Difference between revisions of "Mean OH concentration"
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|- bgcolor="#CCCCCC" | |- bgcolor="#CCCCCC" | ||
!width="125px"|Benchmark | !width="125px"|Benchmark | ||
− | !width=" | + | !width="100px"|Met Fields & Year |
!width="125px"|Mean OH<br>[10<sup>5</sup> molec cm<sup>-3</sup>] | !width="125px"|Mean OH<br>[10<sup>5</sup> molec cm<sup>-3</sup>] | ||
!width="125px"|Change from<br>prev. version<br>[10<sup>5</sup> molec cm<sup>-3</sup>] | !width="125px"|Change from<br>prev. version<br>[10<sup>5</sup> molec cm<sup>-3</sup>] | ||
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!width="175px"|References | !width="175px"|References | ||
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| [[GEOS-Chem_v9-02_benchmark_history#v9-02r-geosfp-Run1|v9-02r-geosfp-Run1]] | | [[GEOS-Chem_v9-02_benchmark_history#v9-02r-geosfp-Run1|v9-02r-geosfp-Run1]] | ||
| GEOS-FP 2013 | | GEOS-FP 2013 | ||
| <tt>12.689</tt> | | <tt>12.689</tt> | ||
| <tt>0.300 (2.421%)</tt> | | <tt>0.300 (2.421%)</tt> | ||
− | | | + | |*[[GEOS-FP|Global simulations with GEOS-FP data product from GMAO]] |
− | *[[GEOS-FP|Global simulations with GEOS-FP data product from GMAO]] | + | |
*Anthropogenic emissions [[Scale_factors_for_anthropogenic_emissions|scaled to 2010]] (latest year available) | *Anthropogenic emissions [[Scale_factors_for_anthropogenic_emissions|scaled to 2010]] (latest year available) | ||
*2011 [[Biomass_burning_emissions#GFED3|GFED3 emissions]] (latest year available) | *2011 [[Biomass_burning_emissions#GFED3|GFED3 emissions]] (latest year available) | ||
*[[Olson_land_map#Olson_2001_land_map|Olson 2001 land map]] | *[[Olson_land_map#Olson_2001_land_map|Olson 2001 land map]] | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-02|v9-02 page]] | *[[GEOS-Chem v9-02|v9-02 page]] | ||
*[[GEOS-FP]] page | *[[GEOS-FP]] page | ||
*[[Olson land map]] page | *[[Olson land map]] page | ||
− | |||
− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-02_benchmark_history#v9-02r-geosfp-Run0|v9-02r-geosfp-Run0]] | | [[GEOS-Chem_v9-02_benchmark_history#v9-02r-geosfp-Run0|v9-02r-geosfp-Run0]] | ||
| GEOS-FP 2013 | | GEOS-FP 2013 | ||
| <tt>12.389</tt> | | <tt>12.389</tt> | ||
| <tt>-0.537 (-4.154%)</tt> | | <tt>-0.537 (-4.154%)</tt> | ||
− | | | + | | |
*[[GEOS-FP|Global simulations with GEOS-FP data product from GMAO]] | *[[GEOS-FP|Global simulations with GEOS-FP data product from GMAO]] | ||
* Anthropogenic and biomass burning emissions [[Scale_factors_for_anthropogenic_emissions|scaled to 2005]] (same as [[GEOS-Chem_v9-02_benchmark_history#v9-02r-geos5-Run0|v9-02r-geos5-Run0]]) | * Anthropogenic and biomass burning emissions [[Scale_factors_for_anthropogenic_emissions|scaled to 2005]] (same as [[GEOS-Chem_v9-02_benchmark_history#v9-02r-geos5-Run0|v9-02r-geos5-Run0]]) | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-02|v9-02 page]] | *[[GEOS-Chem v9-02|v9-02 page]] | ||
*[[GEOS-FP]] page | *[[GEOS-FP]] page | ||
− | |||
− | + | |-valign="top" | |
− | |- | + | |
| [[GEOS-Chem_v9-02_benchmark_history#v9-02r-geos5-Run0|v9-02r-geos5-Run0]] | | [[GEOS-Chem_v9-02_benchmark_history#v9-02r-geos5-Run0|v9-02r-geos5-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>12.926</tt> | | <tt>12.926</tt> | ||
| <tt>0.356<br>(2.832%)</tt> | | <tt>0.356<br>(2.832%)</tt> | ||
− | | | + | | |
*[[Aircraft_emissions#MIT_aviation_emissions_inventory|AEIC aircraft emissions inventory]] | *[[Aircraft_emissions#MIT_aviation_emissions_inventory|AEIC aircraft emissions inventory]] | ||
*[[Sulfate_aerosols#Cloud_water_pH_for_sulfate_formation|Cloud water pH for sulfate formation]] | *[[Sulfate_aerosols#Cloud_water_pH_for_sulfate_formation|Cloud water pH for sulfate formation]] | ||
*[[Aerosol_optical_properties#Better_representation_of_OC_growth_with_RH_and_correction_to_sulfate_optics|Update jv_spec.dat and jv_spec_aod.dat with better representation of OC growth with RH and correction to sulfate optics]] | *[[Aerosol_optical_properties#Better_representation_of_OC_growth_with_RH_and_correction_to_sulfate_optics|Update jv_spec.dat and jv_spec_aod.dat with better representation of OC growth with RH and correction to sulfate optics]] | ||
*[[GEOS-Chem_v9-02#Use_reprocessed_data_files_for_CAC_NH3_emissions|Bug fix in CAC NH3 emissions]] | *[[GEOS-Chem_v9-02#Use_reprocessed_data_files_for_CAC_NH3_emissions|Bug fix in CAC NH3 emissions]] | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-02|v9-02 page]] | *[[GEOS-Chem v9-02|v9-02 page]] | ||
*[[Aircraft_emissions|Aircraft emiss]] page | *[[Aircraft_emissions|Aircraft emiss]] page | ||
*[[Sulfate_aerosols|Sulfate aerosols]] page | *[[Sulfate_aerosols|Sulfate aerosols]] page | ||
*[[Aerosol_optical_properties|Aerosol optical properties]] page | *[[Aerosol_optical_properties|Aerosol optical properties]] page | ||
− | |||
− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-02_benchmark_history#v9-02l-Run0|v9-02l-Run0]] | | [[GEOS-Chem_v9-02_benchmark_history#v9-02l-Run0|v9-02l-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>12.570</tt> | | <tt>12.570</tt> | ||
| <tt>0.332<br>(2.713%)</tt> | | <tt>0.332<br>(2.713%)</tt> | ||
− | | | + | | |
*[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]] | *[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]] | ||
*[[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]] | *[[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]] | ||
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*[[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|Correct additional bugs in ship emissions w/ non-local PBL mixing]] | *[[Ship_emissions#Bugs_in_ship_emissions_and_non-local_PBL_mixing|Correct additional bugs in ship emissions w/ non-local PBL mixing]] | ||
*[[Ship emissions#Bug in ship CO emissions|Bug fix for ship CO emissions]]''' | *[[Ship emissions#Bug in ship CO emissions|Bug fix for ship CO emissions]]''' | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-02|v9-02 page]] | *[[GEOS-Chem v9-02|v9-02 page]] | ||
*[[Anthropogenic_emissions|Anthro emiss]] page | *[[Anthropogenic_emissions|Anthro emiss]] page | ||
*[[Ship_emissions|Ship emiss]] page | *[[Ship_emissions|Ship emiss]] page | ||
− | |||
− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-02_benchmark_history#v9-02j-Run0|v9-02j-Run0]] | | [[GEOS-Chem_v9-02_benchmark_history#v9-02j-Run0|v9-02j-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>12.238</tt> | | <tt>12.238</tt> | ||
| <tt>-0.234<br>(-1.876%)</tt> | | <tt>-0.234<br>(-1.876%)</tt> | ||
− | | | + | | |
*[[NOx-Ox-HC-aerosol#Removal_of_NOx_and_Ox_partitioning|Removal of NOx and Ox partitioning]] | *[[NOx-Ox-HC-aerosol#Removal_of_NOx_and_Ox_partitioning|Removal of NOx and Ox partitioning]] | ||
*[[ChemTelecon20111202|Inhibition of N2O5 uptake by nitrate aerosol]] | *[[ChemTelecon20111202|Inhibition of N2O5 uptake by nitrate aerosol]] | ||
*[[NOx-Ox-HC-aerosol#Improved_HO2_uptake|Improved HO2 uptake by aerosol]] | *[[NOx-Ox-HC-aerosol#Improved_HO2_uptake|Improved HO2 uptake by aerosol]] | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-02|v9-02 page]] | *[[GEOS-Chem v9-02|v9-02 page]] | ||
*[[NOx-Ox-HC-aerosol|Fullchem sim]] page | *[[NOx-Ox-HC-aerosol|Fullchem sim]] page | ||
− | |||
− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-02_benchmark_history#v9-02g-Run0|v9-02g-Run0]] | | [[GEOS-Chem_v9-02_benchmark_history#v9-02g-Run0|v9-02g-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>12.472</tt> | | <tt>12.472</tt> | ||
| <tt>0.969<br>(8.424%)</tt> | | <tt>0.969<br>(8.424%)</tt> | ||
− | | | + | | |
*[[New_isoprene_scheme|Standardize Paulot isoprene scheme]] | *[[New_isoprene_scheme|Standardize Paulot isoprene scheme]] | ||
*[[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]] | *[[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]] | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-02|v9-02 page]] | *[[GEOS-Chem v9-02|v9-02 page]] | ||
*[[New_isoprene_scheme|Isoprene scheme]] page | *[[New_isoprene_scheme|Isoprene scheme]] page | ||
− | |||
− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-02_benchmark_history#v9-02f-Run0|v9-02f-Run0]] | | [[GEOS-Chem_v9-02_benchmark_history#v9-02f-Run0|v9-02f-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>11.503</tt> | | <tt>11.503</tt> | ||
| <tt>0.079<br>(0.692%)</tt> | | <tt>0.079<br>(0.692%)</tt> | ||
− | | | + | | |
*[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]] | *[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]] | ||
*[[Methyl_peroxy_nitrate_chemistry|Methyl peroxy nitrate (MPN) chemistry]] | *[[Methyl_peroxy_nitrate_chemistry|Methyl peroxy nitrate (MPN) chemistry]] | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-02|v9-02 page]] | *[[GEOS-Chem v9-02|v9-02 page]] | ||
*[http://jpldataeval.jpl.nasa.gov/pdf/JPL%2010-6%20Final%2015June2011.pdf JPL 10-6 doc] | *[http://jpldataeval.jpl.nasa.gov/pdf/JPL%2010-6%20Final%2015June2011.pdf JPL 10-6 doc] | ||
*[[Methyl_peroxy_nitrate_chemistry|MPN chem]] page | *[[Methyl_peroxy_nitrate_chemistry|MPN chem]] page | ||
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− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-02_benchmark_history#v9-02b-Run0|v9-02b-Run0]] | | [[GEOS-Chem_v9-02_benchmark_history#v9-02b-Run0|v9-02b-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>11.424</tt> | | <tt>11.424</tt> | ||
| <tt>0.068<br>(0.599%)</tt> | | <tt>0.068<br>(0.599%)</tt> | ||
− | | | + | | |
*[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]] | *[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]] | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-02|v9-02 page]] | *[[GEOS-Chem v9-02|v9-02 page]] | ||
*[[Soil_NOx_emissions|Soil NOx]] page | *[[Soil_NOx_emissions|Soil NOx]] page | ||
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− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-01-03_benchmark_history#Run1|v9-01-03r-Run1]] | | [[GEOS-Chem_v9-01-03_benchmark_history#Run1|v9-01-03r-Run1]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>11.356</tt> | | <tt>11.356</tt> | ||
| <tt>-0.502<br>(-4.233%)</tt> | | <tt>-0.502<br>(-4.233%)</tt> | ||
− | | | + | | |
*[[Bromine chemistry mechanism]] | *[[Bromine chemistry mechanism]] | ||
− | |||
| | | | ||
− | |||
*[[GEOS-Chem v9-01-03|v9-01-03 page]] | *[[GEOS-Chem v9-01-03|v9-01-03 page]] | ||
*[[Bromine chemistry mechanism|Bromine chem]] page | *[[Bromine chemistry mechanism|Bromine chem]] page | ||
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− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-01-03_benchmark_history#Run0|v9-01-03r-Run0]] | | [[GEOS-Chem_v9-01-03_benchmark_history#Run0|v9-01-03r-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>11.858</tt> | | <tt>11.858</tt> | ||
| <tt>-0.077<br>(-0.645%)</tt> | | <tt>-0.077<br>(-0.645%)</tt> | ||
− | | | + | | |
*[[Stratospheric_chemistry#New_implementation_of_linearized_stratospheric_chemistry|New implementation of linearized stratospheric chemistry]] | *[[Stratospheric_chemistry#New_implementation_of_linearized_stratospheric_chemistry|New implementation of linearized stratospheric chemistry]] | ||
*[[Implementation_of_RETRO_Anthropogenic_Emissions#RETRO_anthropogenic_ethane_emissions_are_too_low|Bug fix for too-low RETRO C2H6 emissions]] | *[[Implementation_of_RETRO_Anthropogenic_Emissions#RETRO_anthropogenic_ethane_emissions_are_too_low|Bug fix for too-low RETRO C2H6 emissions]] | ||
*[[Ship_emissions#PARANOX_ship_plume_model|PARANOX plume model for ship emissions]] | *[[Ship_emissions#PARANOX_ship_plume_model|PARANOX plume model for ship emissions]] | ||
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| | | | ||
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*[[GEOS-Chem v9-01-03|v9-01-03 page]] | *[[GEOS-Chem v9-01-03|v9-01-03 page]] | ||
*[[Stratospheric chemistry|Strat chem]] page | *[[Stratospheric chemistry|Strat chem]] page | ||
*[[Ship emissions]] page | *[[Ship emissions]] page | ||
*[[Implementation_of_RETRO_Anthropogenic_Emissions|RETRO]] page | *[[Implementation_of_RETRO_Anthropogenic_Emissions|RETRO]] page | ||
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− | |- | + | |-valign="top" |
| [[GEOS-Chem_v9-01-03_benchmark_history#Run0_3|v9-01-03e-Run0]] | | [[GEOS-Chem_v9-01-03_benchmark_history#Run0_3|v9-01-03e-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>11.935</tt> | | <tt>11.935</tt> | ||
| <tt>-0.397<br>(-3.219%)</tt> | | <tt>-0.397<br>(-3.219%)</tt> | ||
− | | | + | | |
*[[Wet_deposition#Add_scavenging_by_snow|Improved snow scavenging and washout parameterization]] | *[[Wet_deposition#Add_scavenging_by_snow|Improved snow scavenging and washout parameterization]] | ||
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| | | | ||
− | |||
*[[GEOS-Chem v9-01-03|v9-01-03 page]] | *[[GEOS-Chem v9-01-03|v9-01-03 page]] | ||
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− | |- | + | |-valign="top" |
| [[GEOS-Chem v9-01-02 benchmark history#Run1|v9-01-02-Run1]] | | [[GEOS-Chem v9-01-02 benchmark history#Run1|v9-01-02-Run1]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>12.332</tt> | | <tt>12.332</tt> | ||
| <tt>+0.099<br>(+0.809%)</tt> | | <tt>+0.099<br>(+0.809%)</tt> | ||
− | | | + | | |
*[[Implementation of RETRO Anthropogenic Emissions|RETRO anthropogenic VOC emissions]] | *[[Implementation of RETRO Anthropogenic Emissions|RETRO anthropogenic VOC emissions]] | ||
*[[Biomass burning emissions#GFED3|GFED3 monthly biomass burning emissions]] | *[[Biomass burning emissions#GFED3|GFED3 monthly biomass burning emissions]] | ||
− | + | | | |
− | | | + | |
*[[GEOS-Chem v9-01-02|v9-01-02 page]] | *[[GEOS-Chem v9-01-02|v9-01-02 page]] | ||
− | + | ||
− | |- | + | |-valign="top" |
| [[GEOS-Chem v9-01-02 benchmark history#Run0|v9-01-02-Run0]] | | [[GEOS-Chem v9-01-02 benchmark history#Run0|v9-01-02-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>12.233</tt> | | <tt>12.233</tt> | ||
| <tt>-0.009<br>(-0.074%)</tt> | | <tt>-0.009<br>(-0.074%)</tt> | ||
− | | | + | | |
*[[APM aerosol microphysics]] | *[[APM aerosol microphysics]] | ||
*[[GEOS-Chem v9-01-02#Previous issues now resolved in v9-01-02|Various fixes to correct several identified issues]] | *[[GEOS-Chem v9-01-02#Previous issues now resolved in v9-01-02|Various fixes to correct several identified issues]] | ||
− | + | | | |
− | | | + | |
*[[GEOS-Chem v9-01-02|v9-01-02 page]] | *[[GEOS-Chem v9-01-02|v9-01-02 page]] | ||
− | |||
− | |- | + | |-valign="top" |
| [[GEOS-Chem v9-01-01#Run1|v9-01-01-Run1]] | | [[GEOS-Chem v9-01-01#Run1|v9-01-01-Run1]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>12.242</tt> | | <tt>12.242</tt> | ||
| <tt>+0.377<br>(+3.177%)</tt> | | <tt>+0.377<br>(+3.177%)</tt> | ||
− | | | + | | |
*[http://seas.harvard.edu/~ltmurray/LNOx.v9-01-01.Release.Notes.pdf Updated lighting parameterization] | *[http://seas.harvard.edu/~ltmurray/LNOx.v9-01-01.Release.Notes.pdf Updated lighting parameterization] | ||
− | + | | | |
− | | | + | |
*[[GEOS-Chem v9-01-01|v9-01-01 page]] | *[[GEOS-Chem v9-01-01|v9-01-01 page]] | ||
− | + | ||
− | |- | + | |-valign="top" |
| [[GEOS-Chem v9-01-01#Run0|v9-01-01-Run0]] | | [[GEOS-Chem v9-01-01#Run0|v9-01-01-Run0]] | ||
| GEOS-5.1.0 2005 | | GEOS-5.1.0 2005 | ||
| <tt>11.865</tt> | | <tt>11.865</tt> | ||
| <tt>+0.798<br>(+7.2%)</tt> | | <tt>+0.798<br>(+7.2%)</tt> | ||
− | | | + | | |
*[[Ship_emissions#ICOADS|ICOADS ship emissions]] | *[[Ship_emissions#ICOADS|ICOADS ship emissions]] | ||
*[[GEOS-Chem_v9-01-01#Important_bug_fixes_for_ship_emissions|Bug fixes for ship emissions]] | *[[GEOS-Chem_v9-01-01#Important_bug_fixes_for_ship_emissions|Bug fixes for ship emissions]] | ||
Line 504: | Line 465: | ||
*[http://acmg.seas.harvard.edu/geos/wiki_docs/deposition/v9-01-01_wetdep.pdf Updates for wet scavenging algorithm] | *[http://acmg.seas.harvard.edu/geos/wiki_docs/deposition/v9-01-01_wetdep.pdf Updates for wet scavenging algorithm] | ||
*[[GEOS-Chem_v9-01-01#Post-release_patches|Several post-release patches to correct various issues]] | *[[GEOS-Chem_v9-01-01#Post-release_patches|Several post-release patches to correct various issues]] | ||
− | + | | | |
− | | | + | |
*[[GEOS-Chem v9-01-01|v9-01-01 page]] | *[[GEOS-Chem v9-01-01|v9-01-01 page]] | ||
*[[Wet deposition]] page | *[[Wet deposition]] page | ||
*[[Ship emissions]] page | *[[Ship emissions]] page | ||
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|} | |} |
Revision as of 18:05, 29 March 2018
On this page we track the evolution of the mean OH concentration in GEOS-Chem. This value is an indicator of how "hot" the chemistry is. Please also see the related topic about the methyl chloroform lifetime in GEOS-Chem.
Computation of the mean OH diagnostic
The mean OH diagnostic in GEOS-Chem is computed in diag_pl_mod.f.
Routine DO_DIAG_OH sums up the tropospheric air mass and mass-weighted OH mass after each call to the chemistry solver. The summing happens in these lines of code:
! Sum air mass term into AIR_MASS array XAIRMASS = AIRDENS(JLOOP) * VOLUME(JLOOP) AIR_MASS(I,J,L) = AIR_MASS(I,J,L) + XAIRMASS ! Sum OH mass term into OH_MASS array XOHMASS = CSPEC(JLOOP,IDOH) * XAIRMASS OH_MASS(I,J,L) = OH_MASS(I,J,L) + XOHMASS
where the arrays contain the following quantities:
JLOOP = 1-D array index for SMVGEAR I,J,L = 3-D array indices AIRDENS(JLOOP) = air density [molec/cm3] VOLUME(JLOOP) = grid box volume [cm3] AIR_MASS(I,J,L) = air mass [molec air] CSPEC(JLOOP,IDOH) = OH concentration [molec OH/cm3] OH_MASS(I,J,L) = mass-weighted OH = OH mass * air mass [molec OH/cm3 * molec air]
After the GEOS-Chem simulation finishes, the mean OH value is printed out in subroutines PRINT_MEAN_OH:
! Total Mass-weighted OH [molec OH/cm3] * [molec air] SUM_OHMASS = SUM( OH_MASS ) ! Atmospheric air mass [molec air] SUM_MASS = SUM( AIR_MASS ) ! Divide OH [molec OH/cm3 * molec air] by [molec air] and report as [1e5 molec/cm3] OHCONC = ( SUM_OHMASS / SUM_MASS ) / 1d5 ! Write value to log file WRITE( 6, '(/,a)' ) REPEAT( '=', 79 ) WRITE( 6, * ) 'ND23: Mass-Weighted OH Concentration' WRITE( 6, * ) 'Mean OH = ', OHCONC, ' [1e5 molec/cm3]' WRITE( 6, '( a)' ) REPEAT( '=', 79 )
Typical values vary between 105 - 115 molec/cm3.
--Bob Y. 15:12, 11 February 2010 (EST)
Evolution of mean OH in GEOS-Chem
Plot of mean OH evolution
Here is a plot of the mean OH concentration from several recent GEOS–Chem 1-year benchmark simulations. The mean OH is an indicator how the chemistry mechanism is performing. Typical values are 10–12 x 105 molecules cm-1.
--Bob Y. 12:41, 17 January 2014 (EST)
Mean OH in GEOS-Chem v11
The following table chronicles the evolution of the mean OH value from several different GEOS-Chem simulations. All benchmark simulations were conducted at 4 x 5 resolution unless noted otherwise.
Mean OH in GEOS-Chem v10
The following table chronicles the evolution of the mean OH value from several different GEOS-Chem simulations. All benchmark simulations were conducted at 4 x 5 resolution unless noted otherwise.
Benchmark | Met Fields & Year | Mean OH [105 molec cm-3] |
Change from prev. version [105 molec cm-3] |
Important updates in this benchmark simulation | References |
---|---|---|---|---|---|
v10-01i-Run0 | GEOS-FP 2013 | 11.125 | 0.033 (0.298%) |
| |
v10-01h-Run0 | GEOS-FP 2013 | 11.092 | -0.751 (-6.341%) |
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v10-01e-Run1 | GEOS-FP 2013 | 11.843 | -0.042 (-0.353%) |
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v10-01c-Run1 | GEOS-FP 2013 | 11.885 | -0.665 (-5.299%) |
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v10-01c-Run0 | GEOS-FP 2013 | 12.550 | -0.139 (-1.095%) |
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Mean OH in GEOS-Chem v9
The following table chronicles the evolution of the mean OH value from several different GEOS-Chem simulations. All benchmark simulations were conducted at 4 x 5 resolution unless noted otherwise.
Mean OH in GEOS-Chem v8
Benchmark | Met Fields & Year | Mean OH [105 molec cm-3] |
Change from previous version [105 molec cm-3] |
Important updates in this benchmark simulation | References | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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GEOS-Chem version 8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
v8-02-04-Run2 | GEOS-5.1.0 2005 | 11.067 | +0.019 (+0.17%) |
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v8-02-04-Run1 | GEOS-5.1.0 2005 | 11.048 | +0.598 (+5.72%) |
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v8-02-04-Run0 | GEOS-5.1.0 2005 | 10.450 | -1.362 (-11.53%) |
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v8-02-01-Run0 | GEOS-5.1.0 2005 | 11.812 | +0.713 (+6.42%) |
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v8-01-04-Run2 | GEOS-5.1.0 2005 | 11.099 | +0.805 (+7.82%) |
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v8-01-04-Run1 | GEOS-5.0.1 2005 | 10.294 | -0.395 (-3.69%) |
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v8-01-04-Run0 | GEOS-5.0.1 2005 | 10.689 | -1.351 (-11.22%) |
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v8-01-01-Run1 | GEOS-5.0.1 2005 | 12.040 | +0.034 (+0.28%) |
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v8-01-01-Run0 | GEOS-5.0.1 2005 | 12.006 | -0.141 (-1.16%) |
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Mean OH in GEOS-Chem v7
--Bob Y. 12:13, 3 October 2013 (EDT) Additional documentationGEOS-Chem version 8
GEOS-Chem version 7
--Bob Y. 09:32, 23 February 2010 (EST) |