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ECCO Version 4: Third Release       [ECCO v4-r3] [ftp://ecco.jpl.nasa.gov/Version4/Release3/]
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- This directory contains the UNADJUSTED 'ECCO version 4, release 3' atmospheric forcing that is basically 
   the ERA-Interim forcing interpolated onto model grid. The control adjustment can be computed by 
   subtracting the unadjusted forcing here from the adjusted one in 
   ftp://ecco.jpl.nasa.gov/Version4/Release3/input_forcing/.
  README                            This file
  eccov4r3_unadj_dlw_YYYY           downward longwave radiation
  eccov4r3_unadj_dsw_YYYY           downward shortwave radiation
  eccov4r3_unadj_rain_YYYY          precipitation
  eccov4r3_unadj_spfh2m_YYYY        near-surface atmospheric specific humidity
  eccov4r3_unadj_tmp2m_degC_YYYY    near-surface air temperature
  eccov4r3_unadj_ustr_YYYY          zonal wind stress
  eccov4r3_unadj_vstr_YYYY          meridional wind stress
  eccov4r3_wspeed_YYYY              near-surface wind speed

- Each forcing file is a yearly file with 6-hourly records (3Z, 9Z, 15Z, and 21Z) on native
   ECCO v4 grid. YYYY is for a particular year from 1992 to 2015. 

- References:
  Fukumori, I., O. Wang, I. Fenty, G. Forget, P. Heimbach, and R. M. Ponte, 2017:
   ECCO Version 4 Release 3, http://hdl.handle.net/1721.1/110380, doi:1721.1/110380.
   Available at ftp://ecco.jpl.nasa.gov/Version4/Release3/doc/v4r3_estimation_synopsis.pdf
  Forget, G., J.-M. Campin, P. Heimbach, C. N. Hill, R. M. Ponte, and C. Wunsch, 2015:
   ECCO version 4: an integrated framework for non-linear inverse modeling and global ocean
   state estimation. Geoscientific Model Development, 8, 3071-3104, doi:10.5194/gmd-8-3071-2015

- Software:
  The ECCO v4-r3 files were produced using the ’checkpoint65u’ versions of the general circulation 
   model (MITgcm and ECCO v4 settings) and Matlab analysis toolboxes (gcmfaces and MITprof).
  These software versions are available at http://mitgcm.org/download/other_checkpoints/
   and http://mit.ecco-group.org/opendap/ecco_for_las/version_4/checkpoints/contents.html

- Contact Us:
  ecco-support@mit.edu (please subscribe via http://mailman.mit.edu/mailman/listinfo/ecco-support)

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README file revision history:
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- README file creation                             [Ou Wang] [2017/06/12]