GEOS-Chem v9-01-03 benchmark history
From Geos-chem
On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for GEOS-Chem v9-01-03.
v9-01-03b
Here is the assessment form for 1-month benchmark simulation v9-01-03b.
| Description | |
|---|---|
| New features added into GEOS-Chem: |
|
| Developer name(s) and institution(s): |
|
| Version, resolution, met fields used: | v9-01-03, GEOS-5 (47L), 4x5 |
| 1-month benchmark finished on: | Tue Dec 13 12:20:47 EST 2011 |
| Performance statistics: |
|
| Compared to previous benchmark: | v9-01-03a |
| This update will impact: (select all that apply with boldface) |
Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): Tropopause |
| Plots may be viewed at: | ftp://ftp.as.harvard.edu/pub/exchange/mpayer/1mo_quick_look/v9-01-03b/ |
| Metrics | |
| Global mean OH (from log file): | 13.2811407896285 x 105 molec/cm3 |
| Methyl chloroform lifetime: | 4.7161 years |
| Did either of these change by more than 5%? | No |
| At the SURFACE, list all species that changed by 10% or more: | PAN, ACET, R4N2 |
| Comments on SURFACE differences: | ACET generally decreases 10-50%, strongest decreases over the oceans due to elimination of the (incorrect) ocean source. Smaller relative changes over the main continental emission regions. PAN decreases by 10-25% over most of the NH oceans. Weak decreases for R4N2 in a couple spots. |
| At 500 hPa, list all species that changed by 10% or more: | ACET, R4N2 |
| Comments on 500 hPa differences: | ACET decreases of 10-25% over many regions at 500hPa. Weak decreases for R4N2 in a couple spots. |
| In the ZONAL MEAN differences, list all species that changed by 10% or more: | ACET, PAN |
| Comments on ZONAL MEAN differences: | Changes exceeding 10% for ACET and PAN, consistent with the above. |
| In the EMISSION RATIO maps, list all species that changed by 10% or more: | ACET |
| Comments on EMISSION RATIO differences: | Changes as expected based on emission updates. |
| Additional or summary comments: | |
| Approval | |
| Requires further investigation: | No |
| Approved: | Yes (--Dbm 11:17, 14 December 2011 (EST)) |
| Date of approval: | 12-14-2011 |
--Melissa Payer 13:42, 13 December 2011 (EST)
v9-01-03a
Here is the assessment form for 1-month benchmark simulation v9-01-03a.
| Description | |
|---|---|
| New features added into GEOS-Chem: | |
| Developer name(s) and institution(s): |
|
| Version, resolution, met fields used: | v9-01-03, GEOS-5 (47L), 4x5 |
| 1-month benchmark finished on: | Wed Dec 7 16:06:38 EST 2011 |
| Performance statistics: |
|
| Compared to previous benchmark: | v9-01-02s |
| This update will impact: (select all that apply with boldface) |
Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Anthro Emiss, Biogenic Emiss, Biomass Emiss, Photolysis, Chemistry, Other (please specify): Tropopause |
| Plots may be viewed at: | ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v9-01-03a/ |
| Metrics | |
| Global mean OH (from log file): | 13.2473124589166 x 105 molec/cm3 |
| Methyl chloroform lifetime: | 4.7300 years |
| Did either of these change by more than 5%? | No |
| At the SURFACE, list all species that changed by 10% or more: | PAN (downwind of South America), ALK4 over oceanic basins, ISOP downwind of South America, MEK tropics, MVK, MACR (downwind of South America), PMN, PPN, PRPE, N2O5, DMS |
| Comments on SURFACE differences: | Sort of makes sense. Changes are in regions that are NOx starved (South America) or cold (the loss from GLPAN will be greatest). Changes are small overall and almost always negative. The changes for DMS are relatively large (10-20% decrease) |
| At 500 hPa, list all species that changed by 10% or more: | ALK4, ISOP, MEK, MVK, MACR, PRPE (large changes in polar regions > 20%), DMS |
| Comments on 500 hPa differences: | Changes are generally bigger than at the surface (temperature dependence of GLPAN) |
| In the ZONAL MEAN differences, list all species that changed by 10% or more: | ISOP (but at high altitude and in polar regions), ALK4 in polar regions, MEK, MVK, MACR, PMN, PRPE |
| Comments on ZONAL MEAN differences: | Small changes overall (in an absolute sense). DMS has the largest change. |
| In the EMISSION RATIO maps, list all species that changed by 10% or more: | none |
| Comments on EMISSION RATIO differences: | |
| Additional or summary comments: | |
| Approval | |
| Requires further investigation: | No |
| Approved: | Yes |
| Date of approval: | Approved 08 Dec 2011 |
--Bob Y. 11:21, 8 December 2011 (EST)
--Melissa Payer 13:48, 13 December 2011 (EST)
