GEOS-Chem v11-01 benchmark history

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Revision as of 14:46, 28 July 2015 by Lizzie Lundgren (Talk | contribs) (v11-01b)

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On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for GEOS-Chem v11-01.

1-year benchmarks

v11-01b-RnPbBe

A 1-year Rn-Pb-Be simulation was performed using GEOS-Chem v11-01b. The simulation utilized 4° x 5° GEOS-FP met fields for the year 2013, with a 4-year spinup. For comparison of the Pb-210 and Be-7 budgets to previous versions, please see the following posts on the Rn-Pb-Be simulation wiki page:

  1. Budget of Pb210 from 1-year benchmark simulations
  2. Budget of Be7 from 1-year benchmark simulations

You may view the benchmark plots for the simulation by pointing your browser to:

http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v11-01/v11-01b/RnPbBe/output/

--Melissa Sulprizio (talk) 20:26, 20 July 2015 (UTC)

v11-01b-Run1

Three GEOS-Chem model versions were compared to each other:

Color Quantity Plotted Met Type Year Emissions Chemistry mechanism Wet deposition Annual Mean OH
[105 molec/cm3]
Red v10-01i-Run0 GEOS-FP,
72L, 4x5
2013 HEMCO emissions component fixes:

UCX chemistry mechanism Same as v9-01-03e-Run0 11.125
Green v11-01b-Run0 GEOS-FP,
72L, 4x5
2013 + Update DMS climatology to Lana
+ Improved dust size distribution scheme
+ Density of OA update
+ Update of PMN + O3 reaction products in globchem.dat file
+ Bug fix for black carbon in ucx_mod.F
+ Impaction scavenging for hydrophobic BC
+ Homogeneous IN removal
+ Now treat DST2-DST4 as coarse mode in wet scavenging
TBD
Blue v11-01b-Run1 GEOS-FP,
72L, 4x5
2013 " " Benchmark chemistry mechanism, includes " " TBD
Black Observations            

The output plots for Run0 (both PostScript and PDF format) may be downloaded from:

ftp ftp.as.harvard.edu
cd gcgrid/geos-chem/1yr_benchmarks/v11-01/v11-01b/Run1/output
mget *

You may also view the PDF files online by pointing your browser to

http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v11-01/v11-01b/Run1/output/

--Melissa Sulprizio (talk) 20:26, 20 July 2015 (UTC)

v11-01b-Run0

Three GEOS-Chem model versions were compared to each other:

Color Quantity Plotted Met Type Year Emissions Chemistry mechanism Wet deposition Annual Mean OH
[105 molec/cm3]
Red v10-01h-Run0 GEOS-FP,
72L, 4x5
2013 HEMCO emissions component updates:

UCX chemistry mechanism Same as v9-01-03e-Run0 11.092
Green v10-01i-Run0 GEOS-FP,
72L, 4x5
2013 HEMCO emissions component fixes:

" " " " 11.125
Blue v11-01b-Run0 GEOS-FP,
72L, 4x5
2013 + Update DMS climatology to Lana
+ Improved dust size distribution scheme
+ Density of OA update
+ Update of PMN + O3 reaction products in globchem.dat file
+ Bug fix for black carbon in ucx_mod.F
+ Impaction scavenging for hydrophobic BC
+ Homogeneous IN removal
+ Now treat DST2-DST4 as coarse mode in wet scavenging
TBD
Black Observations            

The output plots for Run0 (both PostScript and PDF format) may be downloaded from:

ftp ftp.as.harvard.edu
cd gcgrid/geos-chem/1yr_benchmarks/v11-01/v11-01b/Run0/output
mget *

You may also view the PDF files online by pointing your browser to

http://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/v11-01/v11-01b/Run0/output/

--Melissa Sulprizio (talk) 20:26, 20 July 2015 (UTC)

1-month benchmarks

v11-01b

Here is the assessment form for 1-month benchmark simulation v11-01b.

Description
New features added into GEOS-Chem:

Features affecting the full-chemistry simulation in this benchmark:

Features not affecting the full-chemistry simulation in this benchmark:

Developer name(s) and institution(s):
  • Lana DMS: Tom Breider (Harvard)
  • Impaction scavenging for BCPO: Qiaoqiao Wang (Max Planck Institute)
  • Homogeneous IN removal: Qiaoqiao Wang (Max Planck Institute)
  • Density of OA: Melanie Hammer (Dalhousie), Eloïse Marais (Harvard)
  • Improved dust distribution: Li Zhang (Colorado U.), Daven Henze (Colorado U.)
  • Dust fix for wet scavenging: T. Duncan Fairlie (NASA/LARC)
  • globchem.dat fix: Dylan Millet (UMN)
  • UCX fix for BC: Sebastian Eastham
  • BrC UV absorption: Melanie Hammer (Dalhousie)
  • Acid uptake on dust: T. Duncan Fairlie (NASA/LARC)
  • Marine POA: Brett Gantt (NCSU), Matthew Johnson (NASA Ames)
  • RRTMG fixes: Sebastian Eastham (MIT), David Ridley (MIT)
  • PGI compiler fix: GEOS-Chem Support Team
Version, resolution, met fields used: v11-01, GEOS-FP (72L), 4x5, July 2013
1-month benchmark finished on: Mon Jul 27 18:27:44 2015
Performance statistics:
  • Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU)
  • Wall time: 7:56:50
  • Scalability: 6.7733
Compared to previous benchmark: v11-0a
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):
Unit test results may be viewed at: TBD
  • NOTE: Unit tests for tagged CO were not performed, since this simulation is not yet 100% compatible with HEMCO.
Plots may be viewed at: TBD
Metrics
Global mean OH (from log file): 12.6447244306942 x 105 molec/cm3
Methyl chloroform lifetime: 4.9562 years
Did either of these change by more than 5%? No. The mean OH differs by 0.57%, and the MCF lifetime differs by -0.73%.
At the SURFACE, list all species that changed by 10% or more:
Comments on SURFACE differences:
At 500 hPa, list all species that changed by 10% or more:
Comments on 500 hPa differences:
In the ZONAL MEAN differences, list all species that changed by 10% or more:
Comments on ZONAL MEAN differences:
In the EMISSION RATIO maps, list all species that changed by 10% or more:
Comments on EMISSION RATIO differences:
Additional or summary comments:
Approval
Requires further investigation: TBD
Approved by: TBD
Date of approval: TBD

--Melissa Sulprizio (talk) 17:38, 20 July 2015 (UTC)

v11-01a

Here is the assessment form for 1-month benchmark simulation v11-01a.

Description
New features added into GEOS-Chem:

Features affecting the full-chemistry simulation in this benchmark:

Features not affecting the full-chemistry simulation in this benchmark:

Developer name(s) and institution(s):
Version, resolution, met fields used: v11-01, GEOS-FP (72L), 4x5, July 2013
1-month benchmark finished on: Thurs Jul 02 00:00:12 EDT 2015
Performance statistics:
  • Ran on 8 CPUs of bench@titan-10.as.harvard.edu (2.659 GHz x 8 CPU)
  • Wall time: 7:46:50
  • Scalability: 6.8812
Compared to previous benchmark: v10-01-public-release with SOA on
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): Tracer Unit Conversions, Air Quantities (e.g. box height and air mass), RRTMG
Unit test results may be viewed at: http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v11-01/v11-01a/v11-01a.results.html
  • NOTE: Unit tests for tagged CO were not performed, since this simulation is not yet 100% compatible with HEMCO.
Plots may be viewed at: http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/v11-01/v11-01a/
Metrics
Global mean OH (from log file): 12.5726451325898 x 105 molec/cm3
Methyl chloroform lifetime: 4.9926 years
Did either of these change by more than 5%? No. The mean OH differs by 0.50%, and the MCF lifetime differs by -0.58%.
At the SURFACE, list all species that changed by 10% or more: NO, ISOP, HNO3, MVK, MACR, PMN, N2O5, NH4, NIT, NITs, OCPO, DST1, DST2, DST3, DST4, Br, BrO, HOBr, ISOPN, MOBA, GLYC, MMN, RIP, IEPOX, BrCl, Cl, ClO, ClNO2, ClOO, OClO, Cl2, Cl2O2, MTPA, LIMO, MTPO, ASOA2, ASOA3
Comments on SURFACE differences:
  • All differences are small number differences where concentrations are very low and may be attributed to numerical noise.
    • Especially ISOP and its related species
At 500 hPa, list all species that changed by 10% or more: NO, ISOP, MVK, MACR, PMN, PRPE, NH3, NIT, OCPO, DST3, DST4, Br, ISOPN, MOBA, GLYC, RIP, IEPOX, BrCl, Cl, ClO, ClNO2, ClOO, OClO, Cl2, Cl2O2, MTPA, LIMO, MTPO
Comments on 500 hPa differences:
  • Small differences in NH3 and NIT can be attributed to numerical drift caused by ISORROPIA.
  • All other differences are small number differences where concentrations are very low and therefore can be attributed to numerical noise.
    • Especially ISOP and its related species
In the ZONAL MEAN differences, list all species that changed by 10% or more: NO, ALK4, ISOP, HNO3, MVK, MACR, PMN, PRPE, C3H8, N2O5, SO4s, NH3, NIT, NITs, BCPO, OCPO, DST1, DST2, DST3, DST4, SALC, Br, HBr, BrNO3, ISOPN, MOBA, GLYC, MMN, RIP, IEPOX, OCS, BrCl, CCl4, CH3CCl3, CFC11, H1211, H1301, H24O2, Cl, ClO, ClNO2, ClOO, OClO, Cl2, Cl2O2, MTPA, LIMO, MTPO, ISOA2, TOLU,
Comments on ZONAL MEAN differences:
  • NO, Br, HBr, Cl, ClO, ClOO: Differences for these species are around the South Pole only and reflect small number differences where concentrations are very low.
  • C3H8, N2O5, Br2, BrNO3, HAC, OCS, CCl4, CH3CCl3, CFC11, H1211, H1301, H2402: Differences for these species are in the top few pressure levels only. The small differences occur where concentrations are very low and therefore are attributable to numerical noise.
  • ALK4, PRPE, SO4s, NIT, NITs, BCPO, SALC, TOLU: Differences for these species are only within the stratosphere. The small number differences occur only where concentrations are very low and therefore are attributable to numerical noise.
  • ISOP, HNO3, MVK, MACR, PMN, OCPO, DST1, DST2, DST3, DST4, ISOPN, MOBA, GLYC, MMN, RIP, IEPOX, BrCl, Cl202, Cl2, ClNO2, OClO, Cl2, MTPA, LIMO, MTPO: All differences for these species reflect small number differences where concentrations are very low.
  • Small differences in NH3 and NIT may be attributed to numerical drift caused by ISORROPIA.
  • Some species (NO2, CH4, H2O, OH) show nonzero absolute differences but percent differences less than +/-10%. These are likely caused by the air quantity moisture fixes.
In the EMISSION RATIO maps, list all species that changed by 10% or more: None
Comments on EMISSION RATIO differences:
  • The emission totals for NO changed slightly for several sources: soil and fertilizer (both by -0.000030 Tg N), anthropogenic + biomass burning (by 0.000081 Tg N), and lightning (by 0.005719 Tg N).
-We believe that the small changes in soil NO emissions are due to changes in the atmospheric concentrations associated with the air quantity moisture fixes since these NO emissions are dependent on NOy deposition.
-The small changes in lightning NO emissions appear to arise from the effects of air quantity moisture fixes on variables such as derived cloud top height that affect the lightning parametrization.
-The small changes in anthropogenic + biofuel NO emissions are due to changes in NOx concentrations from the moisture updates feeding back into PARANOX and therefore affecting ship NO emissions. In addition, PARANOX uses air volume and air volume values changed slightly in the new release due to a bug fix in box height.
  • The emission totals for hydrophilic tracer from hydrophobic tracer changed slightly for black carbon (by -0.004145 Tg C) and organic carbon (by -0.012820 Tg C).
Additional or summary comments:
  • The air quantity updates most strongly impact long-lasting tracers such as carbon dioxide for which transport processes dominate. For this reason, the Carbon Working Group has independently evaluated the proposed changes and are incorporating them into the Adjoint model. We therefore recommend that GEOS-Chem users run v11-01 rather than v10-01 for methane and carbon dioxide simulations.
Approval
Requires further investigation: No
Approved by: GCST
Date of approval: July 7, 2015

--Lizzie Lundgren (talk) 17:05, 2 July 2015 (UTC)