详细信息
文献类型:期刊文献
中文题名:吕宋冷涡的年际变化及影响机制分析
英文题名:Interannual Variation of the Luzon Cold Eddy and Its Mechanism
作者:邓思捷[1];谢玲玲[1,2];朱振坤[3];李君益[1,2]
机构:[1]广东海洋大学海洋与气象学院近海海洋变化与灾害预警实验室,广东湛江524088;[2]陆架及深远海气候、资源与环境广东省高等学校重点实验室,广东湛江524088;[3]深圳朗城海洋科技公司,广东深圳518000
年份:2022
卷号:40
期号:1
起止页码:13
中文期刊名:海洋科学进展
外文期刊名:Advances in Marine Science
收录:CSTPCD、、CSCD2021_2022、北大核心、CSCD、北大核心2020
基金:“全球变化与海气相互作用”专项国际合作项目——南海SCS-YGST02区块海洋环境参数遥感调查II期(GASI-02-SCS-YGST2-02);国家自然科学基金项目——南海西北陆架垂向环流动力诊断及其季节变化(41776034);广东省普通高校创新团队项目——南海多尺度动力过程及其生物地球化学效应研究(231389002)。
语种:中文
中文关键词:吕宋冷涡;年际变化;风应力旋度;因果分析
外文关键词:Luzon Cold Eddy;interannual variation;wind stress curl;causality analysis
中文摘要:基于吕宋岛附近海域1985—2020年的海表温度、风应力和海面高度等卫星资料,分析吕宋冷涡(Luzon Cold Eddy,LCE)强度及中心位置的年际及长期变化趋势,探讨风场和黑潮入侵在LCE变化过程中的作用。结果表明:35 a来,LCE整体呈现减弱趋势,其中心位置最大概率出现在(117°54′E,18°06′N)附近,且存在向西北方向偏移趋势。经验模态分解结果显示:LCE强度和位置的年际变化存在2~3 a、6~7 a以及12~13 a左右的本征周期,其中以3 a左右周期的模态为主导。信息流因果分析显示:LCE强度变化与风应力和风应力旋度互为因果,LCE对风场的影响大于风场对LCE的影响。在3 a时间尺度上,LCE主要受到风的影响,而在10 a以上长时间尺度上,LCE变化则与黑潮入侵更相关。
外文摘要:Using the satellite time series of sea surface temperature,wind stress and sea surface height from 1985 to 2020,this study analyzes the interannual variation and long-term trend of the Luzon Cold Eddy(LCE)to the west of the Luzon Island and the effects of wind and the Kuroshio intrusion on the LCE variation.The results show that the intensity of the LCE had a weak decreasing trend in the past 35 years.The center of the LCE is mostly located at 117°54′E,18°06′N and has a trend of northwestward shift.The EEMD analysis reveals that the LCE has intrinsic variation periods of about 3-year,7-year and 13-year,of which the 3-year period is the dominant one.The causality analysis indicates that the wind and the LCE interact with each other,but the LCE has stronger influence on the wind stress.For the interannual variation with the 3-year period,the wind has dominant influence on the LCE than the Kuroshio intrusion.For the decadal variation with period longer than 10 years,however,the Kuroshio intrusion plays a more important role than the wind.
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