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


Input Data: MLD

1080 by 2160 Monthly HDF files from HYCOM Model

note: all data updated July 9, 2014, to carry near-shore mld values

HYCOM source:
expt_91.1: day 113 (2016) to present
expt_91.1: day 097 (2014) to 105 (2016)
expt_91.0: day 233 (2013) to 089 (2014)
expt_90.9: day 001 (2011) to 225 (2013)
expt_90.8: day 121 (2009) to 361 (2010)
expt_90.6: day 265 (2008) to 113 (2009)

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: a discussion of our selection of MLD data is available here for those who are interested]

  • hycom : highest resolution, global coverage, data from day 265 (2008) to present
  • fnmoc : good resolution, latitude limited (+/-69.49), data from day 169 (2005) to present
  • soda : ok resolution, global coverage, data from day 249 (1997) to end of 2004
  • tops : interpolated from 1-degree resolution, global coverage, data from day 001 (2005) to 225 (2010), isothermal layer thickness

different timestep?
different model?

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

mld.hycom.2008.tar• 2008 data: ~   15 MB of compressed data
mld.hycom.2009.tar• 2009 data: ~   60 MB of compressed data
mld.hycom.2010.tar• 2010 data: ~   60 MB of compressed data
mld.hycom.2011.tar• 2011 data: ~   60 MB of compressed data
mld.hycom.2012.tar• 2012 data: ~   60 MB of compressed data
mld.hycom.2013.tar• 2013 data: ~   60 MB of compressed data
mld.hycom.2014.tar• 2014 data: ~   60 MB of compressed data
mld.hycom.2015.tar• 2015 data: ~   60 MB of compressed data
mld.hycom.2016.tar• 2016 data: ~   60 MB of compressed data
mld.hycom.2017.tar• 2017 data: ~   10 MB of compressed data

hdf file naming convention

mld.yyyyddd.hdf.gz

mld = mixed layer depth (units of m )
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".

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

Monthly Files

 2008200920102011201220132014201520162017
January----- 2009001 2010001 2011001 2012001 2013001 2014001 2015001 2016001 2017001
February----- 2009032 2010032 2011032 2012032 2013032 2014032 2015032 2016032 2017032
March----- 2009060 2010060 2011060 2012061 2013060 2014060 2015060 2016061-----
April----- 2009091 2010091 2011091 2012092 2013091 2014091 2015091 2016092-----
May----- 2009121 2010121 2011121 2012122 2013121 2014121 2015121 2016122-----
June----- 2009152 2010152 2011152 2012153 2013152 2014152 2015152 2016153-----
July----- 2009182 2010182 2011182 2012183 2013182 2014182 2015182 2016183-----
August----- 2009213 2010213 2011213 2012214 2013213 2014213 2015213 2016214-----
September----- 2009244 2010244 2011244 2012245 2013244 2014244 2015244 2016245-----
October 2008275 2009274 2010274 2011274 2012275 2013274 2014274 2015274 2016275-----
November 2008306 2009305 2010305 2011305 2012306 2013305 2014305 2015305 2016306-----
December 2008336 2009335 2010335 2011335 2012336 2013335 2014335 2015335 2016336-----


Last modified: 09 May 2016
by:  Robert O'Malley

_Home_____NPP Products_____LIDAR__FAQ sheet

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