This website uses cookies. By continuing to use this website you are agreeing to our use of cookies. 



Global model data generated for volcanic halogen simulations: United Kingdom Earth System Model 1.0 (UKESM1.0), Unified Model version 11.2, N96L85, 1990s timeslice.

Update Frequency: Not Planned
Status: Ongoing
Online Status: ONLINE
Publication State: Preview
Publication Date:


This dataset contains global model data generated for volcanic halogen simulations. Model used was the United Kingdom Earth System Model 1.0 (UKESM1.0), in an atmosphere-only configuration, with Met Office Unified Model version 11.2. The data is on a global N96 grid (192 x 144 points), and is a mid 1990s timeslice. These data were used to study the impact of co-emission of volcanic halogens on atmospheric composition and radiative forcing.

There are 6 experimental integrations for sulfur only (u-bw537, u-bw539, u-bw541, u-bs104, u-bs110, u-bs112) and sulfur & halogens (u-bw538, u-bw540, u-bw542, u-bs109, u-bs111, u-bs113), and a control (u-bs034) for each year. The files are labeled using variable codes such as m01s34i001 to determine the model variable field contained. A full description of what these are can be found in the included file variable_codes.txt.

The datasets are in NetCDF format, and were generated from the above model suites.

Citable as:  [ PROVISIONAL ] Staunton Sykes, J.; Shin, Y.; Aubry, T.; Weber, J.; Marshall, L.; Abraham, L.; Schmidt, A.; Archibald, A. (9999): Global model data generated for volcanic halogen simulations: United Kingdom Earth System Model 1.0 (UKESM1.0), Unified Model version 11.2, N96L85, 1990s timeslice.. Centre for Environmental Data Analysis, date of citation.
Abbreviation: Not defined
Keywords: UM, volcanic, halogen, sulfur


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Simulations run on Met Office MONSooN2. Data extracted from MASS to JASMIN as PP files. Converted to Cf-compliant NetCDF format using Python 3.7.1. The data were then delivered to the Centre for Environmental Data Anaylsis (CEDA) for archiving.

Data Quality:
Data are as given by the data provider, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA)
File Format:
Data are netCDF formatted.

Related Documents

No documents related to this record were found.

Process overview

This dataset was generated by the computation detailed below.
Title UK Chemistry Aerosol Community Model - UKCA deployed on Cambridge University computer
Abstract This computation involved: UK Chemistry Aerosol Community Model - UKCA deployed on Cambridge University computer. UKCA is a joint NCAS-Met Office programme funded by NCAS, GMR and DEFRA. Project partners are the Hadley Centre and the Universities of Cambridge and Leeds. Our objective is to develop, evaluate and make available a new UK community atmospheric chemistry-aerosol global model suitable for a range of topics in climate and environmental change research.
Input Description None
Output Description None
Software Reference None
  • var_id: air_temperature
  • units: hours
  • standard_name: forecast_period
  • var_id: forecast_period
  • names: forecast_period
  • var_id: forecast_period_bnds
  • standard_name: forecast_reference_time
  • var_id: forecast_reference_time
  • names: forecast_reference_time
  • var_id: latitude_longitude
  • units: m
  • long_name: level_height
  • var_id: level_height
  • names: level_height
  • var_id: level_height_bnds
  • var_id: m01s01i517
  • var_id: m01s01i519
  • var_id: m01s02i251
  • var_id: m01s02i252
  • var_id: m01s02i253
  • var_id: m01s02i254
  • var_id: m01s02i517
  • var_id: m01s02i519
  • var_id: m01s34i099
  • var_id: m01s34i966
  • var_id: m01s38i423
  • var_id: m01s38i424
  • var_id: m01s38i425
  • var_id: m01s38i426
  • var_id: m01s50i063
  • var_id: m01s50i219
  • units: kg kg-1
  • long_name: mass_fraction_of_lumped_chlorine_expressed_as_hydrogen_chloride
  • var_id: mass_fraction_of_lumped_chlorine_expressed_as_hydrogen_chloride
  • names: mass_fraction_of_lumped_chlorine_expressed_as_hydrogen_chloride
  • units: kg kg-1
  • standard_name: mass_fraction_of_methane_in_air
  • var_id: mass_fraction_of_methane_in_air
  • names: mass_fraction_of_methane_in_air
  • units: kg kg-1
  • standard_name: mass_fraction_of_ozone_in_air
  • var_id: mass_fraction_of_ozone_in_air
  • names: mass_fraction_of_ozone_in_air
  • units: kg kg-1
  • standard_name: mass_fraction_of_sulfur_dioxide_in_air
  • var_id: mass_fraction_of_sulfur_dioxide_in_air
  • names: mass_fraction_of_sulfur_dioxide_in_air
  • units: kg kg-1
  • standard_name: mass_fraction_of_sulfuric_acid_in_air
  • var_id: mass_fraction_of_sulfuric_acid_in_air
  • names: mass_fraction_of_sulfuric_acid_in_air
  • units: kg kg-1
  • long_name: mass_fraction_of_sulfuric_acid_in_soluble_accumulation_mode_dry_aerosol_in_air
  • var_id: mass_fraction_of_sulfuric_acid_in_soluble_accumulation_mode_dry_aerosol_in_air
  • names: mass_fraction_of_sulfuric_acid_in_soluble_accumulation_mode_dry_aerosol_in_air
  • units: kg kg-1
  • long_name: mass_fraction_of_sulfuric_acid_in_soluble_aitken_mode_dry_aerosol_in_air
  • var_id: mass_fraction_of_sulfuric_acid_in_soluble_aitken_mode_dry_aerosol_in_air
  • names: mass_fraction_of_sulfuric_acid_in_soluble_aitken_mode_dry_aerosol_in_air
  • units: kg kg-1
  • long_name: mass_fraction_of_sulfuric_acid_in_soluble_coarse_mode_dry_aerosol_in_air
  • var_id: mass_fraction_of_sulfuric_acid_in_soluble_coarse_mode_dry_aerosol_in_air
  • names: mass_fraction_of_sulfuric_acid_in_soluble_coarse_mode_dry_aerosol_in_air
  • units: kg kg-1
  • long_name: mass_fraction_of_sulfuric_acid_in_soluble_nucleation_mode_dry_aerosol_in_air
  • var_id: mass_fraction_of_sulfuric_acid_in_soluble_nucleation_mode_dry_aerosol_in_air
  • names: mass_fraction_of_sulfuric_acid_in_soluble_nucleation_mode_dry_aerosol_in_air
  • units: 1
  • standard_name: model_level_number
  • var_id: model_level_number
  • names: model_level_number
  • units: 1
  • long_name: pseudo_level
  • var_id: pseudo_level
  • names: pseudo_level
  • units: 1
  • var_id: sigma
  • long_name: sigma
  • names: sigma
  • var_id: sigma_bnds
  • units: kg kg-1
  • standard_name: specific_humidity
  • var_id: specific_humidity
  • names: specific_humidity
  • var_id: time_bnds
  • units: W m-2
  • standard_name: toa_outgoing_longwave_flux
  • var_id: toa_outgoing_longwave_flux
  • names: toa_outgoing_longwave_flux
  • units: W m-2
  • standard_name: toa_outgoing_shortwave_flux
  • var_id: toa_outgoing_shortwave_flux
  • names: toa_outgoing_shortwave_flux

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • var_id: latitude
  • names: latitude
  • units: degrees_east
  • standard_name: longitude
  • var_id: longitude
  • names: longitude
  • standard_name: time
  • var_id: time
  • names: time
Temporal Range
Start time:
End time:
Geographic Extent