DOI: 10.1002/joc.5907
Scopus记录号: 2-s2.0-85056105236
论文题名: Features of locally and remotely generated surface gravity waves in the inner-shelf region of northwestern Bay of Bengal
作者: Anjali Nair M. ; Sanil Kumar V. ; Amrutha M.M. ; Murty V.S.N.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2019
卷: 39, 期: 3 起始页码: 1644
结束页码: 1664
语种: 英语
英文关键词: Indian wave climate
; mixed sea state
; multipeaked spectra
; ocean science
; surface waves
; swells
; wind-seas
Scopus关键词: Atmospheric pressure
; Atmospheric thermodynamics
; Climatology
; Gravity waves
; Surface waves
; Swelling
; Water waves
; Multi-peaked spectra
; Ocean science
; Sea state
; Wave climates
; Wind sea
; Ocean currents
英文摘要: In this article, we studied the characteristics of locally and remotely generated wind waves in the inner-shelf region of northwestern Bay of Bengal (BoB) based on the measured wave data. Two well-differentiated wave systems, one young sea from the east-southeast and another more developed swell from the south lead to bimodality in the wave spectrum. Wind-sea predominance is not observed in the monthly average wave spectrum and in all the months swells dominated indicating a swell-driven wave regime. During the monsoon (JJAS), the wave climate is dominated by long-period swell from the south-southeast and the short fetch during the northeast monsoon (ONDJ) leads to weaker easterly swells, while the effects of the sea/land breeze influence on the wave generation are more relevant during this season. During November–April, diurnal variation of 0.15 m in significant wave height (SWH) is observed. The study based on seasonally averaged ERA-Interim reanalysis data reveals a weak connection between the waves in the northwestern BoB and the El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) events. The waves are influenced by ENSO events during June–September and by IOD events during October–January, which consequently caused inter-annual variations in monthly average SWH. The present study, however, did not show a significant inter-annual variability in annual mean SWH during 1979–2015. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116544
Appears in Collections: 全球变化的国际研究计划
There are no files associated with this item.
作者单位: Ocean Engineering Division, CSIR-National Institute of Oceanography (Council of Scientific & Industrial Research), Dona Paula, Goa, India
Recommended Citation:
Anjali Nair M.,Sanil Kumar V.,Amrutha M.M.,et al. Features of locally and remotely generated surface gravity waves in the inner-shelf region of northwestern Bay of Bengal[J]. International Journal of Climatology,2019-01-01,39(3)