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Input Data: CHL

1080 by 2160 Monthly HDF files from MODIS 1.1 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.

different grid size or timestep?

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

chl.2002.tar • 2002 data: ~ 25 MB of compressed data
chl.2003.tar • 2003 data: ~ 51 MB of compressed data
chl.2004.tar • 2004 data: ~ 51 MB of compressed data
chl.2005.tar • 2005 data: ~ 51 MB of compressed data
chl.2006.tar • 2006 data: ~ 51 MB of compressed data
chl.2007.tar • 2007 data: ~ 51 MB of compressed data
chl.2008.tar • 2008 data: ~ 51 MB of compressed data
chl.2009.tar • 2009 data: ~ 26 MB [last file is June]

hdf file naming convention

chl.yyyyddd.hdf.gz

chl = chlorophyll (units of mg / m**3 )
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".

clouds have been filled in the input data using our own gap-filling software.

For citation, please reference the Ocean Productivity site for the data.

Monthly Files

  2002 2003 2004 2005
  January no data chl.2003001 chl.2004001 chl.2005001
  February no data chl.2003032 chl.2004032 chl.2005032
  March no data chl.2003060 chl.2004061 chl.2005060
  April no data chl.2003091 chl.2004092 chl.2005091
  May no data chl.2003121 chl.2004122 chl.2005121
  June no data chl.2003152 chl.2004153 chl.2005152
  July chl.2002182 chl.2003182 chl.2004183 chl.2005182
  August chl.2002213 chl.2003213 chl.2004214 chl.2005213
  September chl.2002244 chl.2003244 chl.2004245 chl.2005244
  October chl.2002274 chl.2003274 chl.2004275 chl.2005274
  November chl.2002305 chl.2003305 chl.2004306 chl.2005305
  December chl.2002335 chl.2003335 chl.2004336 chl.2005335

  2006 2007 2008 2009
  January chl.2006001 chl.2007001 chl.2008001 chl.2009001
  February chl.2006032 chl.2007032 chl.2008032 chl.2009032
  March chl.2006060 chl.2007060 chl.2008061 chl.2009060
  April chl.2006091 chl.2007091 chl.2008092 chl.2009091
  May chl.2006121 chl.2007121 chl.2008122 chl.2009121
  June chl.2006152 chl.2007152 chl.2008153 chl.2009152
  July chl.2006182 chl.2007182 chl.2008183 not yet
  August chl.2006213 chl.2007213 chl.2008214 not yet
  September chl.2006244 chl.2007244 chl.2008245 no data
  October chl.2006274 chl.2007274 chl.2008275 no data
  November chl.2006305 chl.2007305 chl.2008306 no data
  December chl.2006335 chl.2007335 chl.2008336 no data


Last modified: 21 September 2009
by:  Robert O'Malley
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