FN Archimer Export Format
PT J
TI Wind-induced barotropic oscillations around the Saint Pierre and Miquelon archipelago (North-west Atlantic)
BT 
AF Bezaud, Marion
   Lazure, Pascal
   Le Cann, Bernard
AS 1:1;2:1;3:2;
FF 1:PDG-ODE-LOPS-OC;2:PDG-ODE-LOPS-OC;3:;
C1 Ifremer, Laboratoire D'Océanographie Physique et Spatiale (LOPS), IUEM, Brest
   CNRS, Laboratoire D'Océanographie Physique et Spatiale (LOPS), IUEM, Brest
C2 IFREMER, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-ODE-LOPS-OC
UM LOPS
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
IF 2.391
TC 4
UR https://archimer.ifremer.fr/doc/00606/71803/70291.pdf
LA English
DT Article
DE ;Barotropic modelling;Wind induced oscillations;Continental shelf wave;Saint Pierre and Miquelon archipelago;Newfoundland
AB We investigate the nearly barotropic oscillations recently observed around the Saint Pierre and Miquelon (SPM) archipelago. They were recorded by two ADCPs at about 30 m depth during winter and spring 2014. These oscillations were the dominant signal on the currents with a period of 2 to 4 days. Our analysis shows that these oscillations were triggered by the wind. To investigate these oscillations, a 2D numerical model was implemented at a regional scale. The results from a realistic simulation confirmed the impact of wind forcing on ocean dynamics in the region. They also showed amplification of these oscillations around SPM, particularly in the north-west of the archipelago and near Burin Peninsula. Analyses suggested the influence of continental shelf wave dynamics at a ‘regional’ scale. This regional wave then triggers a ‘local’ scale continental shelf wave propagating anticyclonically around SPM in ∼2 days. Schematic modelling simulations with periodic wind stress forcing and relaxation after a gust of wind show a strong current response in this region with a wind stress periodicity centred around 2 days, which is attributed to resonance in the SPM area. 
PY 2020
PD APR
SO Continental Shelf Research
SN 0278-4343
PU Elsevier BV
VL 195
UT 000520609700006
DI 10.1016/j.csr.2020.104062
ID 71803
ER

EF