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Dataset

 

UM-UKCA model data for study investigating the QBO response to large tropical eruptions

Update Frequency: Not Planned
Latest Data Update: 2023-03-29
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2023-04-05
DOI Publication Date: 2023-04-06
Download Stats: last 12 months
Dataset Size: 29 Files | 38GB

Abstract

This dataset contains summary 36-month data of the global mean volcanic stratospheric aerosol optical depth, temperature, sulfate aerosol mass concentration and wind velocities necessary for analysing the quasi-biennial oscillation (QBO). The data are from 8 model simulations of volcanic eruptions that have different sulfur dioxide emissions, eruption initiation date/season and QBO phase at the time of eruption. Three control ensembles were conducted for each initial condition. The simulations are from the Unified Model coupled with the United Kingdom Chemistry and Aerosol Scheme (UM-UKCA) Vn.11.2 and were conducted at a global resolution of 1.875 ° x 1.25°.

Variables for calculating the QBO momentum budget (w*, flux divergence) are contained in the files ending ‘_momentum.nc’.

There are files for each initial condition named '{SEASON}_{SO2_INJECTION_MAGNITUDE}_{QBO_PHASE}.nc'.

There are 12 control files to give three ensemble members for each initial condition. These files are named ‘{SEASON}_{QBO_PHASE}_control_{no.}.nc’ for example: ‘July_wQBO_control_2.nc’.

Citable as:  Brown, F.; Marshall, L.; Haynes, P.; Schmidt, A. (2023): UM-UKCA model data for study investigating the QBO response to large tropical eruptions. NERC EDS Centre for Environmental Data Analysis, 06 April 2023. doi:10.5285/5f7206e5854246a9ae7498305d620590. https://dx.doi.org/10.5285/5f7206e5854246a9ae7498305d620590
Abbreviation: Not defined
Keywords: UM-UKCA, QBO, quasi-biennial oscillation, tropical eruptions, volcanic

Details

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(s):
https://artefacts.ceda.ac.uk/licences/missing_licence.pdf
When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data were generated using the Met Office Unified Model coupled with the United Kingdom Chemistry and Aerosol Scheme (UM-UKCA) Vn.11.2.
Data was converted to netCDF

Data Quality:
Data as provided by author
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

Met Office Unified Model coupled with the United Kingdom Chemistry and Aerosol Scheme (UM-UKCA) Vn.11.2 deployed on ARCHER

Abstract

Met Office Unified Model coupled with the United Kingdom Chemistry and Aerosol Scheme (UM-UKCA) Vn.11.2 deployed on ARCHER

Input Description

None

Output Description

None

Software Reference

None

  • units: 1
  • var_id: saod_at_550_nm
  • long_name: SAOD at 550 nm
  • units: kg kg-1
  • var_id: so2
  • long_name: SO2
  • units: kg kg-1
  • var_id: so4_total
  • long_name: SO4_total
  • units: kg
  • var_id: air_mass
  • long_name: air_mass
  • units: Pa
  • standard_name: air_pressure
  • var_id: air_pressure
  • units: K
  • standard_name: air_temperature
  • var_id: air_temperature_0
  • units: hours
  • standard_name: forecast_period
  • var_id: forecast_period_1
  • var_id: forecast_period_0_bnds
  • var_id: forecast_period_1_bnds
  • var_id: forecast_period_bnds
  • units: hours
  • standard_name: forecast_reference_time
  • var_id: forecast_reference_time_1
  • var_id: latitude_longitude
  • units: m
  • standard_name: atmosphere_hybrid_height_coordinate
  • long_name: level_height
  • var_id: level_height
  • var_id: level_height_bnds
  • units: 1
  • standard_name: model_level_number
  • var_id: model_level_number
  • units: hPa
  • long_name: pressure
  • var_id: pressure_0
  • units: 1
  • long_name: pseudo_level
  • var_id: pseudo_level
  • units: 1
  • var_id: sigma
  • long_name: sigma
  • var_id: sigma_bnds
  • units: m
  • standard_name: surface_altitude
  • var_id: surface_altitude_0
  • var_id: time_bnds
  • units: W m-2
  • standard_name: toa_outgoing_longwave_flux
  • var_id: toa_outgoing_longwave_flux
  • units: W m-2
  • standard_name: toa_outgoing_shortwave_flux
  • var_id: toa_outgoing_shortwave_flux
  • units: m s-1
  • standard_name: upward_air_velocity
  • var_id: upward_air_velocity
  • units: m s-1
  • standard_name: x_wind
  • var_id: x_wind

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • var_id: latitude_1
  • units: degrees_east
  • standard_name: longitude
  • var_id: longitude_1
  • standard_name: time
  • var_id: time
  • units: hours
Coverage
Temporal Range
Start time:
1988-09-01T00:00:00
End time:
1997-09-01T00:00:00
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°