------------------------
Horizontal resolution:
------------------------
2 deg latitude x 2.5 deg longitude, except at the poles where latitudinal
resolution is 1 deg:
Longitude center [-180:2.5:177.5], latitude center [-89.5 -88:2:88 89.5].
Total longitudinal grid cell = 144, latitudinal grid cell = 91.
For explicit lat lon for each gridbox, see "gocart.latlon.2x2.5".

------------------------
Vertical resolution:
------------------------
o GEOS-1 (1980-1995): 20 sigma layers centered at:
     &     9.93936E-01,9.71300E-01,9.29925E-01,8.74137E-01,8.07833E-01,
     &     7.34480E-01,6.57114E-01,5.78390E-01,5.00500E-01,4.24750E-01,
     &     3.52000E-01,2.83750E-01,2.22750E-01,1.72150E-01,1.32200E-01,
     &     1.00050E-01,7.30000E-02,4.49750E-02,2.90000E-02,9.50000E-03 /

o GEOS-1.3 (GEOS-STRAT, 1996-1997): 26 vertical sigma layers centered at:
     &     9.93935E-01,9.71300E-01,9.29925E-01,8.75060E-01,8.12500E-01,
     &     7.45000E-01,6.74500E-01,6.04500E-01,5.36500E-01,4.71500E-01,
     &     4.10000E-01,3.52500E-01,3.01500E-01,2.57977E-01,2.20273E-01,
     &     1.87044E-01,1.57881E-01,1.32807E-01,1.11722E-01,9.40350E-02,
     &     7.92325E-02,6.68725E-02,5.65740E-02,4.47940E-02,2.88250E-02,
     &     9.97900E-03  /

o GEOS-3 (GEOS-Terra, 2000-2002): 30 vertical sigma layers centered at:
     &     9.98547E-01,9.94147E-01,9.86350E-01,9.74300E-01,9.56950E-01,
     &     9.33150E-01,9.01750E-01,8.61500E-01,8.11000E-01,7.50600E-01,
     &     6.82900E-01,6.10850E-01,5.37050E-01,4.63900E-01,3.93650E-01,
     &     3.28275E-01,2.69500E-01,2.18295E-01,1.74820E-01,1.38840E-01,
     &     1.09790E-01,8.66900E-02,6.84150E-02,5.39800E-02,4.25750E-02,
     &     3.35700E-02,2.39900E-02,1.36775E-02,5.01750E-03,5.30000E-04 /

------------------------
Time resolution:
------------------------
Sub-daily: every 6 hours at 6Z, 12Z, 18Z, 24Z.
Daily avg
Monthly avg