Difference between revisions of "GEOS-Chem v9-01-02 benchmark history"
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− | |In the ZONAL MEAN | + | |In the ZONAL MEAN differences, list all species that changed by 10% or more: |
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For short simulations that can finish within the time limits of the computatational queues (such as this 1-month benchmark simulation), we do not use the CSPEC restart file. Therefore, when comparing v9-01-01c to v9-01-01a, we should see no significant differences (except perhaps for negligible numerical noise). | For short simulations that can finish within the time limits of the computatational queues (such as this 1-month benchmark simulation), we do not use the CSPEC restart file. Therefore, when comparing v9-01-01c to v9-01-01a, we should see no significant differences (except perhaps for negligible numerical noise). | ||
− | The | + | The slight difference in the very last digit of the MCL lifetime is attributable to the fact that for v9-01-02c, we use the surface area values saved out directly from GEOS-Chem. In v9-01-02a, these were computed in the IDL code (which will yield similar results but maybe not 100% strictly numerically equal to double precision). |
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!Approval | !Approval | ||
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|The color scale saturates (implying large differences) for ISOP, H2O2, MVK, MACR, PMN, PRPE, CH2O, MP, NH3, NIT | |The color scale saturates (implying large differences) for ISOP, H2O2, MVK, MACR, PMN, PRPE, CH2O, MP, NH3, NIT | ||
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− | |In the ZONAL MEAN | + | |In the ZONAL MEAN differences, list all species that changed by 10% or more: |
|NOx, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, MVK, MACR, PMN, PRPE, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, OH | |NOx, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, MVK, MACR, PMN, PRPE, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, OH | ||
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|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. | |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 | + | |In the ZONAL MEAN differences, list all species that changed by 10% or more: |
|NOx, N2O5, NIT, NH3 | |NOx, N2O5, NIT, NH3 | ||
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Revision as of 14:47, 21 July 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.
v9-01-02c
Here is the assessment form for 1-month benchmark simulation v9-01-02c.
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: | Wed Jul 20 16:47:00 EDT 2011 |
Compared to previous benchmark: | v9-01-02a |
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, Diagnostics, Other (please specify): Chemical species restart file |
Plots may be viewed at: | ftp://ftp.as.harvard.edu/pub/geos-chem/1mo_benchmarks/v9-01-02c/ |
Metrics | |
Global mean OH (from log file): | 13.1838752732688 x 105 molec cm-3 |
Methyl chloroform lifetime: | 4.7493 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: | |
At 500 hPa, list all species that changed by 10% or more: | none |
Comments on 500 hPa differences: | |
In the ZONAL MEAN differences, list all species that changed by 10% or more: | none |
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: | none |
Additional or summary comments: | NOTE: This update corrects an erroneous situation in the chemical species restart file (aka "CSPEC restart file". This fix ONLY gets invoked for long GEOS-Chem simulations that have to be broken into several stages for the purpose of submitting to a batch queue system. When each run stage ends, GEOS-Chem will write the chemical species concentrations into a restart file. When the next stage begins, GEOS-Chem will read the chemical species information back into the CSPEC array (which gets passed to the SMVGEAR and KPP solvers).
For short simulations that can finish within the time limits of the computatational queues (such as this 1-month benchmark simulation), we do not use the CSPEC restart file. Therefore, when comparing v9-01-01c to v9-01-01a, we should see no significant differences (except perhaps for negligible numerical noise). The slight difference in the very last digit of the MCL lifetime is attributable to the fact that for v9-01-02c, we use the surface area values saved out directly from GEOS-Chem. In v9-01-02a, these were computed in the IDL code (which will yield similar results but maybe not 100% strictly numerically equal to double precision). |
Approval | |
Requires further investigation: | No |
Approved: | YES |
Date of approval: | 21 Jul 2011 |
--Bob Y. 10:30, 21 July 2011 (EDT)
v9-01-02b
Here is the assessment form for 1-month benchmark simulation v9-01-02b.
NOTE: This benchmark requires further investigation, so we are moving ahead with other updates. (Bob Y, 21 Jul 2011)
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: | Wed Jul 6 15:14:37 EDT 2011 |
Compared to previous benchmark: | v9-01-02a |
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, Diagnostics, Other (please specify): |
Plots may be viewed at: | ftp://ftp.as.harvard.edu/pub/geos-chem/1mo_benchmarks/v9-01-02b/ |
Metrics | |
Global mean OH (from log file): | 13.0621353054878 x 105 molec cm-3 |
Methyl chloroform lifetime: | 4.7987 years |
Did either of these change by more than 5%? | No |
At the SURFACE, list all species that changed by 10% or more: | NOx, PAN, ALK4, ISOP, HNO3, H2O2, RCHO, MVK, MACR, PMN, PPN, PRPE, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs |
Comments on SURFACE differences: | The color scale saturates (implying large differences) for HNO3, H2O2, CH2O, MP, SO2, NH3, NIT |
At 500 hPa, list all species that changed by 10% or more: | NOx, ISOP, HNO3, H2O2, MVK, MACR, PMN, PRPE, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, NITs |
Comments on 500 hPa differences: | The color scale saturates (implying large differences) for ISOP, H2O2, MVK, MACR, PMN, PRPE, CH2O, MP, NH3, NIT |
In the ZONAL MEAN differences, list all species that changed by 10% or more: | NOx, ALK4, ISOP, HNO3, H2O2, MEK, ALD2, MVK, MACR, PMN, PRPE, CH2O, N2O5, HNO4, MP, DMS, SO2, SO4, SO4s, MSA, NH3, NH4, NIT, OH |
Comments on ZONAL MEAN differences: | Changes are typically are mid and high latitudes. |
In the EMISSION RATIO maps, list all species that changed by 10% or more: | none |
Comments on EMISSION RATIO differences: | none |
Additional or summary comments: | |
Approval | |
Requires further investigation: | Pending discussion with Daniel Jacob. (Helen Amos, 07 Jul 2011) |
Approved: | |
Date of approval: |
--Bob Y. 10:30, 21 July 2011 (EDT)
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): | 13.1838752732688 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 differences, 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. 10:30, 21 July 2011 (EDT)