Home NPP Products LIDAR Frequently Asked Questions
Site Map Land / Ocean Merge Field / Lab Data Highlights / Results


Please note:

The Ocean Productivity Site has stopped updating its data.
We hope to continue operations shortly.

(09.12.2024)


Online Data: CbPM

1080 by 2160 8day HDF files from GSM v5 Data (using MODIS)

please note:

the original CbPM has been replaced
by the new version by Westberry, et al

access the new CbPM data
from here


note: all data updated 9.28.2010 using the new MODIS.r2009.1 and GSM v5 reprocessing results

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.

different grid size or timestep?

[Note: ancillary input data are available here for those who are interested]

Other Variables

Additional output data besides NPP are available from the CbPM, and can be found on these pages:

Data Selection

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 convention

cbpm.yyyyddd.hdf.gz

cbpm = net primary production (units of mg C / m**2 / day ) based on the 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 original cbpm algorithm, using gsm chl and gsm bbp (both modis derived products), modis par, and mld as input; clouds have been filled in the input data using our own gap-filling software.

For citation, please reference the original cbpm paper by Behrenfeld et al. (2005) and the Ocean Productivity site for the data.

8day Files

starting day
001
009
017
025
033
041
049
057
065
073
081
089
097
105
113
121
129
137
145
153
161
169
177
185
193
201
209
217
225
233
241
249
257
265
273
281
289
297
305
313
321
329
337
345
353
361


Last modified: 16 June 2025
by:  Toby Westberry

_Home_____NPP Products_____LIDAR__FAQ sheet

Site Map Land / Ocean Merge Field / Lab Highlights / Results