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Welcome to the Custom Products path. Here you can access ocean net primary production (NPP) data for alternative NPP algorithms and using either SeaWiFS or MODIS data. You will also find visual comparisons of NPP algorithm products at different temporal scales (e.g., annual, seasonal), brief descriptions of each algorithm, and code for your own algorithm implementation. To navigate the Custom Products page, begin by selecting one of the top-level tabs located above (i.e., Online Data, Visual Comparision, Model Description, Code).

To proceed directly to online data, simply click on one of the three NPP images below. The first image will provide access to standard VGPM algorithm products, the second gives NPP estimates from the Eppley-VGPM, and the third access to NPP data from the Carbon-based Production Model (CbPM). NPP products from the VGPM and Eppley-VGPM are available for both SeaWiFS and MODIS data, while CbPM products are only provided (at this time) for the SeaWiFS record. Online products are provided as monthly 1080 x 2060 global grids in hdf format. As with our Standard Products, you can get all Custom Products in formats that better suit your needs by filling out a data request form that you can access from here .

SeaWiFS based estimates, covering 1997 - 2006
Standard VGPM Eppley-VGPM CbPM

MODIS based estimates, covering 2002 - 2006
Standard VGPM Eppley-VGPM

Last Modified: 04 December 2006
by:  Robert O'Malley
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