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引用本文:寇睿之,徐振华,尹宝树,冯明,李群.印尼海龙目海峡上层环流季节变化及影响机制.海洋与湖沼,2020,51(4):829-838.
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印尼海龙目海峡上层环流季节变化及影响机制
寇睿之1,2,3, 徐振华1,2,4,3, 尹宝树1,2,4,3, 冯明5,6, 李群7
1.中国科学院海洋研究所 海洋环流与波动重点实验室 青岛 266071;2.青岛海洋科学与技术试点国家实验室 青岛 266237;3.中国科学院大学 北京 100049;4.中国科学院海洋大科学研究中心 青岛 266071;5.Commonwealth Scientific and Industrial Research Organisation (CSIRO), Hobart, TAS, Australia;6.Centre for Southern Hemisphere Oceans Research, Hobart, TAS, Australia;7.中国极地研究中心 上海 200136
摘要:
本文基于2002—2016年OFAM(Ocean Forecast Australian Model)模式数据,通过谱分析与相关分析等方法,研究了龙目海域上层环流结构的季节变化特征及主要的影响因素。分析结果表明,龙目海峡(Lombok Strait)平均流量占印尼贯穿流(Indonesian throughflow,ITF)总出口流量的15%,呈现出南半球冬强夏弱的特点,具有半年和一年的周期特征;龙目海域上层环流结构具有明显的季节特征,受到卡里马塔海峡贯穿流(Karimata strait throughflow,KSTF)和望加锡海峡贯穿流(Makassar strait throughflow,MSTF)的周期性影响,一年可以分为四个阶段,存在结构性差异。KSTF(MSTF)为上层龙目海峡带来高温低盐(低温高盐)水团。进一步分析发现局地风场、大气季节内振荡(Madden-Julian Oscillation,MJO)以及海底地形是龙目海域上层环流结构季节变化的主要影响因素。
关键词:  龙目海峡  印尼贯穿流  OFAM (Ocean Forecast Australian Model)  上层环流
DOI:10.11693/hyhz20200300053
分类号:P731.21
基金项目:中科院战略性先导专项,XDB42000000号;国家自然科学重大研究计划培育项目,91858103号;中国科学院前沿科学重点研究计划,QYZDB-SSW-DQC024号;国家自然科学面上基金,41676006号。
附件
SEASONAL VARIATION OF UPPER LAYER CIRCULATION IN LOMBOK SEA AREA BASED ON OFAM DATA
KOU Rui-Zhi1,2,3, XU Zhen-Hua1,2,4,3, YIN Bao-Shu1,2,4,3, FENG Ming5,6, LI Qun7
1.CAS Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology Chinese Academy of Sciences, Qingdao 266071, China;2.Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China;3.University of Chinese Academy of Sciences, Beijing 100049, China;4.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;5.Commonwealth Scientific and Industrial Research Organisation(CSIRO), Hobart, TAS, Australia;6.Centre for Southern Hemisphere Oceans Research, Hobart, TAS, Australia;7.Polar Research Institute of China, Shanghai 200136, China
Abstract:
Based on Ocean Forecast Australian Model data, we investigated the seasonal variation of the upper layer circulation of Lombok sea area (Indonesia) and its influencing factors using multiple statistical methods including spectral analysis and composite analysis. Results that the average volume transport through the Lombok Strait accounts for 15% of that of the Indonesian throughflow, showing distinct seasonal variation, strong in winter and weak in summer, and typically in one or half year cycle. Owing to the cyclical effect of Karimata Strait throughflow with high temperature and low salt water mass and Makassar Strait throughflow with low temperature and high salt water mass, significant seasonal structural differences exist in the upper circulation of the Lombok sea area. Further analyses suggest that local wind, Madden-Julian Oscillation and submarine topography are the main factors affecting the seasonal variation of the upper circulation structure in the Lombok sea area.
Key words:  Lombok Strait  Indonesian throughflow  OFAM (Ocean Forecast Australian Model)  upper layer circulation
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