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Online Data: Standard VGPM

1080 by 2160 Monthly HDF files from SeaWiFS 5.2 Data

note: all data updated 3.10.2009 reflect usage of q5 to q8 avhrr sst input data; please replace previous downloads with these values

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]

Data Selection

You can either download annual tar files with the data we have for each year, or you can access individual monthly files at the end of this page.

Annual Tar Files

vgpm.s.1997.tar • 1997 data; ~ 16 MB of compressed data
vgpm.s.1998.tar • 1998 data; ~ 49 MB of compressed data
vgpm.s.1999.tar • 1999 data; ~ 49 MB of compressed data
vgpm.s.2000.tar • 2000 data; ~ 50 MB of compressed data
vgpm.s.2001.tar • 2001 data; ~ 50 MB of compressed data
vgpm.s.2002.tar • 2002 data; ~ 50 MB of compressed data
vgpm.s.2003.tar • 2003 data; ~ 50 MB of compressed data
vgpm.s.2004.tar • 2004 data; ~ 50 MB of compressed data
vgpm.s.2005.tar • 2005 data; ~ 50 MB of compressed data
vgpm.s.2006.tar • 2006 data; ~ 50 MB of compressed data
vgpm.s.2007.tar • 2007 data; ~ 50 MB of compressed data

hdf file naming convention

vgpm.yyyyddd.hdf.gz

vgpm = net primary production (units of mg C / m**2 / day) based on the standard vgpm algorithm
yyyy = year
ddd= day of year of the start of each monthly 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 standard vgpm, using seawifs chl, avhrr sst, and seawifs par as input; clouds have been filled in the input data using our own gap-filling software.

For citation, please reference the original vgpm paper by Behrenfeld and Falkowski, 1997a as well as the Ocean Productivity site for the data.

Monthly Files

  1997 1998 1999 2000
  January no data vgpm.1998001 vgpm.1999001 vgpm.2000001
  February no data vgpm.1998032 vgpm.1999032 vgpm.2000032
  March no data vgpm.1998060 vgpm.1999060 vgpm.2000061
  April no data vgpm.1998091 vgpm.1999091 vgpm.2000092
  May no data vgpm.1998121 vgpm.1999121 vgpm.2000122
  June no data vgpm.1998152 vgpm.1999152 vgpm.2000153
  July no data vgpm.1998182 vgpm.1999182 vgpm.2000183
  August no data vgpm.1998213 vgpm.1999213 vgpm.2000214
  September vgpm.1997244 vgpm.1998244 vgpm.1999244 vgpm.2000245
  October vgpm.1997274 vgpm.1998274 vgpm.1999274 vgpm.2000275
  November vgpm.1997305 vgpm.1998305 vgpm.1999305 vgpm.2000306
  December vgpm.1997335 vgpm.1998335 vgpm.1999335 vgpm.2000336

  2001 2002 2003 2004
  January vgpm.2001001 vgpm.2002001 vgpm.2003001 vgpm.2004001
  February vgpm.2001032 vgpm.2002032 vgpm.2003032 vgpm.2004032
  March vgpm.2001060 vgpm.2002060 vgpm.2003060 vgpm.2004061
  April vgpm.2001091 vgpm.2002091 vgpm.2003091 vgpm.2004092
  May vgpm.2001121 vgpm.2002121 vgpm.2003121 vgpm.2004122
  June vgpm.2001152 vgpm.2002152 vgpm.2003152 vgpm.2004153
  July vgpm.2001182 vgpm.2002182 vgpm.2003182 vgpm.2004183
  August vgpm.2001213 vgpm.2002213 vgpm.2003213 vgpm.2004214
  September vgpm.2001244 vgpm.2002244 vgpm.2003244 vgpm.2004245
  October vgpm.2001274 vgpm.2002274 vgpm.2003274 vgpm.2004275
  November vgpm.2001305 vgpm.2002305 vgpm.2003305 vgpm.2004306
  December vgpm.2001335 vgpm.2002335 vgpm.2003335 vgpm.2004336

  2005 2006 2007 2008
  January vgpm.2005001 vgpm.2006001 vgpm.2007001 no data
  February vgpm.2005032 vgpm.2006032 vgpm.2007032 no data
  March vgpm.2005060 vgpm.2006060 vgpm.2007060 no data
  April vgpm.2005091 vgpm.2006091 vgpm.2007091 no data
  May vgpm.2005121 vgpm.2006121 vgpm.2007121 no data
  June vgpm.2005152 vgpm.2006152 vgpm.2007152 no data
  July vgpm.2005182 vgpm.2006182 vgpm.2007182 no data
  August vgpm.2005213 vgpm.2006213 vgpm.2007213 no data
  September vgpm.2005244 vgpm.2006244 vgpm.2007244 no data
  October vgpm.2005274 vgpm.2006274 vgpm.2007274 no data
  November vgpm.2005305 vgpm.2006305 vgpm.2007305 no data
  December vgpm.2005335 vgpm.2006335 vgpm.2007335 no data



Last modified: 09 October 2009
by:  Robert O'Malley
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