%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Delcroix, Thierry
%A Radenac, Marie-Hélène
%A Cravatte, Sophie
%A Alory, G.
%A Gourdeau, L.
%A Léger, F.
%A Singh, A.
%A Varillon, David
%T Sea surface temperature and salinity seasonal changes in the western Solomon and Bismarck Seas
%D 2014
%L fdi:010062177
%G ENG
%J Journal of Geophysical Research : Oceans
%@ 2169-9275
%K INTERACTION OCEAN ATMOSPHERE ; TEMPERATURE DE SURFACE ; SALINITE ; COURANT GEOSTROPHIQUE ; ADVECTION MARINE ; UPWELLING ; EL NINO ; PRECIPITATION ; VENT ; ESTUAIRE ; VARIATION MENSUELLE ; VARIATION SAISONNIERE ; VARIATION ANNUELLE
%K PACIFIQUE ; SALOMON ; BISMARCK ; PAPOUASIE NOUVELLE GUINEE
%M ISI:000336213200029
%N 4
%P 2642-2657
%R 10.1002/2013JC009733
%U https://www.documentation.ird.fr/hor/fdi:010062177
%> https://www.documentation.ird.fr/intranet/publi/depot/2014-06-18/010062177.pdf
%V 119
%W Horizon (IRD)
%X We analyze mean and seasonal change of Sea Surface Temperature (SST) and Salinity (SSS) in the Solomon and Bismarck Seas, using 1977-2009 in situ data collected from Voluntary Observing Ships. Covariability of these two variables with surface wind, altimeter-derived and model-derived horizontal currents, precipitation, and Sepik River discharge are examined. SST and SSS show large annual oscillations in the Solomon Sea, with the coldest and saltiest waters occurring in July/August mainly due to horizontal advection. In contrast, they show large semiannual oscillations in the Bismarck Sea. There, the coldest and saltiest waters happen in January/February, when the northwest monsoon winds drive coastal upwelling, and in July/August, when the New Guinea Coastal Current advects cold and high-salinity waters from the Solomon Sea through Vitiaz Strait. The low SSS values observed in April/May, stuck between the January/February and July/August SSS maxima, are further enhanced by the Sepik River discharge annual maximum. A high-resolution model strengthens the conclusions we derive from observations. The impacts of ENSO on SST and SSS are also discussed with, for instance, saltier-than-average and fresher-than-average waters during the 2002-2003 El Nino and 2007-2008 La Nina, respectively.
%$ 032CLIMET ; 021CLIMAT