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HOW TO CREATE COMPOSITE LAYER FOR 10YEAR CHL A DATA FOR SPATIO TEMPORAL ANALYSIS USING SEADAS

MODIS AQUA CHL A 8DAY TEMPRESOLUTION AND 4KM SPATIAL RESOL DOWNLOADED MAPPED DATA TYPE.

Besides 8DAY, you will also find MONTH and YEAR binned data for AQUA MODIS CHL data here - https://oceandata.sci.gsfc.nasa.gov/directdataaccess/Level-3%20Binned/Aqua-MODIS/2015/01-Jan-2015/ for 2015. You can bin them together with l3bin - https://seadas.gsfc.nasa.gov/help-9.1.0/processors/ProcessL3bin.html

You can also use l2bin to bin the L2 files together with your desired spatial resolution - https://seadas.gsfc.nasa.gov/help-9.1.0/processors/ProcessL2bin.html

In SEADAS 101: Data Processing & Analysis Training https://seadas.gsfc.nasa.gov/tutorials/seadas101/,
you might find the following helpful -
https://seadas.gsfc.nasa.gov/tutorials/seadas101/#spatial%20composite
and
https://seadas.gsfc.nasa.gov/tutorials/seadas101/#temporal%20composite