Cited by 144Climate variability and modelsMeteorological Phenomena and SimulationsClimate Change Policy and Economics

Climate projections: Past performance no guarantee of future skill?

Reifen, C., Toumi, R.·2009·Geophysical Research Letters

Abstract

The principle of selecting climate models based on their agreement with observations has been tested for surface temperature using 17 of the IPCC AR4 models. Those models simulating global mean, Siberian and European 20th Century surface temperature with a lower error than the total ensemble for one period on average do not do so for a subsequent period. Error in the ensemble mean decreases systematically with ensemble size, N, and for a random selection as approximately 1/Nα, where α lies between 0.6 and 1. This is larger than the exponent of a random sample (α = 0.5) and appears to be an indicator of systematic bias in the model simulations. There is no evidence that any subset of models delivers significant improvement in prediction accuracy compared to the total ensemble.

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Crossref · 10.1029/2009gl038082

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  • Model skill persisted only slightly over the past century.

    “and only a slight persistence of model skill during the past century (Reifen and Toumi 2009).”

    From Risks of Model Weighting in Multimodel Climate Projections (2010) · cites this paper as Reifen and Toumi 2009

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Authors
Reifen, C., & Toumi, R.
Affiliations
Imperial College London (GB)
Venue
Geophysical Research Letters
Published
2009-07
Volume
36
Issue
13
ISSN
  • 0094-8276 (ISSN-L)
  • 1944-8007
OpenAlex
W2064730812
Cited by
144
References
12
Citations by year
2026: 1 · 2025: 4 · 2024: 7 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 9 · 2019: 6 · 2018: 11 · 2017: 10 · 2016: 11 · 2015: 14 · 2014: 8 · 2013: 11 · 2012: 12
FWCI
10.85
Type
journal article
Language
en
Open access
closed
Locations
Geophysical Research Letters (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Climate Change Policy and Economics
Keywords
climate model selection, model skill, surface temperature, ensemble size, model bias, climate change projections

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