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