Dataset
IPCC AR5 Seasonal temperature and precipitation extremes in IPCC regions for CMIP5
Abstract
Projected regional average change in seasonal and annual temperature and precipitation extremes for the IPCC SREX regions for CMIP5. The data were produced in 2013 by the Intergovernmental Panel on Climate Change (IPCC) Working Group II (WGII) Chapter 14 supplementary material (SM) author team for the IPCC Fifth Assessment Report (AR5).
Regional average seasonal and annual temperature and precipitation extremes for the periods 2016-2035, 2046-2065 and 2081-2100 for CMIP5 General Circulation Model (GCM) projections are compared to a baseline of 1986-2005 from each model's historical simulation. The temperature and precipitation data are based on the difference between the projected periods and the historical baseline for which the 25th, 50th and 75th percentiles, and the lowest and highest responses among the 32 models which are expressed for temperature as degrees Celsius change and for precipitation as a per cent change. The temperature responses are averaged over the boreal winter and summer seasons; December, January, February (DJF) and June, July and August (JJA) respectively. The precipitation responses are averaged over half year periods, boreal winter (BW); October, November, December, January, February and March (ONDJFM) and boreal summer (BS); April, May, June, July, August and September (AMJJAS).
Regional averages are based on the SREX regions defined by the IPCC Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation (IPCC, 2012: also known as "SREX"). Added to the SREX regions are additional regions containing the two polar regions, the Caribbean, Indian Ocean and Pacific Island States. The data are further categorised by the land and sea mask for each SREX region.
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: 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: |
Data from Table 14.SM.1 of the IPCC 5th Assessment Report, Working Group 1, Chapter 14. Errata: the table is missing a row of data and there are errors in the RCP2.6 Caribbean annual precipitation figures (WG1AR5_Errata_26092014.pdf, 14SM-18 and 14SM-22). |
| Data Quality: |
See dataset associated documentation.
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| File Format: |
csv and xls
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Related Documents
Process overview
| Title | Temperature and precipitation projections by the CMIP5 global models averaged over SREX regions |
| Abstract | Chapter 14 of The IPCC 5th Assessment Report, WG1 includes, in the supplementary material of chapter 14 a table of extremes (Table 14.SM1). The underlying data are provided in spreadsheet format. The tabulated data are presented in two spreadsheet formats. The first of these has a row corresponding to each row in AR5 table 14.1: each row contains 10 data values, 5 for temperature and 5 for precipitation. A 2nd file is arranged with only 2 data values on each row (one temperature and one precipitation value), with a different row for each statistic (median, 25th percentile etc). This 2nd approach is easier to read in to a R program for plotting. A simple demonstration script, which produces illustration 2 below, is provided in /software/ar5/extremes/extremesBoxPlot.r. The 26 SREX regions are: Alaska/NW Canada (ALA), Eastern Canada/Greenland/Iceland (CGI), Western North America (WNA), Central North America (CNA), Eastern North America (ENA), Central America/Mexico (CAM), Amazon (AMZ), NE Brazil (NEB), West Coast South America (WSA), South- Eastern South America (SSA), Northern Europe (NEU), Central Europe (CEU), Southern Europe/the Mediterranean (MED), Sahara (SAH), Western Africa (WAF), Eastern Africa (EAF), Southern Africa (SAF), Northern Asia (NAS), Western Asia (WAS), Central Asia (CAS), Tibetan Plateau (TIB), Eastern Asia (EAS), Southern Asia (SAS), Southeast Asia (SEA), Northern Australia (NAS) and Southern Australia/New Zealand (SAU). The non-SREX reference regions are: Antarctica (ANT), Arctic (ARC), Caribbean (CAR), Western Indian Ocean (WIO), Northern Tropical Pacific (NTP), Equatorial Tropical Pacific (ETP) and Southern Tropical Pacific (STP). Errata: the table is missing a row of data and there are errors in the RCP2.6 Caribbean annual precipitation figures (WG1AR5_Errata_26092014.pdf, 14SM-18 and 14SM-22). |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
No variables found.
Temporal Range
2016-01-01T00:00:00
2100-12-31T23:59:59
Geographic Extent
90.0000° |
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-180.0000° |
180.0000° |
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-90.0000° |