Land pixel definition in MODIS SST/ Chlorophyll level 3 data
Posted: Tue Jun 27, 2023 5:13 pm America/New_York
Dear Support-Team,
I have a question regarding the definition of land pixels in the MODIS Level 3 SST and Chlorophyll dataset (monthly averages, 4km spatial resolution).
When I compare the land pixels of the dataset (pixels spanning multiple datasets, always nan) with a digital elevation model (DEM), I see strong discrepancies. In fact, many of the pixels that are >0m in the DEM, and thus intrinsically land pixels have SST/chlorophyll values. So I was wondering how these ocean/land pixels are distinguished in the MODIS product. Is there a land/sea mask? What is the applied definition for land and sea pixels?
Thank you very much for your help.
I have a question regarding the definition of land pixels in the MODIS Level 3 SST and Chlorophyll dataset (monthly averages, 4km spatial resolution).
When I compare the land pixels of the dataset (pixels spanning multiple datasets, always nan) with a digital elevation model (DEM), I see strong discrepancies. In fact, many of the pixels that are >0m in the DEM, and thus intrinsically land pixels have SST/chlorophyll values. So I was wondering how these ocean/land pixels are distinguished in the MODIS product. Is there a land/sea mask? What is the applied definition for land and sea pixels?
Thank you very much for your help.