GEOS-Chem v11-01 benchmark history

From Geos-chem
Revision as of 21:39, 2 July 2015 by Lizzie Lundgren (Talk | contribs) (1-month benchmarks)

Jump to: navigation, search

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):
  • RRTMG fix: Sebastian Eastham (MIT), David Ridley (MIT)
  • All other features: Lizzie Lundgren (GEOS-Chem Support Team)
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:
At 500 hPa, list all species that changed by 10% or more: NO, ISOP, HNO3, 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:
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, HAC, GLYC, MMN, RIP, IEPOX, OCS, BrCl, CCl4, CH3CCl3, CFC11, H1211, H1301, H24O2, Cl, ClO, ClNO2, ClOO, OClO, Cl2, Cl2O2, MTPA, LIMO, MTPO, TSOA2, ISOA2, TOLU,
Comments on ZONAL MEAN differences:
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)