Online Data: CbPM
2160 by 4320 8day HDF files from VIIRS (GSM) Data
To get these data, please click on the file name(s) that you have selected and save locally on your computer. The individual hdf files are gzipped (use gunzip to uncompress) and the tar files contain gzipped hdf files.
[Note: ancillary input data are available here for those who are interested]
Additional output data besides NPP are available from the CbPM, and can be found on these pages:
You can either download annual tar files with the data we have for each year,
or you can access the individual 8day files at the end of this page.
Annual Tar Files
hdf file naming conventioncbpm.yyyyddd.hdf.gz
cbpm = net primary production (units of mg C / m**2 / day ) based on the updated cbpm algorithm
yyyy = year
ddd= day of year of the start of each 8day file
hdf = file type
gz = compressed with gzip (uncompress with gunzip)
The hdf files have metadata contained within them, which can be examined, for example, with program "ncdump".
npp is based on the updated cbpm algorithm, using gsm chl and gsm bbp (both modis derived products), modis par and k490, as well as nitrocline depth and mld for input; clouds have been filled in the input data using our own gap-filling software.
For citation, please reference the updated cbpm paper by Westberry et al. (2008) and the Ocean Productivity site for the data.