Difference between revisions of "Overview of GMAO met data products"
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== GEOS-1 and GEOS-STRAT == | == GEOS-1 and GEOS-STRAT == | ||
| − | GEOS-1 was the first GMAO met field data product compatible with GEOS-Chem. GEOS-STRAT was a continuation of GEOS-1, but with a finer vertical grid. | + | GEOS-1 was the first GMAO met field data product compatible with GEOS-Chem. GEOS-STRAT was a continuation of GEOS-1, but with a finer vertical grid. Both products have been superceded by newer versions of GMAO met products and are no longer supported in GEOS-Chem. |
=== GEOS-1 features === | === GEOS-1 features === | ||
Revision as of 20:47, 27 July 2010
Contents
GMAO data products used by GEOS-Chem
| GEOS-1 | GEOS-STRAT | GEOS-3 | GEOS-4 | GEOS-5 | MERRA | |
|---|---|---|---|---|---|---|
| Native # of levels | 20 sigma | 26 sigma | 48 sigma | 55 hybrid | 72 hybrid | 72 hybrid |
| Native grid | 2° x 2.5° | 2 x 2.5 | 1° x 1° | 1° x 1.25° | 0.5° x 0.666° | 0.5 x 0.666 and 1 x 1.25 |
| Native file format | Binary | Binary | HDF4-EOS | HDF4-EOS | HDF4-EOS | HDF4-EOS |
| Regridded to | 2° x 2.5° 4 x 5 |
2° x 2.5° 4° x 5° |
1° x 1° nested °2 x 2.5° 4° x 5°l |
2° x 2.5° 4° x 5° |
0.5° x 0.666° nested 2° x 2.5° 4° x 5° |
4 x 5 |
| Temporal coverage | 1985 - 1995 | 1996 - 1998 | 2000 - 2002 | 1985 - 2007 | 2004 - present | 1979 - 2010 |
NOTES:
- GEOS-1 and GEOS-STRAT are now obsolete and no longer supported by GEOS-Chem
- GEOS-3 is still supported but we recommend users to migrate to GEOS-4 or GEOS-5.
- MERRA data will be made available at 4 x 5 resolution in the near future. MERRA is a long-term reanalysis done with version GEOS-5.2.0.
--Bob Y. 16:24, 27 July 2010 (EDT)
GEOS-1 and GEOS-STRAT
GEOS-1 was the first GMAO met field data product compatible with GEOS-Chem. GEOS-STRAT was a continuation of GEOS-1, but with a finer vertical grid. Both products have been superceded by newer versions of GMAO met products and are no longer supported in GEOS-Chem.
GEOS-1 features
| Assimilation GCM used: | NASA/GSFC GEOS1 GCM |
| Native horizontal grid: | 2° x 2.5° |
| Native vertical grid: | 20 pure-sigma layers, model top at 10 hPa |
| Native file format: | NASA PHOENIX format (binary Fortran unformatted) |
| Temporal coverage: | 1985-1995 |
| We regridded to: | 4 x 5; 20 pure-sigma layers |
| Strengths: |
|
| Weaknesses: |
|
GEOS-STRAT features
| Assimilation GCM used: | NASA/GSFC GEOS1 GCM |
| Native horizontal grid: | 2° x 2.5° |
| Native vertical grid: | 46 pure-sigma layers, model top at 0.1 hPa |
| Native file format: | NASA PHOENIX format (binary Fortran unformatted) |
| Temporal coverage: | 1996-1997 (some 1998) |
| We regridded to: | 4 x 5; 26 pure-sigma layers |
| Strengths: |
|
| Weaknesses: |
|
--Bob Y. 16:43, 27 July 2010 (EDT)
