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Detailed Reference Information |
Pozo-Vázquez, D., Tovar-Pescador, J., Gámiz-Fortis, S.R., Esteban-Parra, M.J. and Castro-Díez, Y. (2004). NAO and solar radiation variability in the European North Atlantic region. Geophysical Research Letters 31: doi: 10.1029/2003GL018502. issn: 0094-8276. |
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We explore the relationship between the NAO and the solar radiation spatio-temporal variability in the European North Atlantic area during winter. Measured monthly sums of sunshine duration and short-wave downward solar flux reanalysis data have been used. Correlation analysis between the NAO index and the measured sunshine duration shows a dipolar pattern, with maximum positive values (+0.75) over the Iberian Peninsula, and maximum negative values (-0.71) over Norway. Reanalysis results confirm these findings. Composite analysis shows, for northern Europe, negative anomalies (-10% to -20%) associated with NAO > 1 and positive anomalies (10% to 20%) associated with NAO < -1; while for southern Europe anomalies are, respectively, 10% to 20% and -10% to -20%. A stronger influence is found during the NAO negative phase; particularly, the northern British Isles, Norway and the Iberian Peninsula present a significant non-linear response, with higher anomalies (10% to 20%) during this negative phase. |
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Abstract |
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Keywords
Meteorology and Atmospheric Dynamics, Climatology, Meteorology and Atmospheric Dynamics, Radiative processes |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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