Difference between revisions of "GEOS-Chem v11-01 benchmark history"

From Geos-chem
Jump to: navigation, search
(v11-01a)
(v11-01a)
Line 20: Line 20:
 
*[[Air_Quantity_Updates_for_v11-01a#Convection|Use tracer units [kg/kg total air] in convection and advection and [v/v dry air] where previously [v/v]]]
 
*[[Air_Quantity_Updates_for_v11-01a#Convection|Use tracer units [kg/kg total air] in convection and advection and [v/v dry air] where previously [v/v]]]
 
*[[Air Quantity Updates for v11-01a#Water Vapor Saturation Pressure|Update water vapor saturation formula (Nordquist, 1973)]]
 
*[[Air Quantity Updates for v11-01a#Water Vapor Saturation Pressure|Update water vapor saturation formula (Nordquist, 1973)]]
*[[Cloud_convection#Fix bug in DO_MERRA_CONVECTION affecting mass conservation|Fix bug in DO_MERRA_CONVECTION affecting mass conservation]]
+
*[[Cloud_convection#Fixed_bug_in_DO_MERRA_CONVECTION_affecting_mass_conservation|Fix bug in DO_MERRA_CONVECTION affecting mass conservation]]
*[[#Prevent negative tracer concentrations after advection|Reset negative tracer concentrations within advection to small positive values at poles]]
+
*[[GEOS-Chem v11-01#Prevent negative tracer concentrations after advection|Reset negative tracer concentrations within advection to small positive values at poles]]
  
 
Features not affecting the full-chemistry simulation in this benchmark:
 
Features not affecting the full-chemistry simulation in this benchmark:
*[[#Now have a test for mass conservation|Now have the option to print out global tracer mass time series to inspect mass conservation]]
+
*[[GEOS-Chem_v11-01#Added_a_test_for_mass_conservation|Now have the option to print out global tracer mass time series to inspect mass conservation]]
 
*[[Coupling_GEOS-Chem_with_RRTMG#Fix_bug_that_prevents_storage_of_O3_and_CH4_RFs|Fix bug in RRTMG that prevents storage of O2 and CH4 RFs]]
 
*[[Coupling_GEOS-Chem_with_RRTMG#Fix_bug_that_prevents_storage_of_O3_and_CH4_RFs|Fix bug in RRTMG that prevents storage of O2 and CH4 RFs]]
 
|-  
 
|-  

Revision as of 18:38, 6 July 2015

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

1-month benchmarks

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/pub/exchange/1mo_benchmark/v11-01/v11-01a-Run1/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/pub/exchange/1mo_benchmark/v11-01/v11-01a-Run1/
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.
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 differemces 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.
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.
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 NO emissions are due to changes in the NOx atmospheric concentration associated with the air quantity moisture fixes since NO emissions are dependent on atmospheric NOx.
  • 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: TBD
Approved by: TBD
Date of approval: TBD

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