DOI: 10.1007/s00382-017-3704-z
Scopus记录号: 2-s2.0-85018260766
论文题名: The response of the southwest Western Australian wave climate to Indian Ocean climate variability
作者: Wandres M. ; Pattiaratchi C. ; Hetzel Y. ; Wijeratne E.M.S.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 50, 期: 2018-05-06 起始页码: 1533
结束页码: 1557
语种: 英语
英文关键词: Climate indices
; Southern annular mode
; Southwest Australia
; Subtropical ridge
; SWAN wave model
; Wave climate
Scopus关键词: annual variation
; atmospheric wave
; climate variation
; continental shelf
; high pressure system
; regional climate
; seasonal variation
; shelf wave
; wave generation
; wave height
; wave modeling
; wind wave
; Australia
; Indian Ocean
; Western Australia
英文摘要: Knowledge of regional wave climates is critical for coastal planning, management, and protection. In order to develop a regional wave climate, it is important to understand the atmospheric systems responsible for wave generation. This study examines the variability of the southwest Western Australian (SWWA) shelf and nearshore wind wave climate and its relationship to southern hemisphere climate variability represented by various atmospheric indices: the southern oscillation index (SOI), the Southern Annular Mode (SAM), the Indian Ocean Dipole Mode Index (DMI), the Indian Ocean Subtropical Dipole (IOSD), the latitudinal position of the subtropical high-pressure ridge (STRP), and the corresponding intensity of the subtropical ridge (STRI). A 21-year wave hindcast (1994–2014) of the SWWA continental shelf was created using the third generation wave model Simulating WAves Nearshore (SWAN), to analyse the seasonal and inter-annual wave climate variability and its relationship to the atmospheric regime. Strong relationships between wave heights and the STRP and the STRI, a moderate correlation between the wave climate and the SAM, and no significant correlation between SOI, DMI, and IOSD and the wave climate were found. Strong spatial, seasonal, and inter-annual variability, as well as seasonal longer-term trends in the mean wave climate were studied and linked to the latitudinal changes in the subtropical high-pressure ridge and the Southern Ocean storm belt. As the Southern Ocean storm belt and the subtropical high-pressure ridge shifted southward (northward) wave heights on the SWWA shelf region decreased (increased). The wave height anomalies appear to be driven by the same atmospheric conditions that influence rainfall variability in SWWA. © 2017, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109425
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: School of Civil, Environmental and Mining Engineering and the UWA Oceans Institute, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
Recommended Citation:
Wandres M.,Pattiaratchi C.,Hetzel Y.,et al. The response of the southwest Western Australian wave climate to Indian Ocean climate variability[J]. Climate Dynamics,2018-01-01,50(2018-05-06)