| 阿拉伯海热带气旋生成特征分析 |
| |
| 引用本文： | 李畅,姜霞,沈新勇.阿拉伯海热带气旋生成特征分析[J].山东气象,2021,41(4):62-72. |
| |
| 作者姓名： | 李畅 姜霞 沈新勇 |
| |
| 作者单位： | （1.南京信息工程大学气象灾害教育部重点实验室/气候与环境变化国际合作联合实验室/气象灾害预报预警与评估协同创新中心，江苏 南京 210044；2.中国海洋大学海洋与大气学院，山东 青岛 266100；3.南方海洋科学与工程广东省实验室（珠海），广东 珠海 519082） |
| |
| 基金项目： | 国家重点研发计划项目（2019YFC1510400）；国家自然科学基金项目（41930967，41975054，41790471）；中国科学院战略性先导科技专项（XDA20100304） |
| |
| 摘 要： | 利用印度气象局（India Meteorological Department，IMD）、国际气候管理最佳路径档案库（International Best Track Archive for Climate Stewardship，IBTrACS）提供的1982—2020年阿拉伯海热带气旋路径资料，美国国家环境预报中心（National Centers for Environmental Prediction，NCEP）再分析资料，对近39 a阿拉伯海热带气旋源地和路径特征、活跃区域、频数及气旋累积能量（accumulated cyclone energy，ACE）指数的季节特征和年际变化特征进行分析，并结合环境因素，说明其物理成因。结果表明：阿拉伯海热带气旋多发于10°~25°N，65°~75°E海域，5—6月、9—12月发生频数较高且强度较强，1—4月、7—8月发生频数较低且气旋近中心最大风速均小于35 kn；频数的季节变化主要受控于垂直风切变要素；阿拉伯海热带气旋发生频数和ACE近年有上升趋势，年际变化主要受控于海面温度（sea surface temperature，SST）和850 hPa相对湿度要素。
|
| 关 键 词： | 热带气旋 阿拉伯海 特征分析 气旋累积能量 |
Characteristics of tropical cyclones genesis in the Arabian Sea |
| |
| LI Chang,JIANG Xi,SHEN Xinyong.Characteristics of tropical cyclones genesis in the Arabian Sea[J].Journal of Shandong Meteorology,2021,41(4):62-72. |
| |
| Authors: | LI Chang JIANG Xi SHEN Xinyong |
| |
| Institution: | (1. Key Laboratory of Meteorological Disaster, Ministry of Education / Joint International Research Laboratory of Climate and Environment Change / Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China; 2.College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, China; 3. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China ) |
| |
| Abstract: | Based on the track data of tropical cyclones in the Arabian Sea from 1982 to 2020 provided by the India Meteorological Department (IMD) and the International Best Track Archive for Climate Stewardship (IBTrACS), and the reanalysis data provided by the National Centers for Environmental Prediction (NCEP) , the source and track characteristics, active area, seasonal and interannual variation characteristics of frequency and accumulated cyclone energy (ACE) index of tropical cyclones in the Arabian Sea in recent 39 years are analyzed, and the physical causes are explained in combination with environmental factors. The results show that tropical cyclones in the Arabian Sea mostly occur in the sea area of 10°~25°N, 65°~75°E. The frequency and intensity of tropical cyclones are high from May to June and September to December. In contrast, from January to April and July to August, the frequency of tropical cyclones is low, and the maximum wind speed near the center of cyclones is less than 35 kn. It is found that the seasonal variation of frequency of tropical cyclones is mainly controlled by vertical wind shear, while interannual variation is mainly controlled by sea surface temperature (SST) and 850 hPa relative humidity. The occurrence frequency and ACE of tropical cyclones in the Arabian Sea are increasing in recent years. |
| |
| Keywords: | tropical cyclone Arabian Sea characteristic analysis accumulated cyclone energy |
|
| 点击此处可从《山东气象》浏览原始摘要信息 |
| 点击此处可从《山东气象》下载免费的PDF全文 |
|
