Indian Ocean Dipole modulated wave climate of eastern Arabian Sea

被引：30

作者：

Anoop, T. R. ^{[1
]}

Kumar, V. Sanil ^{[1
]}

Shanas, P. R. ^{[1
,2
]}

Glejin, J. ^{[1
]}

Amrutha, M. M. ^{[1
]}

机构：

[1] Natl Inst Oceanog, CSIR, Ocean Engn Div, Panaji 403004, Goa, India

[2] King Abdulaziz Univ, Marine Phys Dept, Jeddah, Saudi Arabia

来源：

OCEAN SCIENCE | 2016年 / 12卷 / 02期

关键词：

CENTRAL WEST-COAST; SURFACE WIND; EL-NINO; VARIABILITY; REGIONS; MODEL; PERFORMANCE; LOCATION; DYNAMICS; EVENTS;

D O I：

10.5194/os-12-369-2016

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Intrinsic modes of variability have a significant role in driving the climatic oscillations in the oceanic processes. In this paper, we investigate the influence of an interannual mode of variability, the Indian Ocean Dipole (IOD), on the wave climate of the eastern Arabian Sea (AS). Using measured, modeled and reanalysis wave data and reanalysis wind data, we show that the IOD plays a major role in the variability of wave climate of the study region. Due to the IOD-induced changes in equatorial sea surface temperature and sea level pressure, the winds from the northern AS gets modified and cause inter-annual variability in the wave climate over the eastern AS. The changes in wind field over the AS due to the IOD influence the generation or dissipation of the wave field and hence cause a decrease in northwest short-period waves during positive IOD and an increase during negative IOD.

引用

页码：369 / 378

页数：10

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