Journal ArticleDOI
Persistent Positive North Atlantic Oscillation Mode Dominated the Medieval Climate Anomaly
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TLDR
A 947-year-long multidecadal North Atlantic Oscillation reconstruction is presented and a persistent positive NAO is found during the Medieval Climate Anomaly to indicate a clear shift to weaker NAO conditions into the Little Ice Age (LIA).Abstract:
The Medieval Climate Anomaly (MCA) was the most recent pre-industrial era warm interval of European climate, yet its driving mechanisms remain uncertain. We present here a 947-year-long multidecadal North Atlantic Oscillation (NAO) reconstruction and find a persistent positive NAO during the MCA. Supplementary reconstructions based on climate model results and proxy data indicate a clear shift to weaker NAO conditions into the Little Ice Age (LIA). Globally distributed proxy data suggest that this NAO shift is one aspect of a global MCA-LIA climate transition that probably was coupled to prevailing La Nina-like conditions amplified by an intensified Atlantic meridional overturning circulation during the MCA.read more
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疟原虫var基因转换速率变化导致抗原变异[英]／Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
TL;DR: PfPMP1）与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作�ly.
Journal ArticleDOI
Global Signatures and Dynamical Origins of the Little Ice Age and Medieval Climate Anomaly
Michael E. Mann,Zhihua Zhang,Scott Rutherford,Raymond S. Bradley,Malcolm K. Hughes,Drew Shindell,Caspar M. Ammann,Greg Faluvegi,Fenbiao Ni +8 more
TL;DR: The Medieval period is found to display warmth that matches or exceeds that of the past decade in some regions, but which falls well below recent levels globally, and the Little Ice Age is marked by a tendency for La Niña–like conditions in the tropical Pacific.
Supporting Online Material for Global Signatures and Dynamical Origins of the Little Ice Age and Medieval Climate Anomaly
Journal ArticleDOI
2500 Years of European Climate Variability and Human Susceptibility
Ulf Büntgen,Ulf Büntgen,Willy Tegel,Kurt Nicolussi,Michael McCormick,David Frank,David Frank,Valerie Trouet,Valerie Trouet,Jed O. Kaplan,Franz Herzig,Karl Uwe Heussner,Heinz Wanner,Jürg Luterbacher,Jan Esper +14 more
TL;DR: Reconstruction of tree ring–based reconstructions of central European summer precipitation and temperature variability over the past 2500 years may provide a basis for counteracting the recent political and fiscal reluctance to mitigate projected climate change.
Journal ArticleDOI
Solar influences on climate
Lesley J. Gray,Lesley J. Gray,Juerg Beer,M. Geller,Joanna D. Haigh,Mike Lockwood,Mike Lockwood,Katja Matthes,Ulrich Cubasch,Dominik Fleitmann,Dominik Fleitmann,Giles Harrison,Lon L. Hood,Jürg Luterbacher,Gerald A. Meehl,Drew Shindell,B. van Geel,W. White +17 more
TL;DR: In this paper, the development of this review article has evolved from work carried out by an international team of the International Space Science Institute (ISSI), Bern, Switzerland, and from work performed under the auspices of Scientific Committee on Solar Terrestrial Physics (SCOSTEP) regarding climate and weather of the Sun-Earth System (CAWSES).
References
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疟原虫var基因转换速率变化导致抗原变异[英]／Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
TL;DR: PfPMP1）与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作�ly.
Journal ArticleDOI
Decadal Trends in the North Atlantic Oscillation: Regional Temperatures and Precipitation
TL;DR: An evaluation of the atmospheric moisture budget reveals coherent large-scale changes since 1980 that are linked to recent dry conditions over southern Europe and the Mediterranean, whereas northern Europe and parts of Scandinavia have generally experienced wetter than normal conditions.
Journal ArticleDOI
Causes of Climate Change Over the Past 1000 Years
TL;DR: A 21st-century global warming projection far exceeds the natural variability of the past 1000 years and is greater than the best estimate of global temperature change for the last interglacial.
Journal ArticleDOI
Extension to the North Atlantic oscillation using early instrumental pressure observations from Gibraltar and south-west Iceland
TL;DR: Early instrumental pressure measurements from Gibraltar and the Reykjavik area of Iceland have been used to extend to 1821 the homogeneous pressure series at the two locations In winter the two sites are located close to the centres of action that comprise the North Atlantic Oscillation (NAO) as mentioned in this paper.
Journal ArticleDOI
Low-Frequency Signals in Long Tree-Ring Chronologies for Reconstructing Past Temperature Variability
TL;DR: It is demonstrated that carefully selected tree-ring chronologies from 14 sites in the Northern Hemisphere (NH) extratropics can preserve such coherent large-scale, multicentennial temperature trends if proper methods of analysis are used.
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