DOI: 10.1007/s00382-013-1961-z
Scopus记录号: 2-s2.0-84899638988
论文题名: On the Ningaloo Niño/Niña
作者: Kataoka T. ; Tozuka T. ; Behera S. ; Yamagata T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期: 2017-05-06 起始页码: 1463
结束页码: 1482
语种: 英语
英文关键词: Coastal upwelling
; Leeuwin Current
; Ningaloo Niño/Niña
; Unstable air-sea interaction
; Western Australia
英文摘要: Using both observational and reanalysis data, evolution processes of a regional climate phenomenon off Western Australia named recently "Ningaloo Niño (Niña)" are studied in detail. It is also shown that the Ningaloo Niño (Niña) has significant impacts on the precipitation over Australia. The Ningaloo Niño (Niña), which is associated with positive (negative) sea surface temperature (SST) anomalies and atmospheric anomalies off the western coast of Australia, peaks during austral summer and is classified into two types based on the difference in the evolution process. The first type called a locally amplified mode develops through an intrinsic unstable air-sea interaction off the western coast of Australia; an anomalous cyclone (anticyclone) generated by positive (negative) SST anomalies forces northerly (southerly) alongshore wind anomalies, which induce coastal downwelling (upwelling) anomalies, and enhance the positive (negative) SST anomalies further. The second type called a non-locally amplified mode is associated with coastally trapped waves originating in either the western tropical Pacific, mostly related to El Niño/Southern Oscillation, or the northern coast of Australia. Positive (negative) SST anomalies in both modes are associated with an anomalous low (high) off the western coast of Australia. The sea level pressure (SLP) anomalies in the locally amplified mode are regionally confined with a cell-like pattern and produce a sharp offshore pressure gradient along the western coast of Australia, whereas those in the non-locally amplified mode tend to show a zonally elongated pattern. The difference is found to be related to conditions of the continental SLP modulated by the Australian summer monsoon and/or the Southern Annular Mode. © 2013 Springer-Verlag Berlin Heidelberg. 资助项目: JSPS, National Oceanic and Atmospheric Administration
; NOAA, National Oceanic and Atmospheric Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54349
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan; Application Laboratory, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan
Recommended Citation:
Kataoka T.,Tozuka T.,Behera S.,et al. On the Ningaloo Niño/Niña[J]. Climate Dynamics,2014-01-01,43(2017-05-06)