Difference between revisions of "GEOS-Chem v8-02-01"
From Geos-chem
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Will contain everything in [[#v8-01-04|v8-01-04]] plus the following: | Will contain everything in [[#v8-01-04|v8-01-04]] plus the following: | ||
| − | #Glyoxal chemistry (May Fu) | + | #Glyoxal chemistry (May Fu) ('''''NOTE: This is an option which is turned off by default''''') |
#Updated J(O1D) cross sections (Lin Zhang) | #Updated J(O1D) cross sections (Lin Zhang) | ||
#Updated reaction rates (Jingqiu Mao, Dylan Millet, Palmer group @ U. Edinburgh) | #Updated reaction rates (Jingqiu Mao, Dylan Millet, Palmer group @ U. Edinburgh) | ||
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! Met Field Type | ! Met Field Type | ||
! Anthro Emissions | ! Anthro Emissions | ||
| + | ! Photolysis | ||
! Chemical Mechanism | ! Chemical Mechanism | ||
! Annual Mean OH<br>[10<sup>5</sup> molec/cm3] | ! Annual Mean OH<br>[10<sup>5</sup> molec/cm3] | ||
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| GEOS-4x5<br>version 5.0.1<br>w/ "quick fix"<br>for optical depth<br><br>spinup: 2005<br>run: 2005 | | GEOS-4x5<br>version 5.0.1<br>w/ "quick fix"<br>for optical depth<br><br>spinup: 2005<br>run: 2005 | ||
| GEIA/Piccot<br>EDGAR emissions<br>EMEP European emissions<br>BRAVO Mexican emissions<br>David Streets 2006 emissions<br>CAC Canadian emissions<br>EPA/NEI99 with ICARTT fix<br>EDGAR ship emissions<br>ARCTAS ship SO2 emissions<br>Anthro scale year 2005 | | GEIA/Piccot<br>EDGAR emissions<br>EMEP European emissions<br>BRAVO Mexican emissions<br>David Streets 2006 emissions<br>CAC Canadian emissions<br>EPA/NEI99 with ICARTT fix<br>EDGAR ship emissions<br>ARCTAS ship SO2 emissions<br>Anthro scale year 2005 | ||
| + | | "old" jv_spec.dat | ||
| "old" | | "old" | ||
| 10.294 | | 10.294 | ||
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| GEOS-5 4x5 version 5.1.0,<br>"reprocessed" met fields<br><br>spinup: 2004<br>run: 2005 | | GEOS-5 4x5 version 5.1.0,<br>"reprocessed" met fields<br><br>spinup: 2004<br>run: 2005 | ||
| " " | | " " | ||
| − | | "old | + | | "old" jv_spec.dat |
| + | | "old" mechanism | ||
| 11.099 | | 11.099 | ||
|-align="center" | |-align="center" | ||
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| " " | | " " | ||
| " " | | " " | ||
| − | | " | + | | "updated" jv_spec.dat |
| + | | http://www.as.harvard.edu:16080/ctm/geos/wiki_docs/chemistry/chemical_mechanism_v8-02-01_v2.pdf "updated" chemical mechanism] | ||
| 11.817 | | 11.817 | ||
|-align="center" | |-align="center" | ||
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| Observations | | Observations | ||
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Revision as of 16:00, 6 May 2009
Overview
CHEMISTRY RELEASE date TBD
Will contain everything in v8-01-04 plus the following:
- Glyoxal chemistry (May Fu) (NOTE: This is an option which is turned off by default)
- Updated J(O1D) cross sections (Lin Zhang)
- Updated reaction rates (Jingqiu Mao, Dylan Millet, Palmer group @ U. Edinburgh)
- HO2 uptake (Lyatt Jaegle)
- Updated dust single scattering albedo (Randall Martin)
1-year benchmarks
Run0
Three GEOS-Chem model versions were compared to each other:
| Color | Quantity Plotted | Met Field Type | Anthro Emissions | Photolysis | Chemical Mechanism | Annual Mean OH [105 molec/cm3] |
|---|---|---|---|---|---|---|
| Red | v8-01-04 Run1 | GEOS-4x5 version 5.0.1 w/ "quick fix" for optical depth spinup: 2005 run: 2005 |
GEIA/Piccot EDGAR emissions EMEP European emissions BRAVO Mexican emissions David Streets 2006 emissions CAC Canadian emissions EPA/NEI99 with ICARTT fix EDGAR ship emissions ARCTAS ship SO2 emissions Anthro scale year 2005 |
"old" jv_spec.dat | "old" | 10.294 |
| Green | v8-01-04 Run2 | GEOS-5 4x5 version 5.1.0, "reprocessed" met fields spinup: 2004 run: 2005 |
" " | "old" jv_spec.dat | "old" mechanism | 11.099 |
| Blue | v8-02-01 Run0 | " " | " " | "updated" jv_spec.dat | http://www.as.harvard.edu:16080/ctm/geos/wiki_docs/chemistry/chemical_mechanism_v8-02-01_v2.pdf "updated" chemical mechanism] | 11.817 |
| Black | Observations |
SUMMARY:
- v8-01-04 Run2 vs. v8-01-04 Run1 is a clean comparison between the GEOS-5.0.1 and GEOS-5.1.0 met products.
- v8-02-01 Run0 vs. v8-01-04 Run2 is a clean validation the new chemistry mechanism and updates that were added into v8-02-01.
- All runs used the same:
- A.T.E. Algorithm = RPMARES
- Advection routine: "new" tpcore
- Biogenic emissions: "new" MEGAN AEF's for isoprene
- GFED2 biomass emissions
- Aircraft NOx emissions
- Photolysis: approximate random cloud overlap
The output plots for Run0 may be downloaded from:
ftp ftp.as.harvard.edu cd pub/geos-chem/1yr_benchmarks/v8-02-01/geos5/2005/Run2/output
