Variations of NAO based on long time-series, data reconstructions and simulations of the last 500 years

Spangehl, T.; Raible, C. C. (2009). Variations of NAO based on long time-series, data reconstructions and simulations of the last 500 years. Promet - meteorologische Fortbildung, 34(3/4), pp. 101-107. Offenbach: Deutscher Wetterdienst DWD

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Climate reconstructions and simulations with general atmosphere-ocean circulation models are the basis to investigate the low-frequency behaviour of the North Atlantic Oscillation (NAO). Utilizing model simulations, a large part of the low-frequency variability can be attributed to internal atmosphere-ocean interaction. Moreover, simulations suggest that external forcing functions play a role, e.g., during the Little Ice Age where variations of the solar irradiance and volcanic eruptions are important. Periods with reduced solar irradiance, like the Maunder Minimum, are related to a negative phase of the NAO. However, the anthropogenic increase of greenhouse gases since the industrialization is often discussed to be connected to a shift of the NAO to a more positive phase.

Item Type:	Journal Article (Original Article)
Division/Institute:	08 Faculty of Science > Physics Institute > Climate and Environmental Physics
UniBE Contributor:	Raible, Christoph
ISSN:	0340-4552
Publisher:	Deutscher Wetterdienst DWD
Language:	German
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 15:23
Last Modified:	05 Dec 2022 14:26
URI:	https://boris.unibe.ch/id/eprint/37529 (FactScience: 208820)