Version: 0.0.1 | Published: 9 Nov 2021 | Updated: 1297 days ago
CMIP5 20-Year AR5 Climatology Data for the IPCC DDC
Dataset
Summary
Citation:
CITATION INCOMPLETE
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Documentation
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Description:
CMIP5 monthly mean climatology fields matching those given in IPCC WG1 AR5 Annex I: Atlas of Global and Regional Climate Projections in Climate Change 2013, the Fifth Assessment Report (AR5) of the United Nations Intergovernmental Panel on Climate Change (IPCC).
Climatologies have been calculated for global fields of Specific Humidity, Precipitation, Sea Level Pressure, Temperature, Wind and Downwelling Shortwave Radiation (Stoker et. al., 2013). The CMIP5 climatologies, calculated by the Centre for Environmental Data Analysis (CEDA), match those described in table AI.1 in Stoker et al (2013). Twenty-year AR5 climatologies and climatological anomalies are calculated for the averaging periods 2016-2035, 2046-2065, 2081-2100 for the CMIP5 scenario experiments rcp26, rcp45, rcp60 and rcp85. The climatologies are of global scope and are provided on latitude-longitude grids.
Is Part Of:
Model data described in the 2013 IPCC AR5, 20 and 30 year climatologies
Coverage
Spatial Coverage:
Global
Start Date:
01 January 2016
End Date:
31 December 2100
Geographic Bounding Box
Lower Left Latitude:
-90
Lower Left Longitude:
-180
Upper Right Latitude:
90
Upper Right Longitude:
180
Provenance
Source:
Climatologies and climatological anomalies have been calculated at CEDA from
CMIP5 model output. Time Periods: - AR5 averaging periods: 2016-2035, 2046-2065,
2081-2100 Anomaly Specification: All values are taken as anomalies from the
1986->2005 mean (base line values). Output: - Period mean of the monthly mean of
the variables - 12 monthly values per climatology - Climatology is a 2D field -
One climatology per model per scenario per variable per time period - CF
compliant netCDF files Directory Structure: The output directory structure
follows the DRS specification with the root directory being /derived. Each file
has the extended attribute: clim-anom-ref5. This indicates that it is a
climatological mean anomaly (clim-anom) and that the reference period matches
the AR5 reference period (ref5). Method: The algorithm follows the process
below: - For every model: - For every variable (if available): calculate the
1986->2005 climatological (period average) monthly means (baseline) for the
Historical experiment - For every model: - For every variable (if available):
calculate the period average monthly means (baseline) of the last 20 years of
the piControl run - For every model: - For every experiment: - For every time
period: - For every variable (if available): calculate the climatological
monthly mean for this (model, experiment, time period, variable) and subtract
the relevant baseline Code:
https://github.com/cedadev/ipcc_ddc_cmip5_clim_anoms/releases/tag/1.0
Accessibility
Access
Access Service:
This data is publicly available for download. When using these data you must
cite them correctly using the citation given on the Data Catalogue record.
Citable as: Centre for Environmental Data Analysis (2018): CMIP5 20-Year AR5
Climatology Data for the IPCC DDC. Centre for Environmental Data Analysis, date
of citation. https://catalogue.ceda.ac.uk/uuid/d269d748cafe40ec8601125caf5cb2fa
Format:
NetCDF
Language:
en
Usage
Is Referenced By:
Resource Creator:
- Stocker, T.F.
- Qin, D.
Origin
Name:
IPCC Data Catalogue