Dataset
Poles Apart: Why has Antarctic sea ice increased and why don't coupled climate models reproduce observations, climate model data
Abstract
Data produced in support of the NERC project Poles Apart (2014 - 2017) that investigated the atmospheric drivers of changes in surface wind forcing using the UK Chemistry and Aerosols (UKCA) model.
Ten HadGEM3 model simulations were undertaken. Monthly model data was taken from the final 30 years of each simulation and a number of variables of interest, e.g. temperature and precipitation were extracted and analysed.
The temporal range for the perturbed simulations is 1980-2013, and the control simulations are valid between 1841-1900.
See the detailed experiment documentation for the Unified Model experiment ids and their corresponding description (these have been used to organise the data).
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: |
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): http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
UK Chemistry and Aerosol (UKCA) climate model data extracted using Convsh and converted to NetCDF. The data were provided by the Poles Apart project from the British Antarctic Survey and were passed to CEDA for archival. |
| Data Quality: |
The data have not been quality controlled by CEDA.
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| File Format: |
The data are NetCDF formatted.
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Related Documents
Process overview
| Title | Poles Apart computation |
| Abstract | The UK Met Office third generation Hadley Centre Global Environment Model (HadGEM3) run in atmosphere only mode (prescribed sea ice and sea surface temperatures) coupled to the United Kingdom Chemistry & Aerosols (UKCA) model. HadGEM3 was run using the GA4.0 and GL4.0 physics configurations (See Walters et al., 2014, Geo. Mod. Dev) |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
- units: W m-2
- var_id: field259
- long_name: Atmospheric energy correction (from UM 3.3)
- units: W m-2
- var_id: field200
- standard_name: toa_incoming_shortwave_flux
- long_name: Downward solar
- units: m
- var_id: ht
- standard_name: geopotential_height
- long_name: Height
- units: level
- long_name: Hybrid height
- var_id: hybrid_ht
- units: W m-2
- var_id: olr
- standard_name: toa_outgoing_longwave_flux
- long_name: IR up
- units: W m-2
- var_id: lh
- long_name: Latent heat flux
- long_name: Layer liquid cloud amount in layers
- var_id: field1425
- units:
- units: kg kg-1
- long_name: Mass Mixing Ratio
- var_id: mmr
- units: level
- var_id: msl
- long_name: Mean sea level
- units: Pa s-1
- var_id: omega
- standard_name: lagrangian_tendency_of_air_pressure
- long_name: Omega (= dp/dt)
- units: m2 m-3
- long_name: Particle Area Density
- var_id: pad
- units: mbar
- long_name: Pressure
- var_id: p
- standard_name: air_pressure
- standard_name: relative_humidity
- long_name: Relative humidity
- var_id: rh
- units:
- units: W m-2
- var_id: sh
- standard_name: surface_upward_sensible_heat_flux
- long_name: Sensible heat flux
- units: kg m-2 s-1
- var_id: snow
- standard_name: snowfall_flux
- long_name: Snowfall rate
- units: m s-1
- standard_name: northward_wind
- var_id: v
- long_name: Southerly component of wind v
- units: kg kg-1
- long_name: Specific humidity q
- var_id: q
- standard_name: specific_humidity
- units: level
- var_id: surface
- long_name: Surface
- units: K
- long_name: Temperature T
- var_id: temp
- standard_name: tropopause_air_temperature
- units: level
- var_id: toa
- long_name: Top of atmosphere
- long_name: Total precipitation rate
- units: kg m-2 s-1
- var_id: precip
- standard_name: precipitation_flux
- units: kg m-2 s-1
- var_id: rain
- standard_name: rainfall_flux
- long_name: Total rainfall rate
- standard_name: upward_air_velocity
- var_id: unspecified
- long_name: Unspecified
- units:
- units: W m-2
- var_id: field201
- long_name: Upward solar
- units: m s-1
- standard_name: eastward_wind
- var_id: u
- long_name: Westerly component of wind u
- units: level
- var_id: pseudo
- long_name: pseudo
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- long_name: latitude
- var_id: lat
- units: degrees_east
- standard_name: longitude
- long_name: longitude
- var_id: lon
- standard_name: time
- var_id: t
- long_name: t
Temporal Range
1841-01-01T00:01:15
2013-12-31T23:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |