FN Archimer Export Format
PT J
TI Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017
BT 
AF CASTELLE, Bruno
   DODET, Guillaume
   MASSELINK, Gerhard
   SCOTT, Tim
AS 1:1,2;2:3;3:4;4:4;
FF 1:;2:;3:;4:;
C1 CNRS, UMR EPOC, Paris, France.
   Univ Bordeaux, UMR EPOC, Bordeaux, France.
   Inst Univ Europeen Mer UBO, CNRS, LETG Brest Geomer UMR 6554, Plouzane, France.
   Plymouth Univ, Sch Biol & Marine Sci, Coastal Proc Res Grp, Plymouth, Devon, England.
C2 CNRS, FRANCE
   UNIV BORDEAUX, FRANCE
   UBO, FRANCE
   UNIV PLYMOUTH, UK
IF 4.578
TC 74
UR https://archimer.ifremer.fr/doc/00606/71847/70487.pdf
   https://archimer.ifremer.fr/doc/00606/71847/70488.pdf
   https://archimer.ifremer.fr/doc/00606/71847/70489.nc
LA English
DT Article
AB A 69-year (1948-2017) numerical weather and wave hindcast is used to investigate the interannual variability and trend of winter wave height along the west coast of Europe. Results show that the winter-mean wave height, variability, and periodicity all increased significantly in the northeast Atlantic over the last seven decades which primarily correlate with changes in the climate indices North Atlantic Oscillation (NAO) and West Europe Pressure Anomaly (WEPA) affecting atmospheric circulation in the North Atlantic. NAO and WEPA primarily explain the increase in winter-mean wave height and periodicity, respectively, while both WEPA and NAO explain the increase in interannual variability. This increase in trend, variability, and periodicity resulted in more frequent high-energy winters with high NAO and/or WEPA over the last decades. The ability of climate models to predict the winter NAO and WEPA indices a few months ahead will be crucial to anticipate coastal hazards in this region. Plain Language Summary We explore the evolution of winter-mean wave height, variability, and periodicity in the northeast Atlantic over 1949-2017 and the links with the primary climate indices explaining winter wave activity, which is critical from the coastal hazard perspective. The climate indices NAO and WEPA primarily drive the increase in winter-mean wave height and periodicity, respectively, while both WEPA and NAO explain the increase in interannual variability, resulting in more frequent high-energy winters over the last seven decades. Extreme winter-mean wave heights become more frequent as WEPA and NAO positivity and variability increase. Predicting WEPA and NAO a few months ahead is crucial to anticipate coastal hazards, which is of interest for coastal and climate communities. 
PY 2018
PD APR
SO Geophysical Research Letters
SN 0094-8276
PU Amer Geophysical Union
VL 45
IS 8
UT 000435745500031
BP 3586
EP 3596
DI 10.1002/2017GL076884
ID 71847
ER

EF