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Dataset

 

TOMCAT (VSLS): Sources and Impacts of Short-Lived Anthropogenic Chlorine

Update Frequency: Not Planned
Latest Data Update: 2026-05-26
Status: Pending
Online Status: ONLINE
Publication State: Preview
Publication Date:
  Citations: 4
THIS RECORD HAS NOT BEEN PUBLISHED YET - PREVIEW ONLY!
Abstract

The TOMCAT (Three-dimensional Off-line Chemical Transport Model (CTM) designed to represent the complex interactions between atmospheric chemistry, dynamics, and transport. Simulation is performed using external meteorological reanalysis fields (ERA5) for January 1977 to March 2025. Model simulates the evolution of chemical species by integrating time-varying emissions, solar fluxes, and stratospheric aerosol data. By utilizing predefined scenarios, such as the WMO 2022 projections, the TOMCAT model provides a consistent framework for investigating how short-lived substances and ozone-depleting gases influence stratospheric composition and climate feedback mechanisms over decadal timescales.

The data are pre-processed (zonal mean monthly mean on pressure and height levels).

Citable as:  [ PROVISIONAL ] University Of Leeds; Dhomse, S.; Chipperfield, M. (9999): TOMCAT (VSLS): Sources and Impacts of Short-Lived Anthropogenic Chlorine. NERC EDS Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/e020b3328b064b76898bb6e25b7b78d5
Cite this dataset

Abbreviation: Not defined
Keywords: VSLS, CTM, Stratosphere

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Please contact the data centre for details on how to access these data.
For data use licensing information please contact:
support@ceda.ac.uk
Data lineage:

The TOMCAT simulation data is from the RUN781 experiment, which was performed on the ARCHER/ARCHER2 supercomputing facilities using the TOMCAT three-dimensional chemical transport model to investigate the impact of short-lived anthropogenic chlorine on the stratosphere. Before being archived at the Centre for Environmental Data Analysis (CEDA), the raw model output underwent a systematic post-processing. Specific tracer was extracted from the model output file, then it was interpolated from native model vertical grid levels onto a common set of pressure (1000 to 0.1 hPa) and geometric height (1 to 60 km) coordinates, and performing zonal averaging over longitude. Finally, the data was converted into NetCDF format.
Data Quality:
NO
File Format:
NetCDF

Related Documents

No documents related to this record were found.

Citations: 4

The following citations have been automatically harvested from external sources associated with this resource where DOI tracking is possible. As such some citations may be missing from this list whilst others may not be accurate. Please contact the helpdesk to raise any issues to help refine these citation trackings.

Chipperfield, M. P. (1999), Multiannual simulations with a three-dimensional chemical transport model, J. Geophys. Res., 104(D1), 1781–1805, doi:10.1029/98JD02597. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/98JD02597
Chipperfield, M.P., Heddell, S.G., Dhomse, S.S. et al. (2025), Ongoing large ozone depletion in the polar lower stratospheres: the role of increased water vapour, Faraday Discussions, 258(0), 216–233. https://doi.org/10.1039/D4FD00163J. https://pubs.rsc.org/en/content/articlelanding/2025/fd/d4fd00163j
Dhomse, S. and Chipperfield, M. (2026), TCOM-CFC11 and TCOM-CFC12: A Gap-Free, Observationally Constrained Global Dataset of Stratospheric CFC-11 and CFC-12 Profiles (v2.0), Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2026-3. https://essd.copernicus.org/preprints/essd-2026-3/
Zhou, X., Chen, Q., Feng, W. et al. (2026), Residence time of Hunga stratospheric water vapour perturbation quantified at 9 years, Commun Earth Environ 7, 198. https://doi.org/10.1038/s43247-026-03216-5. https://doi.org/10.1038/s43247-026-03216-5

Process overview

  • units: years
  • standard_name: age_of_stratospheric_air
  • var_id: AoA
  • long_name: Monthly mean zonal mean age of air
  • units: K
  • standard_name: air_temperature
  • var_id: te
  • long_name: Monthly mean zonal mean air temperature
  • units: 1
  • var_id: BR
  • long_name: Monthly mean zonal mean volume mixing ratio of BR
  • units: 1
  • var_id: BRCL
  • long_name: Monthly mean zonal mean volume mixing ratio of BRCL
  • units: 1
  • var_id: BRNO3
  • long_name: Monthly mean zonal mean volume mixing ratio of BRNO3
  • units: 1
  • var_id: BRO
  • long_name: Monthly mean zonal mean volume mixing ratio of BRO
  • units: 1
  • var_id: C2CL4
  • long_name: Monthly mean zonal mean volume mixing ratio of C2CL4
  • units: 1
  • var_id: CCL4
  • long_name: Monthly mean zonal mean volume mixing ratio of CCL4
  • units: 1
  • var_id: CH2BR2
  • long_name: Monthly mean zonal mean volume mixing ratio of CH2BR2
  • units: 1
  • var_id: CH2CL2
  • long_name: Monthly mean zonal mean volume mixing ratio of CH2CL2
  • units: 1
  • var_id: CH2O
  • standard_name: mole_fraction_of_formaldehyde_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of CH2O
  • units: 1
  • standard_name: mole_fraction_of_methyl_bromide_in_air
  • var_id: CH3BR
  • long_name: Monthly mean zonal mean volume mixing ratio of CH3BR
  • units: 1
  • var_id: CH3CL
  • long_name: Monthly mean zonal mean volume mixing ratio of CH3CL
  • units: 1
  • var_id: CH3I
  • long_name: Monthly mean zonal mean volume mixing ratio of CH3I
  • units: 1
  • var_id: CH4
  • standard_name: mole_fraction_of_methane_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of CH4
  • units: 1
  • var_id: CHBR3
  • long_name: Monthly mean zonal mean volume mixing ratio of CHBR3
  • units: 1
  • var_id: CHCL3
  • long_name: Monthly mean zonal mean volume mixing ratio of CHCL3
  • units: 1
  • standard_name: mole_fraction_of_atomic_chlorine_in_air
  • var_id: CL
  • long_name: Monthly mean zonal mean volume mixing ratio of CL
  • units: 1
  • var_id: CL2
  • long_name: Monthly mean zonal mean volume mixing ratio of CL2
  • units: 1
  • var_id: CL2O2
  • long_name: Monthly mean zonal mean volume mixing ratio of CL2O2
  • units: 1
  • standard_name: mole_fraction_of_chlorine_monoxide_in_air
  • var_id: CLO
  • long_name: Monthly mean zonal mean volume mixing ratio of CLO
  • units: 1
  • standard_name: mole_fraction_of_chlorine_nitrate_in_air
  • var_id: CLONO2
  • long_name: Monthly mean zonal mean volume mixing ratio of CLONO2
  • units: 1
  • var_id: CO
  • long_name: Monthly mean zonal mean volume mixing ratio of CO
  • units: 1
  • var_id: COCL2
  • long_name: Monthly mean zonal mean volume mixing ratio of COCL2
  • units: 1
  • var_id: COF2
  • long_name: Monthly mean zonal mean volume mixing ratio of COF2
  • units: 1
  • var_id: COFCL
  • long_name: Monthly mean zonal mean volume mixing ratio of COFCL
  • units: 1
  • var_id: DCE
  • long_name: Monthly mean zonal mean volume mixing ratio of DCE
  • units: 1
  • standard_name: mole_fraction_of_cfc11_in_air
  • var_id: F11
  • long_name: Monthly mean zonal mean volume mixing ratio of F11
  • units: 1
  • var_id: F113
  • long_name: Monthly mean zonal mean volume mixing ratio of F113
  • units: 1
  • var_id: F114
  • long_name: Monthly mean zonal mean volume mixing ratio of F114
  • units: 1
  • var_id: F115
  • long_name: Monthly mean zonal mean volume mixing ratio of F115
  • units: 1
  • standard_name: mole_fraction_of_cfc12_in_air
  • var_id: F12
  • long_name: Monthly mean zonal mean volume mixing ratio of F12
  • units: 1
  • var_id: F12B1
  • long_name: Monthly mean zonal mean volume mixing ratio of F12B1
  • units: 1
  • var_id: F13B1
  • long_name: Monthly mean zonal mean volume mixing ratio of F13B1
  • units: 1
  • var_id: F141B
  • long_name: Monthly mean zonal mean volume mixing ratio of F141B
  • units: 1
  • var_id: F142B
  • long_name: Monthly mean zonal mean volume mixing ratio of F142B
  • units: 1
  • var_id: F22
  • long_name: Monthly mean zonal mean volume mixing ratio of F22
  • units: 1
  • var_id: H
  • long_name: Monthly mean zonal mean volume mixing ratio of H
  • units: 1
  • var_id: H134A
  • long_name: Monthly mean zonal mean volume mixing ratio of H134A
  • units: 1
  • var_id: H152A
  • long_name: Monthly mean zonal mean volume mixing ratio of H152A
  • units: 1
  • var_id: H2O
  • standard_name: mole_fraction_of_water_vapor_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of H2O
  • units: 1
  • var_id: H2O2
  • long_name: Monthly mean zonal mean volume mixing ratio of H2O2
  • units: 1
  • var_id: H2SO4
  • long_name: Monthly mean zonal mean volume mixing ratio of H2SO4
  • units: 1
  • var_id: HBR
  • long_name: Monthly mean zonal mean volume mixing ratio of HBR
  • units: 1
  • standard_name: mole_fraction_of_hydrogen_chloride_in_air
  • var_id: HCL
  • long_name: Monthly mean zonal mean volume mixing ratio of HCL
  • units: 1
  • var_id: HCN
  • long_name: Monthly mean zonal mean volume mixing ratio of HCN
  • units: 1
  • var_id: HF
  • long_name: Monthly mean zonal mean volume mixing ratio of HF
  • units: 1
  • var_id: HFC23
  • long_name: Monthly mean zonal mean volume mixing ratio of HFC23
  • units: 1
  • var_id: HI
  • long_name: Monthly mean zonal mean volume mixing ratio of HI
  • units: 1
  • var_id: HNO3
  • standard_name: mole_fraction_of_nitric_acid_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of HNO3
  • units: 1
  • var_id: HO2
  • standard_name: mole_fraction_of_hydroperoxyl_radical_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of HO2
  • units: 1
  • standard_name: mole_fraction_of_peroxynitric_acid_in_air
  • var_id: HO2NO2
  • long_name: Monthly mean zonal mean volume mixing ratio of HO2NO2
  • units: 1
  • var_id: HOBR
  • long_name: Monthly mean zonal mean volume mixing ratio of HOBR
  • units: 1
  • standard_name: mole_fraction_of_hypochlorous_acid_in_air
  • var_id: HOCL
  • long_name: Monthly mean zonal mean volume mixing ratio of HOCL
  • units: 1
  • var_id: HOI
  • long_name: Monthly mean zonal mean volume mixing ratio of HOI
  • units: 1
  • var_id: I
  • long_name: Monthly mean zonal mean volume mixing ratio of I
  • units: 1
  • var_id: INO3
  • long_name: Monthly mean zonal mean volume mixing ratio of INO3
  • units: 1
  • var_id: IO
  • long_name: Monthly mean zonal mean volume mixing ratio of IO
  • units: 1
  • var_id: MCFM
  • long_name: Monthly mean zonal mean volume mixing ratio of MCFM
  • units: 1
  • var_id: MHP
  • long_name: Monthly mean zonal mean volume mixing ratio of MHP
  • units: 1
  • var_id: N
  • standard_name: mole_fraction_of_atomic_nitrogen_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of N
  • units: 1
  • var_id: N2O
  • standard_name: mole_fraction_of_nitrous_oxide_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of N2O
  • units: 1
  • var_id: N2O5
  • long_name: Monthly mean zonal mean volume mixing ratio of N2O5
  • units: 1
  • var_id: NO
  • standard_name: mole_fraction_of_nitrogen_monoxide_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of NO
  • units: 1
  • var_id: NO2
  • standard_name: mole_fraction_of_nitrogen_dioxide_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of NO2
  • units: 1
  • var_id: NO3
  • long_name: Monthly mean zonal mean volume mixing ratio of NO3
  • units: 1
  • var_id: O
  • long_name: Monthly mean zonal mean volume mixing ratio of O
  • units: 1
  • var_id: O1D
  • long_name: Monthly mean zonal mean volume mixing ratio of O1D
  • units: 1
  • var_id: O3
  • standard_name: mole_fraction_of_ozone_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of O3
  • units: 1
  • var_id: OCLO
  • long_name: Monthly mean zonal mean volume mixing ratio of OCLO
  • units: 1
  • var_id: OH
  • standard_name: mole_fraction_of_hydroxyl_radical_in_air
  • long_name: Monthly mean zonal mean volume mixing ratio of OH
  • units: 1
  • var_id: OIO
  • long_name: Monthly mean zonal mean volume mixing ratio of OIO
  • units: 1
  • var_id: OXP
  • long_name: Monthly mean zonal mean volume mixing ratio of OXP
  • standard_name: altitude
  • units: km
  • var_id: lev
  • long_name: geometric_height
  • units: hPa
  • standard_name: air_pressure
  • var_id: lev
  • long_name: pressure_level
  • var_id: time_bnds
  • long_name: time coordinate boundaries

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • long_name: latitude
  • var_id: lat
  • long_name: time
  • standard_name: time
  • var_id: time
  • units: days
Coverage
Temporal Range
Start time:
1977-01-01T00:00:00
End time:
2026-03-31T00:00:00
Non-Geographic Data
Related parties
Authors (3)
Publishers (1)
Funders (1)
Principal Investigators (1)