Open ncolombi opened 10 months ago
Hi @ncolombi. I took your geoschem_config.yml
and HEMCO_Config.rc
files and did an "out-of-the-box" tagged O3 simulation using your generated prod/loss rates. I came to the same conclusion as you:
I think I see what is happening here. In the module GeosCore/tagged_o3_mod.F90
we have:
! Loop over the # of advected species
!$OMP PARALLEL DO &
!$OMP DEFAULT( SHARED )&
!$OMP PRIVATE( I, J, L, N, LO3_kg, LO3_kgps, PO3_kg, PO3_kgps )&
!$OMP COLLAPSE( 3 )&
!$OMP SCHEDULE( DYNAMIC, 4 )
DO L = 1, State_Grid%NZ
DO J = 1, State_Grid%NY
DO I = 1, State_Grid%NX
!=====================================================================
! Convert P(O3) and L(O3) from [molec/cm3/s] -> [kg]
! cf. https://github.com/geoschem/geos-chem/issues/1109 by Xingpei Ye
!=====================================================================
! P(O3) in [kg/s] and [kg]
PO3_kgps = PO3_hco(I,J,L) & ! in molec/cm3/s
* molcm3_to_kgm3 & ! molec/cm3/s -> kg/m3/s
* State_Met%AIRVOL(I,J,L) ! kg/m3/s -> kg/s
PO3_kg = PO3_kgps * dtChem ! kg/s -> kg
! L(O3) in [kg/s] and [kg]
LO3_kgps = LO3_hco(I,J,L) & ! in molec/cm3/s
* molcm3_to_kgm3 & ! molec/cm3/s -> kg/m3/s
* State_Met%AIRVOL(I,J,L) ! kg/m3/s -> kg/s
LO3_kg = LO3_kgps * dtchem ! kg/s -> kg
! Prevent denormal values
PO3_kg = MAX( PO3_kg, 1.0e-30_fp )
PO3_kgps = MAX( PO3_kgps, 1.0e-30_fp )
LO3_kg = MAX( LO3_kg, 1.0e-30_fp )
LO3_kgps = MAX( LO3_kgps, 1.0e-30_fp )
... etc skipped ...
!=====================================================================
! Apply chemical production of ozone (only where it is produced)
!=====================================================================
! Add P(O3) [kg] to the total O3 species
Spc(id_O3)%Conc(I,J,L) = Spc(id_O3)%Conc(I,J,L) + PO3_kg
! Add P(O3) [kg] to the stratospheric O3 species
IF ( State_Met%InStratosphere(I,J,L) ) THEN
Spc(id_O3Strat)%Conc(I,J,L) = Spc(id_O3Strat)%Conc(I,J,L) + PO3_kg
ENDIF
I think the State_Met%InStratosphere(I,J,L)
is excluding the mesosphere... this is only TRUE if you are in the stratosphere but not the mesosphere. Try replacing this with State_Met%InStratMeso(I,J,L)
, which should be TRUE if you are anywhere above the tropopause.
Also tagging @msulprizio
@ncolombi: We can add a fix for this in the dev/no-diff-to-benchmark
branch, which will be mergeable at any time.
Name and Institution (Required)
Name: Nadia Colombi Institution: Harvard
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Description of your issue or question
I ran the GC version 14.2.0 tagged ozone simulation, and it finished with no errors. I allowed 5 months of spinup for the run, and the free tropospheric ozone (O3_VV) looks normal (figure 1 below), however, the O3strat_VV diagnostic is showing values of 0 for everywhere in the atmosphere apart from the upper stratosphere (figures 2, 3, 4). I am using ProdLoss files from a previous run so that regional emissions can be included. I ran a separate simulation out of the box with 1.5 years of spinup to make sure the ProdLoss files weren't the issue, but ran into the same problem. My HEMCO_Config.rc and geoschem_config.yml files are attached.
Figure 1
Free tropospheric (800-400 hPa) ozone (O3_VV in ppb) averaged for May-June![Screen Shot 2023-10-30 at 2 31 50 PM](https://github.com/geoschem/geos-chem/assets/55603859/c89d56c2-0907-4027-90b9-8ed94212b696)
Figure 2
Tagged stratosphere (O3strat_VV) ozone in ppb for the free troposphere for May-June![Screen Shot 2023-10-30 at 2 30 33 PM (1)](https://github.com/geoschem/geos-chem/assets/55603859/8d6bff4d-3cf1-4029-b966-095bd5d37103)
Figure 3
Tagged stratospheric (O3strat_VV) ozone profile (pressure vs. ozone in ppb)![Screen Shot 2023-11-01 at 2 15 25 PM](https://github.com/geoschem/geos-chem/assets/55603859/64ec31c8-c949-4d73-988d-071877f6619f)
Figure 4
Zonal tagged stratosphere ozone (O3strat_VV) plot for May-June
Please provide as much detail as possible. Always include the GEOS-Chem version number and any relevant configuration and log files.
files.zip