North Atlantic climate c.ad 1000: Millennial reflections on the Viking discoveries of Iceland, Greenland and North America

Weather ◽  
2000 ◽  
Vol 55 (2) ◽  
pp. 34-45 ◽  
Author(s):  
A. E. J. Ogilvie ◽  
L. K. Barlow ◽  
A. E. Jennings
Keyword(s):  
North America ◽  
North Atlantic ◽  
North Atlantic Climate

scholarly journals How present aerosol pollution from North America impacts North Atlantic climate

2010 ◽  
Vol 62 (4) ◽  
pp. 579-589 ◽  
Author(s):  
I. FISCHER-BRUNS ◽  
J. FEICHTER ◽  
S. KLOSTER ◽  
A. SCHNEIDEREIT
Keyword(s):  
North America ◽  
North Atlantic ◽  
Aerosol Pollution ◽  
North Atlantic Climate

North Atlantic climate II Addendum

2005 ◽  
Author(s):  
T. Kanamatsu ◽  
R. Stein ◽  
C.A. and Alvarez Zarikian
Keyword(s):  
North Atlantic ◽  
North Atlantic Climate

Notes on Power Operated Controls for Large Aircraft

1945 ◽  
Vol 49 (410) ◽  
pp. 51-54
Author(s):  
A. Gouge
Keyword(s):  
North America ◽  
North Atlantic ◽  
The North ◽  
The World ◽  
The North Atlantic ◽  
Large Aircraft

A Study of the air routes of the world brings out almost at once the fact that some of the most difficult route are also the most attractive. For instance, the North Atlantic route which couples North America with Europe is certainly one of the most difficult in the world, but also by the fact that it couples two of the most densely populated, as well as the most wealthy groups of people in the world, one of the most attractive.

scholarly journals Atmospheric Conditions Associated with Labrador Sea Deep Convection: New Insights from a Case Study of the 2006/07 and 2007/08 Winters

2016 ◽  
Vol 29 (14) ◽  
pp. 5281-5297 ◽  
Author(s):  
Who M. Kim ◽  
Stephen Yeager ◽  
Ping Chang ◽  
Gokhan Danabasoglu
Keyword(s):  
North America ◽  
North Atlantic ◽  
Large Scale ◽  
Initial Conditions ◽  
Deep Convection ◽  
La Niña ◽  
Labrador Sea ◽  
Atmospheric Conditions ◽  
Circulation Anomaly ◽  
La Nina

Abstract Deep convection in the Labrador Sea (LS) resumed in the winter of 2007/08 under a moderately positive North Atlantic Oscillation (NAO) state. This is in sharp contrast with the previous winter with weak convection, despite a similar positive NAO state. This disparity is explored here by analyzing reanalysis data and forced-ocean simulations. It is found that the difference in deep convection is primarily due to differences in large-scale atmospheric conditions that are not accounted for by the conventional NAO definition. Specifically, the 2007/08 winter was characterized by an atmospheric circulation anomaly centered in the western North Atlantic, rather than the eastern North Atlantic that the conventional NAO emphasizes. This anomalous circulation was also accompanied by anomalously cold conditions over northern North America. The controlling influence of these atmospheric conditions on LS deep convection in the 2008 winter is confirmed by sensitivity experiments where surface forcing and/or initial conditions are modified. An extended analysis for the 1949–2009 period shows that about half of the winters with strong heat losses in the LS are associated with such a west-centered circulation anomaly and cold conditions over northern North America. These are found to be accompanied by La Niña–like conditions in the tropical Pacific, suggesting that the atmospheric response to La Niña may have a strong influence on LS deep convection.

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