FN Archimer Export Format
PT J
TI Modulation of sea surface temperature warming in the Bay of Biscay by Loire and Gironde Rivers
BT 
AF COSTOYA, X.
   FERNANDEZ-NOVOA, D.
   DECASTRO, M.
   SANTOS, F.
   LAZURE, Pascal
   GOMEZ-GESTEIRA, M.
AS 1:1;2:1;3:1;4:1,2;5:3;6:1;
FF 1:;2:;3:;4:;5:PDG-ODE-LOPS-OC;6:;
C1 Univ Vigo, Fac Ciencias, Environm PHYs LAB, EPHYSLAB, Orense, Spain.
   Univ Aveiro, Dept Fis, CESAM, P-3800 Aveiro, Portugal.
   IFREMER, Physed DYNECO, Lab Phys HYdrodynam & SEDimentaire, Ctr Bretagne, Plouzane, France.
C2 UNIV VIGO, SPAIN
   UNIV AVEIRO, PORTUGAL
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LOPS-OC
UM LOPS
IN WOS Ifremer jusqu'en 2018
   copubli-europe
TC 18
UR https://archimer.ifremer.fr/doc/00311/42172/41472.pdf
LA English
DT Article
DE ;Loire;Gironde;SST;river plume;warming modulation
AB The influence of Loire and Gironde River discharges over the sea surface temperature (SST) in the eastern Bay of Biscay (0.6º–36.6ºW, 44.2º–47.8ºW) was analyzed by means of two complementary databases (MODIS and OISST1/4). The area influenced by river plume showed a different SST when compared with the adjacent oceanic area for the months when the plume attains its highest extension (December, January, and February). Ocean was observed to warm at a rate of approximately 0.3ºC dec−1 while temperature at the area influenced by the rivers cooled at a rate of −0.15ºC dec−1 over the period 1982–2014. The mere presence of a freshwater layer is able to modulate the warming observed at adjacent ocean locations since the coastal area is isolated from the rest of the Bay. This nearshore strip is the only part of the Bay where changes in SST depend on North Atlantic Oscillation (NAO) but not on North Atlantic SST represented by the Atlantic Multidecadal Oscillation (AMO). These different cooling-warming trends are even more patent over the last years (2002–2014) under atmospheric favorable conditions for plume enhancement. River runoff increased at a rate on the order of 120 m3s−1dec−1 over that period and southwesterly winds, which favor the confinement of the plume, showed a positive and significant trend both in duration and intensity. Thus, the coastal strip has been observed to cool at a rate of −0.5°C dec−1.
PY 2016
PD JAN
SO Journal Of Geophysical Research-oceans
SN 0148-0027
PU Amer Geophysical Union
VL 121
IS 1
UT 000371432200054
BP 966
EP 979
DI 10.1002/2015JC011157
ID 42172
ER

EF