Difference between revisions of "GEOS-Chem v9-01-02 benchmark history"
From Geos-chem
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|Additional or summary comments: | |Additional or summary comments: | ||
− | | There is an unidentified OpenMP error which contributes to differences shown here, as confirmed by independent tests of consecutive evaluations of a single executable compiled with and without parallelization. The impacts of this OpenMP error are typically less than a fraction of a percent, and negligible in terms of absolute value, with the exception of NIT and NH3. This is an issue to investigate further. | + | | |
+ | *There is an unidentified OpenMP error which contributes to differences shown here, as confirmed by independent tests of consecutive evaluations of a single executable compiled with and without parallelization. The impacts of this OpenMP error are typically less than a fraction of a percent, and negligible in terms of absolute value, with the exception of NIT and NH3. This is an issue to investigate further. | ||
+ | *I think this code update obfuscates the need to copy CSPEC to CSPEC_FULL and back when variable tropopause is turned on, as this fix now recalls the proper mapping from the previous time step when performing partitioning. Perhaps a future update could clean this up. | ||
|-bgcolor="#cccccc" | |-bgcolor="#cccccc" | ||
!Approval | !Approval |
Revision as of 18:45, 28 June 2011
On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for GEOS-Chem v9-01-02.
v9-01-02a
Here is the assessment form for 1-month benchmark simulation v9-01-02a.
Description | |
---|---|
New features added into GEOS-Chem: | |
Developer name(s) and institution(s): |
|
Version, resolution, met fields used: | v9-01-02, GEOS-5 (47L), 4x5 |
1-month benchmark finished on: | Mon Jun 13 18:02:07 EDT 2011 |
Compared to previous benchmark: | v9-01-01 |
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/geos-chem/1mo_benchmarks/v9-01-02a/ |
Metrics | |
Global mean OH (from log file): | 13.1877841861589 x 105 molec/cm3 |
Methyl chloroform lifetime: | 4.7490 years |
Did either of these change by more than 5%? | No |
At the SURFACE, list all species that changed by 10% or more: | None |
Comments on SURFACE differences: | None |
At 500 hPa, list all species that changed by 10% or more: | NIT, NH3 |
Comments on 500 hPa differences: | Follow up calculations indicate that these changes are owing to an unresolved OpenMP issue, not the v9-01-02a code updates. NIT seems particularly sensitive to this issue, and this probably drives changes in NH3. |
In the ZONAL MEAN PLOTS, list all species that changed by 10% or more: | NOx, N2O5, NIT, NH3 |
Comments on ZONAL MEAN differences: |
|
In the EMISSION RATIO maps, list all species that changed by 10% or more: | None |
Comments on EMISSION RATIO differences: | No changes in emissions. |
Additional or summary comments: |
|
Approval | |
Requires further investigation: | See above |
Approved: | Daven Henze |
Date of approval: | 06/28/2011 |
--Bob Y. 15:06, 23 June 2011 (EDT)