Open AccessMultitemporal climate variability over the Atlantic Ocean and Eurasia: linkages with Mediterranean and West African climate
Author(s) -
Paz Shlomit,
Tourre Yves M.,
Brolley Justin
Publication year - 2008
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl.181
Subject(s) - atlantic multidecadal oscillation , climatology , mediterranean climate , thermohaline circulation , north atlantic oscillation , el niño southern oscillation , polar vortex , climate change , geography , oceanography , environmental science , stratosphere , geology , archaeology
More linkages between the Atlantic multidecadal oscillation (AMO, and thermohaline circulation), the Polar vortex oscillation (PVO, and vorticity intrusion), the North Africa–West Asia index (NAWA, and NA–WA poles) and Sahelian rainfall, are investigated. Significant positive correlations are found between winter/spring AMO and spring NA pole. Significant positive (negative) correlations are found between winter PVO and NAWA (WA pole). NAWA is shown being modulated by winter AMO to the west, and winter PVO over Eurasia to the east. Winter AMO and PVO can thus be used operationally by decision makers as early predictors of Mediterranean climate and Sahelian rainfall during summer. Copyright © 2008 Royal Meteorological Society