scholarly journals The impact of decadal-scale Indian Ocean sea surface temperature anomalies on Sahelian rainfall and the North Atlantic Oscillation

2003 ◽  
Vol 30 (22) ◽  
Author(s):  
J. Bader ◽  
M. Latif
Keyword(s):  
Indian Ocean ◽  
North Atlantic ◽  
Sea Surface ◽  
The North ◽  
Decadal Scale ◽  
Sahelian Rainfall ◽  
Sea Surface Temperature Anomalies ◽  
The North Atlantic ◽  
The North Atlantic Oscillation ◽  
The Impact

scholarly journals The Linear Sensitivity of the North Atlantic Oscillation and Eddy-Driven Jet to SSTs

2019 ◽  
Vol 32 (19) ◽  
pp. 6491-6511 ◽  
Author(s):  
Hugh S. Baker ◽  
Tim Woollings ◽  
Chris E. Forest ◽  
Myles R. Allen
Keyword(s):  
Indian Ocean ◽  
North Atlantic Oscillation ◽  
North Atlantic ◽  
High Sensitivity ◽  
Internal Variability ◽  
The North ◽  
The Indian Ocean ◽  
The North Atlantic ◽  
The North Atlantic Oscillation ◽  
The Impact

Abstract The North Atlantic Oscillation (NAO) and eddy-driven jet contain a forced component arising from sea surface temperature (SST) variations. Due to large amounts of internal variability, it is not trivial to determine where and to what extent SSTs force the NAO and jet. A linear statistical–dynamic method is employed with a large climate ensemble to compute the sensitivities of the winter and summer NAO and jet speed and latitude to the SSTs. Key regions of sensitivity are identified in the Indian and Pacific basins, and the North Atlantic tripole. Using the sensitivity maps and a long observational SST dataset, skillful reconstructions of the NAO and jet time series are made. The ability to skillfully forecast both the winter and summer NAO using only SST anomalies is also demonstrated. The linear approach used here allows precise attribution of model forecast signals to SSTs in particular regions. Skill comes from the Atlantic and Pacific basins on short lead times, while the Indian Ocean SSTs may contribute to the longer-term NAO trend. However, despite the region of high sensitivity in the Indian Ocean, SSTs here do not provide significant skill on interannual time scales, which highlights the limitations of the imposed SST approach. Given the impact of the NAO and jet on Northern Hemisphere weather and climate, these results provide useful information that could be used for improved attribution and forecasting.

scholarly journals The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of Gibraltar

2011 ◽  
Vol 75 (3) ◽  
pp. 571-575 ◽  
Author(s):  
José C. Báez ◽  
Juan J. Bellido ◽  
Francisco Ferri-Yáñez ◽  
Juan J. Castillo ◽  
Juan J. Martín ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
North Atlantic Oscillation ◽  
North Atlantic ◽  
Sea Surface ◽  
Strait Of Gibraltar ◽  
The North ◽  
The North Atlantic ◽  
The North Atlantic Oscillation
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