a), and particulate organic carbon (POC) in the ocean?
in meters
Depth of data provided
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atifa_nadeem
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OB.DAAC - SeanBailey
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Re: Depth of data provided
SST is a skin temperature, not a bulk temperature.
The products derived from the optical measurements (i.e. Rrs) do not have a defined depth. They are "surface" values, though the definition of surface is not set either, but is assumed to be equivalent to the first optical depth which varies with water mass. For example, in coastal waters with lots of optically active constituents (absorbs and scatterers), the first optical depth can be rather shallow (on the order of a few meters or even less). For clear, open ocean waters that can be on the order of 30 to 50 meters.
Hope this helps,
Sean
The products derived from the optical measurements (i.e. Rrs) do not have a defined depth. They are "surface" values, though the definition of surface is not set either, but is assumed to be equivalent to the first optical depth which varies with water mass. For example, in coastal waters with lots of optically active constituents (absorbs and scatterers), the first optical depth can be rather shallow (on the order of a few meters or even less). For clear, open ocean waters that can be on the order of 30 to 50 meters.
Hope this helps,
Sean