scholarly journals Influence of Arctic Oscillation towards the Northern Hemisphere Surface Temperature Variability under the Global Warming Scenario

2007 ◽  
Vol 85 (6) ◽  
pp. 847-859 ◽  
Author(s):  
Masatake E. HORI ◽  
Daisuke NOHARA ◽  
Hiroshi L. TANAKA
Keyword(s):  
Global Warming ◽  
Surface Temperature ◽  
Northern Hemisphere ◽  
Arctic Oscillation ◽  
Temperature Variability ◽  
Warming Scenario ◽  
Hemisphere Surface ◽  
Global Warming Scenario

Physics of Changes in Synoptic Midlatitude Temperature Variability

2015 ◽  
Vol 28 (6) ◽  
pp. 2312-2331 ◽  
Author(s):  
Tapio Schneider ◽  
Tobias Bischoff ◽  
Hanna Płotka
Keyword(s):  
Global Warming ◽  
Surface Temperature ◽  
Northern Hemisphere ◽  
Potential Temperature ◽  
Temperature Variability ◽  
Temperature Gradients ◽  
Arctic Amplification ◽  
Near Surface ◽  
Temperature Variations ◽  
Temperature Variance

Abstract This paper examines the physical processes controlling how synoptic midlatitude temperature variability near the surface changes with climate. Because synoptic temperature variability is primarily generated by advection, it can be related to mean potential temperature gradients and mixing lengths near the surface. Scaling arguments show that the reduction of meridional potential temperature gradients that accompanies polar amplification of global warming leads to a reduction of the synoptic temperature variance near the surface. This is confirmed in simulations of a wide range of climates with an idealized GCM. In comprehensive climate simulations (CMIP5), Arctic amplification of global warming similarly entails a large-scale reduction of the near-surface temperature variance in Northern Hemisphere midlatitudes, especially in winter. The probability density functions of synoptic near-surface temperature variations in midlatitudes are statistically indistinguishable from Gaussian, both in reanalysis data and in a range of climates simulated with idealized and comprehensive GCMs. This indicates that changes in mean values and variances suffice to account for changes even in extreme synoptic temperature variations. Taken together, the results indicate that Arctic amplification of global warming leads to even less frequent cold outbreaks in Northern Hemisphere winter than a shift toward a warmer mean climate implies by itself.

scholarly journals Projection of Extreme Waves under a Global Warming Scenario

2010 ◽  
Vol 66 (1) ◽  
pp. 1231-1235 ◽  
Author(s):  
Nobuhito MORI ◽  
Tomoya SHIMURA ◽  
Tomohiro YASUDA ◽  
Hajime MASE
Keyword(s):  
Global Warming ◽  
Extreme Waves ◽  
Warming Scenario ◽  
Global Warming Scenario

Optimized Flood Control in the Columbia River Basin for a Global Warming Scenario

2006 ◽  
Author(s):  
Se-Yeun Lee ◽  
Alan F. Hamlet ◽  
Carolyn J. Fitzgerald ◽  
Stephen J. Burges ◽  
Dennis P. Lettenmaier
Keyword(s):  
Global Warming ◽  
River Basin ◽  
Flood Control ◽  
Columbia River ◽  
Columbia River Basin ◽  
Warming Scenario ◽  
Global Warming Scenario
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