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Abstract
Episodic explosive volcanic eruptions are a natural part of the climate system but are often omitted from atmosphere-ocean general circulation model (AOGCM) preindustrial spin-up and control experiments. This omission imposes a negative bias on ocean heat uptake in simulations of the historical period. In models of a range of complexity, we find that global-mean sea level rise due to thermal expansion during the last approximate to 150years is consequently underestimated by 530mm, which is a substantial proportion of the model mean of 50mm in Coupled Model Intercomparison Project Phase 3 AOGCMs with anthropogenic forcing only, and is therefore important in accounting for 20th century sea level rise. We test and recommend a procedure for removing the bias.
Original language | English |
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Pages (from-to) | 1600-1604 |
Number of pages | 5 |
Journal | Geophysical Research Letters |
Volume | 40 |
Issue number | 8 |
DOIs | |
Publication status | Published - 28 Apr 2013 |
Keywords
- volcano
- ocean heat content
- climate change
- sea level rise
- CARBON-CYCLE MODELS
- ATMOSPHERE-OCEAN
- SIMPLER MODEL
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Dive into the research topics of 'Climate models without preindustrial volcanic forcing underestimate historical ocean thermal expansion'. Together they form a unique fingerprint.Projects
- 1 Finished
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LastMill: Causes of change in European mean and extreme climate over the past 500 years
Hegerl, G., Schurer, A. & Tett, S.
1/10/10 → 20/12/13
Project: Research