| 热带气旋"凤凰"（2014）的结构演变及其引起的海洋响应分析 |
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| 引用本文： | 刘甫,明杰,张翰,田娣.热带气旋"凤凰"（2014）的结构演变及其引起的海洋响应分析[J].热带气象学报,2020,36(4):552-561. |
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| 作者姓名： | 刘甫 明杰 张翰 田娣 |
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| 作者单位： | 1.南京大学大气科学学院中尺度灾害性天气教育部重点实验室，江苏 南京 210023 |
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| 基金项目： | 国家自然科学基金41575044国家自然科学基金41806021中央高校基本科研业务费专项资金020714380053中央级公益性科研院所基本科研业务费专项资金项目QNYC2002灾害天气国家重点实验室开放课题2020LASW-A01上海交通大学"深蓝计划"项目SL2020MS032"全球变化与海气相互作用"专项GASI-IPOVAI-04 |
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| 摘 要： | 利用日本多功能运输卫星（Multi-functional Transport Satellite，简称为MTSAT-2）逐小时云顶亮温资料、Climate Prediction Center Morphing Technique（CMORPH）逐3小时降水资料及南海北部的现场观测资料，对2014年第16号热带气旋"凤凰"的结构演变和远距离洋面上的海洋响应特征进行了研究。结果表明:高空环流形势场的变化主导了"凤凰"的移动方向，调整其云系结构；"凤凰"过境期间测站处气压和气温明显下降，风速和相对湿度有所增加，并伴随有多次阵性降雨过程，最大降雨量可达174 mm/h；"凤凰"引起的强混合的热泵作用导致测站处海洋混合层冷却加深，三个站位观测到的最大海表面降温分别为0.53 ℃（站位2）、0.50 ℃（站位4）、1.18 ℃（站位5）；"凤凰"期间海表面盐度下降，且强降盐过程与降水时段具有较好的时间一致性，降水时段内，三个站位观测到的表层最大降盐量分别为0.557 psu（站位2）、0.407 psu（站位4）、0.773 psu（站位5）。
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| 关 键 词： | 热带气旋 卫星资料 降雨 上层海洋响应 海表面盐度 |
| 收稿时间： | 2019-12-16 |
ANALYSIS OF THE STRUCTURAL EVOLUTION OF TROPICAL CYCLONE FUNG-WONG AND CORRESPONDING UPPER OCEAN RESPONSE |
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| LIU Fu,MING Jie,ZHANG Han,TIAN Di.ANALYSIS OF THE STRUCTURAL EVOLUTION OF TROPICAL CYCLONE FUNG-WONG AND CORRESPONDING UPPER OCEAN RESPONSE[J].Journal of Tropical Meteorology,2020,36(4):552-561. |
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| Authors: | LIU Fu MING Jie ZHANG Han TIAN Di |
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| Institution: | 1.Key Laboratory of Mesoscale Severe Weather (Nanjing University), Ministry of Education, Nanjing 210023, China2.State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China3.Joint Center for Atmospheric Radar Research of Centre of Modern Analysis/Nanjing University (CMA/NJU), Nanjing 210023, China4.Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China |
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| Abstract: | Using cloud-top brightness temperature data from Japan Multi-functional Transport Satellite(MTSAT-2), 3-hourly Climate Prediction Center Morphing Technique(CMORPH) precipitation data and insitu observation data at the north of the South China Sea, we analyzed the structural evolution of tropicalcyclone Fung-wong (2014) and corresponding upper ocean response. Results showed that the change ofupper air circulation controlled Fung-wong's moving track, and modulated the structural evolution of Fungwong's cloud system. When Fung-wong was passing by observation stations, the air pressure andtemperature at the stations decreased, while wind speed and relative humidity increased. Fung-wongproduced several intermittent rainfall processes at the observation stations, with the maximum hourlyrainfall up to 174 mm / h. The mixed layer was deepened and cooled by the"heat pump"effect of theintense mixing induced by Fung-wong, with the maximum sea surface cooling of 0.53 ℃, 0.50 ℃, and1.18 ℃ at three stations, respectively. Weak tropical cyclone Fung-wong caused a decrease in salinity, andthe process of intense salinity reduction had a good time consistency with the precipitation period. Duringprecipitation period, the maximum salinity reduction in the mixed layer was 0.557, 0.407, and 0.773 psu atthree stations, respectively. |
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| Keywords: | tropical cyclone satellite data precipitation upper ocean response sea surface salinity |
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