Developing UKESM
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Results from VN10.6 GA7.1 + CheST (StratTrop chemistry) +GLOMAP (proto UKESM/ next Release)
Model Run | Chemistry | Aerosol-microphys | Aerosol-optical | Owner | UM version | Monsoon job ID | Met Office ID | Link to chemistry evaluation | Link to aerosol evaluation | Link to Validation Note | Comments |
AMIP | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/ Gas-phase RF ON | Mohit Dalvi | 10.6.1 GA7.1 N96 AMIP |
u-aj841 | u-ai181 / mi-aj670 | ukca_chem_eval_aj670.pdf ukca_chem_eval_ac691_aj670.pdf | UKESM_Evaluation_Report_RPope_24032017.pdf aj670_tau_ch4_fixed.pdf |
aero_eval_aj670.pdf | None at present | Run for 20 years - plots based on 11-20th year means; Lightning emissions halved. |
TS2000 | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/ Gas-phase RF ON | Mohit Dalvi | 10.6.1 GA7.1 N96 |
u-an038 | u-am124 | ukca_chem_eval_aj670_am124.pdf ukca_haloe_o3_scaling |
-- | None at present | 11-20th year means; GHG and Trace Gas mmrs as per WMOA1+RCP6 |
TS2000-Nudged | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/ Gas-phase RF ON | Mohit Dalvi | 10.6.1 GA7.1 N96 |
u-an113 | u-am400 | ukca_chem_eval_am124_am400.pdf 11-20 vs 21-30 yr ukca_chem_eval_am124_20yr_am124_30yr.pdf am400_tau_ch4_fixed.pdf |
-- | None at present | Plots based on 11-20th year means; Lightning emissions halved. |
TS2000-RCP6 | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/ Gas-phase RF ON | Mohit Dalvi | 10.6.1 GA7.1 N96 |
NA | u-an114 | ukca_chem_eval_am124_an114.pdf an114_tau_ch4_fixed.pdf |
-- | None at present | Radiation GHG as per GC3.1 UKCA Trace Gas mmrs as per WMOA1+RCP6 |
TS2000-Rad+UKCA=RCP6 | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/ Gas-phase RF ON | Alistair Sellar | 10.6.1 GA7.1 N96 |
NA | u-ao124 | ukca_chem_eval_am124_ao124.pdf | -- | None at present | Only difference from u-am124 is UKCA Trace Gas read from WMO2011+RCP6 file |
TS2000-RCP6 For Next Release Job |
StratTrop | GLOMAP-mode | RADAER/ACTIVATE/ Gas-phase RF ON | Mohit Dalvi | 10.8 GA7.1 N96 |
NA | u-ao763 | See Developing Releases Table | None at present | Radiation GHG as per GC3.1 UKCA Trace Gas mmrs as per WMOA1+RCP6 | |
PI and PD ERF pair | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/ O3 CH4 N2O RF ON/CFCs through radiation panel | Fiona O'Connor | 10.7 GA7.1 N96 |
NA | u-ap664(PI) /u-ap663(PD) |
ukca_chem_eval_ap663_ap664.pdf | None at present | Radiation GHG as per GC3.1, UKCA LLGHGs mmrs as per CMIP6, UKCA chemistry ems as per CMIP5, UKCA aerosol ems as per CMIP6, | |
PI - atmos and coupled | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/ O3 CH4 N2O RF ON/CFCs through radiation panel | Fiona O'Connor | 10.7 GA7.1 N96 vs UKESM0.9 |
NA | u-ap664(atmos-only) /u-aq399(coupled) |
ukca_chem_eval_ap664_aq399.pdf | None at present | Radiation GHG as per GC3.1, UKCA LLGHGs mmrs as per CMIP6, UKCA chemistry ems as per CMIP5, UKCA aerosol ems as per CMIP6, Neither simulation includes PSC/NAT fixes |
Note: The fixed tau CH4 files refer to plots re-generated following a bug-fix to the plotting script. The previous plots/bug only considered CH4 burden in the Troposphere while calculating the lifetime.
Investigating Low OH, High Methane Lifetime in VN10.5 GA7.0 CheST/StratTrop + GLOMAP simulations
Suite-Id | Owner | UM version | Branches and Configuration Details (apart from CheST+GLOMAP+RADAER+UKCAGHG) |
Simulation Length | Plots | CH4 lifetime years Whole Atm vs OH ; ACCMIP=9.3 +/− 0.9 |
Mean OH molec/cm3 ACCMIP = 1.17(+/−0.1)e+06 |
Comments |
u-ac253 | FOC | vn10.3 | Lightning NOx 50%, Tropopause height bugfix ukca_ch2br2mmr=1.802e-11, ukca_h2mmr=3.453e-08 |
20 year, Plots:11-20yr | ac253_OH_Lawrence , ac253_ch4_lifetime | 8.63 | 8.98e+05 | Explosive-volc-SO2 emitted, Aero-surf-area=0 |
u-ad265 | MD | vn10.3 | Lightning NOx 50%, Tropopause height bugfix, Strat-Hetero aer-surf-area fixes ukca_ch2br2mmr=1.802e-11, ukca_h2mmr=3.453e-08 |
20 year, Plots:6-10yr | ad265_OH_Lawrence , ad265_ch4_lifetime | 9.65 | 8.0e+05 | Expl-volc-SO2 emitted |
u-ac961 | FOC | vn10.3 | Lightning NOx 50%, Tropopause height bugfix, ExplVolc_SO2 Off ukca_ch2br2mmr=1.802e-11, ukca_h2mmr=3.453e-08 |
20 year, Plots:6-10yr | ac961_OH_Lawrence , ac961_ch4_lifetime | 8.8 | 8.8e+05 | Expl-volc-SO2 Off |
puma-aa342 | MK | vn10.4 | Lightning NOx 50%, Tropopause height bugfix, Strat-Hetero aer-surf-area fixes, ExplVolc_SO2 Off ukca_ch2br2mmr=1.0000e-12, ukca_h2mmr=500.0e-09 |
10 year, Plots:6-10yr | aa342_OH_Lawrence , aa342_ch4_lifetime | 13.2 | 6.22e+05 | Expl-volc-SO2 Off |
u-ae771 | MD | vn10.5 | Lightning NOx 50%, Tropopause height bugfix, Strat-Hetero-psc aero-surf-area fixes, ExplVolc_SO2 Off ukca_ch2br2mmr=1.0000e-12, ukca_h2mmr=500.0e-09 |
20 year, Plots:11-20yr | ae771_OH_Lawrence , ae771_ch4_lifetime , | 14.3 | 5.73e+05 | Expl-volc-SO2 Off ae771_tropchem_evaluation_all |
u-af834 | MD | vn10.5 | Lightning NOx 50%, Tropopause height bugfix, Strat-Hetero-psc aero-surf-area fixes, ExplVolc_SO2 Off ukca_ch2br2mmr=1.802e-11, ukca_h2mmr=3.453e-08 |
20 year, Plots:11-20yr | af834_OH_Lawrence , af834_ch4_lifetime | 9.32 | 8.31e+05 | Expl-volc-SO2 Off af834_tropchem_evaluation_all |
Recent results from VN10.2 GA6.0#136.17 (including GLOMAP-mode) + CheST (StratTrop chemistry)
Model Run | Chemistry | Aerosol-microphys | Aerosol-optical | Owner | UM version | Monsoon job ID | Met Office ID | Link to chemistry evaluation | Link to aerosol evaluation | Link to Validation Note | Comments |
1 | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/Gas-phase RF OFF | Steven Hardiman | 10.2 | N/A | mi-ah813 | ah813.pdf ah813_updated.pdf | None at present | ai985 vs ah813 | Run for 20 years - plots based on last 10 years; Biogenic ems prescribed; No trop het chem; Lightning ems 10.7 TgN/yr; CH4 lifetime too short; Strat o3 max reduced and in better agreement with obs; Diagnosed STE flux of O3 clearly wrong. Updated pdf now includes updated methane lifetime calculation and nh_oh/sh_oh ratio. |
2 | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/O3, N2O, CH44 RF ON | Steven Hardiman | 10.2 | N/A | mi-ai985 | ai985.pdf ai985_updated.pdf | None at present | ai985 vs ah813 | Run for 20 years - plots based on last 10 years; Biogenic ems prescribed; No trop het chem; RF bugfix included; Lightning ems 10.7 TgN/yr; CH4 lifetime too short; Strat o3 max reduced and in better agreement with obs; Diagnosed STE flux of O3 clearly wrong. Updated pdf now includes updated methane lifetime calculation and nh_oh/sh_oh ratio. |
3 | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/O3, N2O, CH4 RF ON | Steven Hardiman | 10.2 | N/A | mi-aj868 | aj868.pdf aj868_updated.pdf | None at present | aj868 vs ai985 | RF bugfix included; Lightning emissions halved. Updated pdf now includes updated methane lifetime calculation and nh_oh/sh_oh ratio. Methane lifetime now increased. |
4 | StratTrop | GLOMAP-mode | RADAER/ACTIVATE/O3, N2O, CH4 RF OFF | João Teixeira | 10.2 | N/A | mi-ak384 | ak384.pdf | None at present | ak384 vs aj868 | RF bugfix included; Lightning emissions halved. Updated pdf now includes updated methane lifetime calculation and nh_oh/sh_oh ratio. |