GEOS-Chem v9-01-01 benchmark history

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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 v9-01-01.

NOTE: to save disk space, we have created TARBALL (*.tar.gz) files for the 1-month benchmark plots. You can download each TARBALL file and extract (with tar xvzf) it to view the plots.

1-month benchmarks

v9-01-01

Description
New features added into GEOS-Chem: See this listing of new features in v9-01-01
Developer name(s) and institution(s): See this listing of new features in v9-01-01
Version, resolution, met fields used: v9-01-01, GEOS-5 (47L), 4x5
1-month benchmark finished on: Tue Jun 7 17:04:42 EDT 2011
Compared to previous benchmark: v8-03-02
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): Lightning, Diagnostics,
Plots may be viewed at: ftp://ftp.as.harvard.edu/pub/geos-chem/1mo_benchmarks/v9-01-01/v9-01-01.tar.gz
Metrics
Global mean OH (from log file): 13.1878102519336 x 105 molec/cm3
Methyl chloroform lifetime: 4.7490 years
Did either of these change by more than 5%? No (but v9-01-01 is 4.8% higher)
At the SURFACE, list all species that changed by 10% or more: NOx Ox PAN CO ALK4 ISOP HNO3 H2O2 ALD2 MEK RCHO MVK MACR PMN PPN R4N2 PRPE C3H8 CH2O C2H6 N2O5 HNO4 MP DMS SO2 SO4 SO4S MSA NH3 NH4 NIT NITS BCPI OCPI BCPO OCPO DST1-4 SALA SALC
Comments on SURFACE differences:
At 500 hPa, list all species that changed by 10% or more: NOx PAN CO ALK4 ISOP HNO3 H2O2 MEK ALD2 RCHO MVK MACR PMN PPN R4N2 PRPE CH2O C2H6 N2O5 HNO4 MP DMS SO2 SO4 SO4S NH3 NH4 NIT NITS BCPI OCPI BCPO OCPO DST1-4 SALA SALC
Comments on 500 hPa differences:
In the EMISSION RATIO maps, list all species that changed by 10% or more: SO2 (volcanic), DST1-4
Comments on EMISSION RATIO differences:
  • Volcanic SO2 was updated
  • We eliminated the double-counting of biofuel emissions over asia
  • We fixed an error in the dust emissions module
  • We updated the lightning NOx emissions
Additional or summary comments:
Approval
Requires further investigation: NO
Approved: YES
Date of approval: 07 Jun 2011

--Bob Y. 13:20, 24 June 2011 (EDT)

1-year benchmarks

For each benchmark run, plots comparing modeled aerosols to observations are now available. The plotting program and observations were provided by Colette Heald.

Run0

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

Color Quantity Plotted Met Type Anthro emissions Biofuel emissions Lightning Emissions Linoz Annual Mean OH
[105 molec/cm3]
Red v8-02-04-Run1 GEOS-5, 4x5 Same as v8-02-04-Run0 Same as v8-02-04-Run0 Same as v8-02-04-Run0 OFF 11.048
Green v8-02-04-Run2 GEOS-5, 4x5 " " " " " " ON 11.067
Blue v9-01-01-Run0
(w/ post-release patches)
GEOS-5, 4x5 + ICOADS ship emissions
+ Bug fixes for ship emissions
+ Bug fix for biofuels in EPA/NEI05 " " " " 11.865
Black Observations            

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

ftp ftp.as.harvard.edu
cd pub/geos-chem/1yr_benchmarks/v9-01-01/geos5/2005/Run0/output/ps
mget *
cd pub/geos-chem/1yr_benchmarks/v9-01-01/geos5/2005/Run0/output/pdf
mget *

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

ftp://ftp.as.harvard.edu/pub/geos-chem/1yr_benchmarks/v9-01-01/geos5/2005/Run0/output/pdf/

--Bob Y. 12:04, 24 June 2011 (EDT)

Run1

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

Color Quantity Plotted Met type Anthro emissions Biofuel emissions Lightning Emissions Linoz Annual Mean OH
[105 molec/cm3]
Red v8-02-04-Run2 GEOS-5, 4x5 Same as v8-02-04-Run0 Same as v8-02-04-Run0 Same as v8-02-04-Run0 ON 11.067
Green v9-01-01-Run0
(w/ post-release patches)
GEOS-5, 4x5 + ICOADS ship emissions
+ Bug fixes for ship emissions
+ Bug fix for biofuels in EPA/NEI05 " " " " 11.865
Blue v9-01-01-Run1
(w/ post-release patches)
GEOS-5, 4x5 " " " " + Updated LNOx algorithm from Lee Murray " " 12.242
Black Observations            

The output plots for Run1 (both PostScript and PDF format) may be downloaded from:

ftp ftp.as.harvard.edu
cd pub/geos-chem/1yr_benchmarks/v9-01-01/geos5/2005/Run1/output/ps
mget *
cd pub/geos-chem/1yr_benchmarks/v9-01-01/geos5/2005/Run1/output/pdf
mget *

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

ftp://ftp.as.harvard.edu/pub/geos-chem/1yr_benchmarks/v9-01-01/geos5/2005/Run1/output/pdf/

--Bob Y. 12:04, 24 June 2011 (EDT)