RT Journal Article
T1 Combined Effects of the North Atlantic Oscillation and the Arctic Oscillation on Sea Surface Temperature in the Alborán Sea
A1 Báez Barrionuevo, José Carlos
A1 Gimeno, L.
A1 Gómez-Gesteira, M.
A1 Ferri-Yáñez, F.
A1 Real-Giménez, Raimundo
K1 Temperatura - Cambios globales
K1 Mares y océanos - Temperatura - Alborán
AB We explored the possible effects of the North Atlantic Oscillation (NAO) and Arctic Oscillation (AO) on interannual seasurface temperature (SST) variations in the Albora´n Sea, both separately and combined. The probability of observing meanannual SST values higher than average was related to NAO and AO values of the previous year. The effect of NAO on SSTwas negative, while that of AO was positive. The pure effects of NAO and AO on SST are obscuring each other, due to thepositive correlation between them. When decomposing SST, NAO and AO in seasonal values, we found that variation inmean annual SST and mean winter SST was significantly related to the mean autumn NAO of the previous year, while meansummer SST was related to mean autumn AO of the previous year. The one year delay in the effect of the NAO and AO onthe SST could be partially related to the amount of accumulated snow, as we found a significant correlation between thetotal snow in the North Albora´n watershed for a year with the annual average SST of the subsequent year. A positive AOimplies a colder atmosphere in the Polar Regions, which could favour occasional cold waves over the Iberian Peninsulawhich, when coupled with precipitations favoured by a negative NAO, may result in snow precipitation. This snow may beaccumulated in the high peaks and melt down in spring-summer of the following year, which consequently increases therunoff of freshwater to the sea, which in turn causes a diminution of sea surface salinity and density, and blocks the localupwelling of colder water, resulting in a higher SST.
PB San Francisco, CA : Public Library of Science
SN 1932-6203
YR 2013
FD 2013-04-18
LK http://hdl.handle.net/10630/7034
UL http://hdl.handle.net/10630/7034
LA eng
NO Baéz JC, Gimeno L, Gómez-Gesteira M, Ferri-Yáñez F, Real R (2013) Combined Effects of the North Atlantic Oscillation and the Arctic Oscillation on Sea Surface Temperature in the Albora´n Sea. PLoS ONE 8(4): e62201. doi:10.1371/journal.pone.0062201
NO CGL2009-11316 (Ministerio de Ciencia e Innovación, Spain, and FEDER)
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026