Benchmark/GEOS-Chem 12.5.0

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This page includes information about all benchmark simulations for GEOS-Chem 12.5.0.

GEOS-Chem Classic 1-month benchmark

Benchmark plots

Enable PDF bookmarks in the files linked below to navigate between species. See the Species in GEOS-Chem wiki page for species definitions and details.

Species Category1 Plots Additional Information
Level Map Zonal Mean Emissions
Principal

O3, CO, OH, NOx

sfc 500hPa full column stratosphere sfc
Aerosols

NH4, NIT, SO4, DST1, DST2, DST3, DST4, BC, OC, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, SOA_Simple, SOA_Complex

sfc 500hPa full column stratosphere sfc AOD
Bromine

Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH4Br, CH2Br2, CH2Br2, CH3Br3, HOBr, HBr

sfc 500hPa full column stratosphere sfc
Chlorine

Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH4CCl3, HOCl, HCl, Halons, HCFCs, OClO

sfc 500hPa full column stratosphere --
Iodine

Iy, IxOy, I, I2, IBr, ICl, IO, INO2, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO

sfc 500hPa full column stratosphere sfc
Nitrogen

NOy, NOx, HNO2, HNO3, HNO4, IMPN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4

sfc 500hPa full column stratosphere sfc
Primary Organics

ALK4, BENZ, CH4, C2H6, C2H4, C3H8, PRPE, TOLU, XYLE, ISOP, MTPA, MTPO, LIMO, GLYX, HCOOH, MAP, MBO, MOH, RCHO

sfc 500hPa full column stratosphere sfc
Secondary Organics

ACET, MEK, MVK, ALD2, CH2O, HPALD, MP, ISOPN, IEPOX, ACTA, EOH, MOH

sfc 500hPa full column stratosphere sfc
ROy

H2O2, H, H2, H2O, HO2, O1D, OH, RO2

sfc 500hPa full column stratosphere --
Sulfur

SOx, DMS, OCS, SO2, SO4

sfc 500hPa full column stratosphere sfc
Emissions by HEMCO category

Total, Aircraft, Anthro, Bioburn, Biofuel, Biogenic,
Lightning, Monoterp, Natural, Ocean, Seabirds, SenescingPlants,
Ship, Soil, VolcDegas, VolcErupt,

Emissions tables
J-values sfc 500hPa full column stratosphere -- --
Plots still created by GAMAP
Budget -- -- -- -- -- Ox and CO budgets

NOTES:

  1. Species category and lumped species definitions are simple to adjust. Updating them requires only editing the json files.
  2. All plots created with GCPy have PDF bookmarks. If you do not see them in your browser try using a different browser (not Safari) or installing an Adobe Acrobat plug-in.

Benchmark assessment form

Description
New features added into GEOS-Chem
Feature Submitted by
Updates that will affect full-chemistry simulations
Bug fix: make sure stratospheric BrY concentrations are read properly each month Lyatt Jaeglé (U. Washington)
Retire obsolete emission inventories Eloise Marais (Leicester)
Emissions and Deposition Working Group
Fixes for GFED4 emissions, including:
  • Change the HEMCO cycling flag so that the model crashes if it doesn't find the right GFED year
  • Remove the 27% scaling of POG to POA and emit 1:1 instead
 Sidhant Pai (MIT)
Corrections for CFCs in the chemistry mechanism Xuan Wang (Harvard)
Fix typo in CLD_PARAMS routine in gckpp_HetRates.F90 Stephen Steenrod (NASA GMAO)
Updates that will NOT affect full-chemistry simulations
Enable GEOS-Chem "Classic" netCDF (History) diagnostics to be subsetted vertically and horizontally Bob Yantosca (GCST)
Enable accurate cloud pH diagnostic calculation via post-processing Jonathan Moch (Harvard)
Updates that will only affect GCHP
Update GCHP to use MAPL v1.0.0 and ESMF v8.0.0 beta snapshot 28 Lizzie Lundgren (GCST)
Version, resolution, met fields used: GEOS-FP (72L), 4x5, July 2016
1-month benchmark finished on: Fri May 24 06:51:03 EDT 2019
Performance statistics:
  • Compiled with ifort 17.0.4
  • Ran on 24 CPUs of holyjacob01.rc.fas.harvard.edu (Intel(R) Xeon(R) CPU E5-2680 v3 "Haswell" @ 2.50 GHz)
  • Wall time: TBD
  • CPU time / wall time: TBD
  • % of ideal performance: TBD
  • Memory: TBD
Compared to previous benchmark: 12.4.0
This update will impact:
(select all that apply with boldface) 		Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Emissions, Photolysis, Chemistry, Other (please specify): Diagnostics
Unit test results may be viewed at: TBD
Metrics
Global mean OH from log file (% change): 12.6185673606414 x 105 molec/cm3 (TBD)
Methyl chloroform lifetime (% change): TBD (TBD)
Methane lifetime (% change): TBD years (TBD
List all SURFACE SPECIES, SURFACE J-VALUES
AND COLUMN AOD SPECIES for which
ABS(MAX(frac. diff))) > 0.1:
Comments on SURFACE differences: TBD
List all 500 hPa SPECIES and
500 hPA J-VALUES for which
ABS(MAX(frac. diff.) > 0.1:


Comments on 500 hPa differences: TBD
List all ZONAL MEAN SPECIES
and ZONAL MEAN J-VALUES for which
ABS(MAX(frac. diff))) > 0.1:


Comments on ZONAL MEAN differences: TBD
List all EMISSIONS for which
ABS(MAX(frac. diff))) > 0.1:


Comments on EMISSIONS differences: TBD
Additional or summary comments: TBD
Approval
Requires further investigation: TBD
Approved by:
Date of approval:

GCHP 1-month benchmark

The following sections contain validation plots for GCHP 12.5.0.

Comparison of GCHP versions

This table contains plots comparing GCHP 12.3.2 (Ref) and GCHP 12.5.0 (Dev) for a 1-month simulation.

Category1 Plots2 Additional Information
Level Map Zonal Mean Emissions
Primary sfc 500hPa full column stratosphere full column
Aerosols sfc 500hPa full column stratosphere full column Column AOD
Bromine sfc 500hPa full column stratosphere full column
Chlorine sfc 500hPa full column stratosphere --
Iodine sfc 500hPa full column stratosphere full column
Nitrogen sfc 500hPa full column stratosphere full column
Primary Organics sfc 500hPa full column stratosphere full column
Secondary Organics sfc 500hPa full column stratosphere full column
Sulfur sfc 500hPa full column stratosphere full column
Emissions by HEMCO category

Aircraft, Anthro, Bioburn, Biofuel, Biogenic,
Lightning, Monoterp, Natural, Ocean, Seabirds, SenescingPlants,
Ship, Soil, Total, VolcDegas, VolcErupt,

Emission totals

1Benchmark category definitions: benchmark_categories.json
2Lumped species definitions: lumped_species.json

Comparison of GCHP and GEOS-Chem Classic

This table contains plots comparing GEOS-Chem Classic 12.5.0 (Ref) against GCHP 12.5.0 (Dev) for a 1-month simulation.

Category1 Plots2 Additional Information
Level Map Zonal Mean Emissions
Primary sfc 500hPa full column stratosphere full column
Aerosols sfc 500hPa full column stratosphere full column Column AOD
Bromine sfc 500hPa full column stratosphere full column
Chlorine sfc 500hPa full column stratosphere --
Iodine sfc 500hPa full column stratosphere full column
Nitrogen sfc 500hPa full column stratosphere full column
Primary Organics sfc 500hPa full column stratosphere full column
Secondary Organics sfc 500hPa full column stratosphere full column
Sulfur sfc 500hPa full column stratosphere full column
Emissions by HEMCO category

Aircraft, Anthro, Bioburn, Biofuel, Biogenic,
Lightning, Monoterp, Natural, Ocean, Seabirds, SenescingPlants,
Ship, Soil, Total, VolcDegas, VolcErupt,

Emission totals

1Benchmark category definitions: benchmark_categories.json
2Lumped species definitions: lumped_species.json


GCHP and GEOS-Chem Classic difference of differences

This table contains plots comparing the difference [GCHP 12.5.0 - GCHP 12.3.2] against the difference [GC Classic 12.5.0 - GC Classic 12.3.0], taken from 1-month benchmark simulations.

Category1 Plots2
Level Map Zonal Mean
Primary sfc 500hPa full column stratosphere
Aerosols sfc 500hPa full column stratosphere
Bromine sfc 500hPa full column stratosphere
Chlorine sfc 500hPa full column stratosphere
Iodine sfc 500hPa full column stratosphere
Nitrogen sfc 500hPa full column stratosphere
Primary Organics sfc 500hPa full column stratosphere
Secondary Organics sfc 500hPa full column stratosphere
Sulfur sfc 500hPa full column stratosphere

1Benchmark category definitions: benchmark_categories.json
2Lumped species definitions: lumped_species.json

NOTES:

  1. At present, we have only created the diff-of-diffs plots for species concentration. This can be extended to other categories in the future.
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