Dataset
piClim-370-SAS126aer data produced by the UKESM1-0-LL model for the Regional Aerosol Model Intercomparison Project (RAMIP)
Abstract
This record contains data for the piClim-370-SAS126aer experiment simulations from the Regional Aerosol Model Intercomparison Project (RAMIP), produced using UKESM1-0-LL. It contains NetCDF output for a set of experiments with anthropogenic emissions for the year 2050 and fixed, pre-industrial, sea surface temperatures, sea ice extent, and land use. For a full description of the experiments, see: https://gmd.copernicus.org/articles/16/4451/2023/.
The piClim-370-SAS126aer experiment is a fixed sea surface temperature (SST) experiment with 1850 SSTs and sea ice concentrations, following the RFMIP piClim experiment designs. Aerosol and precursor emissions (SO2, black carbon and organic carbon) over South Asia are taken from year 2050 of SSP1-2.6, while all other anthropogenic emissions and land use are taken from SSP3-7.0 At least 30 years are requested. South Asia is the region bounded by 65 and 95E and 5 and 35N.
The simulations are initialised from the CMIP6 historical experiment. Anthropogenic emissions designed for the ScenarioMIP experiments SSP3-7.0 and SSP1-2.6 are used. All experiments follow SSP3-7.0, with perturbations to regional aerosol and precursor emissions using SSP1-2.6 emissions, following the RAMIP protocol. Data are provided for a subset of CMIP6 variables, following their CMIP6 definitions. Some 3D variables are produced at reduced vertical resolution compared to CMIP6. These are identified with new variable names, as set out in the RAMIP data request: https://gmd.copernicus.org/articles/16/4451/2023/
Acronyms
------------
UKESM1: the United Kingdom Earth System Model UKESM1
SSP1-2.6: experiment based on Shared Socioeconomic Pathway SSP1 with low climate change mitigation and adaptation challenges and RCP2.6, a future pathway with a radiative forcing of 2.6 W/m2 in the year 2100.
SSP3-7.0: experiment based on Shared Socioeconomic Pathway SSP3 which is characterised by high challenges to both mitigation and adaptation and RCP7.0, a future pathway with a radiative forcing of 7.0 W/m2 in the year 2100.
ScenarioMIP: the Scenario Model Intercomparison Project simulates climate outcomes based on alternative plausible future scenarios.
CMIP6: is the sixth phase of the Coupled Model Intercomparison Project, a global collaboration of climate modellers.
RFMIP: The Radiative Forcing Model Intercomparison Project.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| 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 simulations are initialised from the CMIP6 historical experiment. Anthropogenic emissions designed for the ScenarioMIP experiments SSP3-7.0 and SSP1-2.6 are used. All experiments follow SSP3-7.0, with perturbations to regional aerosol and precursor emissions using SSP1-2.6 emissions, following the RAMIP protocol. Data are provided for a subset of CMIP6 variables, following their CMIP6 definitions. Some 3D variables are produced at reduced vertical resolution compared to CMIP6. These are identified with new variable names, as set out in the RAMIP data request: https://gmd.copernicus.org/articles/16/4451/2023/ Fixed sea surface temperature (piClim) simulations are copies of the piClim-aer experiment performed for RFMIP (for CMIP6), but with RAMIP emissions for 2050. The data were post-processed after CMORization to follow CMIP6Plus |
| Data Quality: |
Quality control checks (CEDA-CC and CF compliance) were performed by the Centre for Environmental Data Analysis (CEDA) to ensure that the data meets the RAMIP and CMIP6Plus metadata requirements.
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| File Format: |
NetCDF
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Related Documents
| RAMIP experiment description paper |
| UKESM1 model description paper |
Process overview
| Title | UKESM1-0-LL |
| Abstract | The UKESM1.0-N96ORCA1 climate model, released in 2018, includes the following components: The model was run by the National Centre for Atmospheric Science at the Met Office Hadley Centre, Fitzroy Road, Exeter, Devon, EX1 3PB, UK (MOHC) in native nominal resolutions: aerosol: 250 km, atmos: 250 km, atmosChem: 250 km, land: 250 km, ocean: 100 km, ocnBgchem: 100 km, seaIce: 100 km. |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
- units: kg kg-1
- var_id: mmrso4
- long_name: Aerosol Sulfate Mass Mixing Ratio
- standard_name: mass_fraction_of_sulfate_dry_aerosol_particles_in_air
- units: K
- standard_name: air_temperature
- var_id: ta
- long_name: Air Temperature
- units: 1
- var_id: abs550aer
- long_name: Ambient Aerosol Absorption Optical Thickness at 550nm
- standard_name: atmosphere_absorption_optical_thickness_due_to_ambient_aerosol_particles
- units: 1
- var_id: od550aer
- long_name: Ambient Aerosol Optical Thickness at 550nm
- standard_name: atmosphere_optical_thickness_due_to_ambient_aerosol_particles
- units: 1
- var_id: od550lt1aer
- long_name: Ambient Fine Aerosol Optical Depth at 550nm
- standard_name: atmosphere_optical_thickness_due_to_pm1_ambient_aerosol_particles
- units: kg m-2 s-1
- var_id: cheaqpso4
- long_name: Aqueous-Phase Production Rate of SO4
- standard_name: tendency_of_atmosphere_mass_content_of_sulfate_dry_aerosol_particles_due_to_aqueous_phase_net_chemical_production
- units: m
- standard_name: atmosphere_boundary_layer_thickness
- long_name: Boundary Layer Depth
- var_id: bldep
- units: %
- standard_name: cloud_area_fraction_in_atmosphere_layer
- var_id: clhcalipso
- long_name: CALIPSO High Level Cloud Area Percentage
- units: %
- standard_name: cloud_area_fraction_in_atmosphere_layer
- var_id: cllcalipso
- long_name: CALIPSO Low Level Cloud Cover Percentage
- units: %
- standard_name: cloud_area_fraction_in_atmosphere_layer
- var_id: clmcalipso
- long_name: CALIPSO Mid Level Cloud Cover Percentage
- units: m-3
- standard_name: number_concentration_of_cloud_liquid_water_particles_in_air
- var_id: cdnc
- long_name: Cloud Liquid Droplet Number Concentration
- units: m
- long_name: Cloud-Top Effective Droplet Radius
- var_id: reffclwtop
- standard_name: effective_radius_of_cloud_liquid_water_particles_at_liquid_water_cloud_top
- units: m-2
- long_name: Column Integrated Cloud Droplet Number
- standard_name: atmosphere_number_content_of_cloud_droplets
- var_id: cldnvi
- units: kg m-2
- var_id: clwvi
- long_name: Condensed Water Path
- standard_name: atmosphere_mass_content_of_cloud_condensed_water
- units: kg m-2 s-1
- standard_name: atmosphere_net_upward_convective_mass_flux
- var_id: mc
- long_name: Convective Mass Flux
- units: K
- standard_name: air_temperature
- var_id: tasmax
- long_name: Daily Maximum Near-Surface Air Temperature
- units: K
- standard_name: air_temperature
- var_id: tasmin
- long_name: Daily Minimum Near-Surface Air Temperature
- units: kg m-2 s-1
- long_name: Dry Deposition Rate of Dust
- var_id: drydust
- standard_name: minus_tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_particles_due_to_dry_deposition
- units: kg kg-1
- var_id: mmrdust
- long_name: Dust Aerosol Mass Mixing Ratio
- standard_name: mass_fraction_of_dust_dry_aerosol_particles_in_air
- units: 1
- var_id: od550dust
- long_name: Dust Optical Thickness at 550nm
- standard_name: atmosphere_optical_thickness_due_to_dust_ambient_aerosol_particles
- units: m s-1
- standard_name: eastward_wind
- var_id: uas
- long_name: Eastward Near-Surface Wind
- units: m s-1
- standard_name: eastward_wind
- long_name: Eastward Wind
- var_id: ua19
- units: kg kg-1
- var_id: mmrbc
- long_name: Elemental Carbon Mass Mixing Ratio
- standard_name: mass_fraction_of_elemental_carbon_dry_aerosol_particles_in_air
- units: kg m-2 s-1
- var_id: evspsbl
- long_name: Evaporation Including Sublimation and Transpiration
- standard_name: water_evapotranspiration_flux
- units: kg m-2 s-1
- var_id: chegpso4
- long_name: Gas-Phase Production Rate of SO4
- standard_name: tendency_of_atmosphere_mass_content_of_sulfate_dry_aerosol_particles_due_to_gaseous_phase_net_chemical_production
- units: m
- standard_name: geopotential_height
- var_id: zg
- long_name: Geopotential Height
- units: kg m-2
- long_name: Ice Water Path
- var_id: clivi
- standard_name: atmosphere_mass_content_of_cloud_ice
- var_id: emilnox
- long_name: Layer-Integrated Lightning Production of NOx
- standard_name: tendency_of_atmosphere_moles_of_nox_expressed_as_nitrogen
- units: mol s-1
- standard_name: mole_fraction_of_ozone_in_air
- long_name: Mole Fraction of O3
- units: mol mol-1
- var_id: o3
- units: K
- standard_name: air_temperature
- var_id: tas
- long_name: Near-Surface Air Temperature
- standard_name: relative_humidity
- units: %
- long_name: Near-Surface Relative Humidity
- var_id: hurs
- units: 1
- standard_name: specific_humidity
- var_id: huss
- long_name: Near-Surface Specific Humidity
- units: m s-1
- standard_name: northward_wind
- var_id: vas
- long_name: Northward Near-Surface Wind
- units: m s-1
- standard_name: northward_wind
- long_name: Northward Wind
- var_id: va19
- units: Pa s-1
- standard_name: lagrangian_tendency_of_air_pressure
- var_id: wap
- long_name: Omega (=dp/dt)
- units: %
- standard_name: cloud_area_fraction_in_atmosphere_layer
- var_id: cl
- long_name: Percentage Cloud Cover
- var_id: pr
- units: kg m-2 s-1
- standard_name: precipitation_flux
- long_name: Precipitation
- units: nm
- var_id: wavelength
- standard_name: radiation_wavelength
- long_name: Radiation Wavelength 550 nanometers
- units: Pa
- var_id: psl
- long_name: Sea Level Pressure
- standard_name: air_pressure_at_mean_sea_level
- units: kg kg-1
- var_id: mmrss
- long_name: Sea-Salt Aerosol Mass Mixing Ratio
- standard_name: mass_fraction_of_sea_salt_dry_aerosol_particles_in_air
- units: kg m-2 s-1
- standard_name: snowfall_flux
- var_id: prsn
- long_name: Snowfall Flux
- units: 1
- standard_name: specific_humidity
- long_name: Specific Humidity
- var_id: hus19
- units: Pa
- standard_name: surface_air_pressure
- var_id: ps
- long_name: Surface Air Pressure
- units: m
- long_name: Surface Altitude
- var_id: orog
- units: W m-2
- standard_name: surface_downwelling_longwave_flux_in_air_assuming_clear_sky
- var_id: rldscs
- long_name: Surface Downwelling Clear-Sky Longwave Radiation
- units: W m-2
- standard_name: surface_downwelling_shortwave_flux_in_air_assuming_clear_sky
- var_id: rsdscs
- long_name: Surface Downwelling Clear-Sky Shortwave Radiation
- units: W m-2
- standard_name: surface_downwelling_longwave_flux_in_air
- var_id: rlds
- long_name: Surface Downwelling Longwave Radiation
- units: W m-2
- standard_name: surface_downwelling_shortwave_flux_in_air
- var_id: rsds
- long_name: Surface Downwelling Shortwave Radiation
- units: K
- standard_name: surface_temperature
- var_id: ts
- long_name: Surface Temperature
- var_id: hfls
- units: W m-2
- standard_name: surface_upward_latent_heat_flux
- long_name: Surface Upward Latent Heat Flux
- units: W m-2
- standard_name: surface_upward_sensible_heat_flux
- var_id: hfss
- long_name: Surface Upward Sensible Heat Flux
- units: W m-2
- long_name: Surface Upwelling Shortwave Radiation
- standard_name: surface_upwelling_shortwave_flux_in_air
- var_id: rsus
- units: W m-2
- standard_name: toa_incoming_shortwave_flux
- var_id: rsdt
- long_name: TOA Incident Shortwave Radiation
- var_id: rlutcs
- units: W m-2
- standard_name: toa_outgoing_longwave_flux_assuming_clear_sky
- long_name: TOA Outgoing Clear-Sky Longwave Radiation
- var_id: rsutcs
- units: W m-2
- standard_name: toa_outgoing_shortwave_flux_assuming_clear_sky
- long_name: TOA Outgoing Clear-Sky Shortwave Radiation
- var_id: rlut
- units: W m-2
- standard_name: toa_outgoing_longwave_flux
- long_name: TOA Outgoing Longwave Radiation
- var_id: rsut
- units: W m-2
- standard_name: toa_outgoing_shortwave_flux
- long_name: TOA Outgoing Shortwave Radiation
- units: %
- standard_name: cloud_area_fraction
- var_id: clt
- long_name: Total Cloud Cover Percentage
- units: kg m-2 s-1
- long_name: Total Emission Rate of Dust
- var_id: emidust
- standard_name: tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_particles_due_to_emission
- units: kg m-2 s-1
- long_name: Total Emission Rate of NOx
- standard_name: tendency_of_atmosphere_mass_content_of_nox_expressed_as_nitrogen_due_to_emission
- var_id: eminox
- units: kg kg-1
- var_id: mmroa
- long_name: Total Organic Aerosol Mass Mixing Ratio
- standard_name: mass_fraction_of_particulate_organic_matter_dry_aerosol_particles_in_air
- units: kg m-2 s-1
- long_name: Wet Deposition Rate of Dust
- var_id: wetdust
- standard_name: minus_tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_particles_due_to_wet_deposition
- units: m
- var_id: lev_bnds
- standard_name: atmosphere_hybrid_height_coordinate
- units: m
- standard_name: height
- var_id: height
- long_name: height
- units: m
- var_id: lev
- long_name: hybrid height coordinate
- standard_name: atmosphere_hybrid_height_coordinate
- var_id: lat_bnds
- var_id: lev_bnds
- var_id: lon_bnds
- var_id: plev_bnds
- units: Pa
- standard_name: air_pressure
- long_name: pressure
- var_id: plev
- var_id: time_bnds
- var_id: b
- long_name: vertical coordinate formula term: b
- long_name: vertical coordinate formula term: b(k)
- var_id: b
- long_name: vertical coordinate formula term: b(k+1/2)
- var_id: b_bnds
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: lat
- long_name: Latitude
- units: degrees_east
- standard_name: longitude
- var_id: lon
- long_name: Longitude
- long_name: time
- standard_name: time
- var_id: time
- units: days
Temporal Range
1851-01-01T00:00:00
1880-12-31T00:00:00
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |