Climate dynamics

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The SPARC Reanalysis Intercomparison Project (S-RIP)

AGU Fall Meeting Abstracts (2014)

Authors:

Masatomo Fujiwara, D Jackson, D Tan, C Long, M Hegglin, S Davis, T Birner, B Monge-Sanz, E Gerber, Y Zyulyaeva, others

The climate response to the 11-yr solar cycle in the CMIP5 historical simulations

EGU General Assembly Conference Abstracts 16 (2014)

Authors:

Stergios Misios, Daniel Mitchell, Kleareti Tourpali, Lesley Gray, Katja Matthes

The influence of solar variability past, present and future, on North Atlantic climate.

EGU General Assembly Conference Abstracts 16 (2014)

Authors:

Nick Dunstone, Adam Scaife, Sarah Ineson, Lesley Gray, Jeff Knight, Mike Lockwood, Amanda Maycock

What do the latest reanalyses and models tell us about solar influences on climate?

EGU General Assembly Conference Abstracts 16 (2014)

Authors:

Dann Mitchell, Stergios Misios, Lesley Gray, Kleareti Tourpali, Katja Matthes

A lagged response to the 11 year solar cycle in observed winter Atlantic/European weather patterns

Journal of Geophysical Research Atmospheres 118:24 (2013) 13-420

Authors:

LJ Gray, AA Scaife, DM Mitchell, S Osprey, S Ineson, S Hardiman, N Butchart, J Knight, R Sutton, K Kodera

Abstract:

The surface response to 11 year solar cycle variations is investigated by analyzing the long-term mean sea level pressure and sea surface temperature observations for the period 1870-2010. The analysis reveals a statistically significant 11 year solar signal over Europe, and the North Atlantic provided that the data are lagged by a few years. The delayed signal resembles the positive phase of the North Atlantic Oscillation (NAO) following a solar maximum. The corresponding sea surface temperature response is consistent with this. A similar analysis is performed on long-term climate simulations from a coupled ocean-atmosphere version of the Hadley Centre model that has an extended upper lid so that influences of solar variability via the stratosphere are well resolved. The model reproduces the positive NAO signal over the Atlantic/European sector, but the lag of the surface response is not well reproduced. Possible mechanisms for the lagged nature of the observed response are discussed. Key Points 11-year solar signal detected over N. Atlantic/Europe Signal is evident if data are lagged by ~3 years HadGEM climate model simulates signal but not the lag ©2013. The Authors.
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