Trends in the climate of the North Atlantic Ocean over the past century

Nature ◽  
1976 ◽  
Vol 263 (5578) ◽  
pp. 576-577 ◽  
Author(s):  
J. M. COLEBROOK
2019 ◽  
Vol 70 (8) ◽  
pp. 1150 ◽  
Author(s):  
Laura Rodríguez-Díaz ◽  
Inés Álvarez ◽  
Moncho Gómez-Gesteira ◽  
Fran Santos

Lagrangian trajectories of passive particles were simulated using velocity fields provided by the Simple Ocean Data Assimilation model to determine changes in their probability of crossing the North Atlantic Ocean during the period 1899–2010. Particles were released in the Straits of Florida, where the Gulf Stream is the main driving force. The results showed that eddy kinetic energy increased along the Gulf Stream path, which enhanced connectivity across the Atlantic. The time for water parcels (passive tracers) to cross the North Atlantic Ocean has shortened in the past century, with a minimum crossing period of 6–7 months and a decreasing trend ranging from –0.15 to –0.40 months per decade.


2006 ◽  
Vol 21 (4) ◽  
Author(s):  
Constancia López-Martínez ◽  
Joan O. Grimalt ◽  
Babette Hoogakker ◽  
Jens Gruetzner ◽  
Maryline J. Vautravers ◽  
...  

Author(s):  
Greg J Holland ◽  
Peter J Webster

We find that long-period variations in tropical cyclone and hurricane frequency over the past century in the North Atlantic Ocean have occurred as three relatively stable regimes separated by sharp transitions. Each regime has seen 50% more cyclones and hurricanes than the previous regime and is associated with a distinct range of sea surface temperatures (SSTs) in the eastern Atlantic Ocean. Overall, there appears to have been a substantial 100-year trend leading to related increases of over 0.7°C in SST and over 100% in tropical cyclone and hurricane numbers. It is concluded that the overall trend in SSTs, and tropical cyclone and hurricane numbers is substantially influenced by greenhouse warming. Superimposed on the evolving tropical cyclone and hurricane climatology is a completely independent oscillation manifested in the proportions of tropical cyclones that become major and minor hurricanes. This characteristic has no distinguishable net trend and appears to be associated with concomitant variations in the proportion of equatorial and higher latitude hurricane developments, perhaps arising from internal oscillations of the climate system. The period of enhanced major hurricane activity during 1945–1964 is consistent with a peak period in major hurricane proportions.


1999 ◽  
Vol 14 (5) ◽  
pp. 626-638 ◽  
Author(s):  
Martine Paterne ◽  
Nejib Kallel ◽  
Laurent Labeyrie ◽  
Maryline Vautravers ◽  
Jean-Claude Duplessy ◽  
...  

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