Pattern decomposition of the transient climate response

Olivier Geoffroy; David Saint-Martin

doi:10.3402/tellusa.v66.23393

Pattern decomposition of the transient climate response

Tellus

Volume 66 (2014): Issue 1

By: Olivier Geoffroy and David Saint-Martin

Open Access

|Dec 2014

Abstract

A two-pattern decomposition of the mean surface air temperature response to an increase of CO₂ is assessed. This decomposition is based on a two-layer global energy-balance model and the hypothesis of separability in space and time. It is shown that this decomposition allows the regional transient warming of a given atmosphere–ocean general circulation model to be well represented. The pattern decomposition is applied to 16 CMIP5 climate models and each of the two retrieved patterns – the equilibrium pattern and the pattern associated with the deep-ocean heat uptake – is described and discussed.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusa.v66.23393 | Journal eISSN: 3035-9554

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Language: English

Page range: 23393 - 23393

Submitted on: Nov 20, 2013

Accepted on: Feb 6, 2014

Published on: Dec 1, 2014

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

Keywords:

transient regional response,

pattern scaling,

energy balance model,

climate sensitivity,

ocean heat uptake

© 2014 Olivier Geoffroy, David Saint-Martin, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 66 (2014): Issue 1