FN Archimer Export Format
PT J
TI Wave climate in the Arctic 1992-2014: seasonality and trends
BT 
AF STOPA, Justin
   ARDHUIN, Fabrice
   GIRARD-ARDHUIN, Fanny
AS 1:1,2;2:3;3:1;
FF 1:PDG-ODE-LOPS-SIAM;2:;3:PDG-ODE-LOPS-SIAM;
C1 Univ Brest, IFREMER, LOPS, CNRS,IRD,IUEM, F-29280 Brest, France.
   Ecole Cent Nantes, F-44321 Nantes, France.
C2 IFREMER, FRANCE
   ECOLE CENT NANTES, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-ODE-LOPS-SIAM
UM LOPS
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
IF 4.803
TC 111
UR https://archimer.ifremer.fr/doc/00347/45816/45461.pdf
LA English
DT Article
AB Over the past decade, the diminishing Arctic sea ice has impacted the wave field, which depends on the ice-free ocean and wind. This study characterizes the wave climate in the Arctic spanning 1992–2014 from a merged altimeter data set and a wave hindcast that uses CFSR winds and ice concentrations from satellites as input. The model performs well, verified by the altimeters, and is relatively consistent for climate studies. The wave seasonality and extremes are linked to the ice coverage, wind strength, and wind direction, creating distinct features in the wind seas and swells. The altimeters and model show that the reduction of sea ice coverage causes increasing wave heights instead of the wind. However, trends are convoluted by interannual climate oscillations like the North Atlantic Oscillation (NAO) and Pacific Decadal Oscillation. In the Nordic Greenland Sea the NAO influences the decreasing wind speeds and wave heights. Swells are becoming more prevalent and wind-sea steepness is declining. The satellite data show the sea ice minimum occurs later in fall when the wind speeds increase. This creates more favorable conditions for wave development. Therefore we expect the ice freeze-up in fall to be the most critical season in the Arctic and small changes in ice cover, wind speeds, and wave heights can have large impacts to the evolution of the sea ice throughout the year. It is inconclusive how important wave–ice processes are within the climate system, but selected events suggest the importance of waves within the marginal ice zone.
PY 2016
SO Cryosphere
SN 1994-0416
PU Copernicus Gesellschaft Mbh
VL 10
IS 4
UT 000381218000008
BP 1605
EP 1629
DI 10.5194/tc-10-1605-2016
ID 45816
ER

EF