IF 1.2 4区地球科学

热带气象学报 Pub Date : 2022-01-01 DOI: 10.46267/j.1006-8775.2022.027

Zhou Guan-bo, Jiao Ya-Yin, Xu Ying-long

{"title":"Diagnostic Analysis of Wave Action Density During Heavy Rainfall Caused by Landfalling Typhoon","authors":"Zhou Guan-bo, Jiao Ya-Yin, Xu Ying-long","doi":"10.46267/j.1006-8775.2022.027","DOIUrl":"https://doi.org/10.46267/j.1006-8775.2022.027","url":null,"abstract":": Based on prior investigation, this work defined a new thermodynamic shear advection parameter, which combines the vertical component of convective vorticity vector, horizontal divergence, and vertical gradient of generalized potential temperature. The interaction between waves and fundamental states was computed for the heavy-rainfall event generated by landfalling typhoon “ Morakot ” . The analysis data was produced by ADAS [ARPS (Advanced Regional Prediction System) Data Analysis System] combined with the NCEP/NCAR final analysis data (1°×1°, 26 vertical pressure levels and 6-hour interval) with the routine observations of surface and sounding. Because it may describe the typical vertical structure of dynamical and thermodynamic fields, the result indicates that the parameter is intimately related to precipitation systems. The parameter ’ s positive high-value area closely matches the reported 6-hour accumulated surface rainfall. And the statistical analysis reveals a certain correspondence between the thermodynamic shear advection parameter and the observed 6-hour accumulated surface rainfall in the summer of 2009. This implies that the parameter can predict and indicate the rainfall area, as well as the initiation and evolution of precipitation systems.","PeriodicalId":17432,"journal":{"name":"热带气象学报","volume":"85 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76190422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the Application of the Radiative Transfer Model Based on Deep Neural Network in One-dimensional Variational Algorithm 基于深度神经网络的辐射传递模型在一维变分算法中的应用研究

IF 1.2 4区地球科学

热带气象学报 Pub Date : 2022-01-01 DOI: 10.46267/j.1006-8775.2022.025

He Qiu-rui, Zhang Rui-ling, Li Jiao-yang, Wang Zhen-zhan

引用次数: 0

Characteristics of Radar Echo Parameters and Microphysical Structure Simulation of a Short-Time Heavy Precipitation Supercell 一次短时强降水超级单体雷达回波参数特征及微物理结构模拟

IF 1.2 4区地球科学

热带气象学报 Pub Date : 2022-01-01 DOI: 10.46267/j.1006-8775.2022.029

Zhao Gui-xiang, Wang Yi-jie, Lian Zhi-luan

引用次数: 0

Spatiotemporal Variation of Water Vapor Budget over the Tibetan Plateau and Its Regulation on Precipitation 青藏高原水汽收支时空变化及其对降水的调控

IF 1.2 4区地球科学

热带气象学报 Pub Date : 2022-01-01 DOI: 10.46267/j.1006-8775.2022.015

Wang Hui-mei, Z. Ping

{"title":"Spatiotemporal Variation of Water Vapor Budget over the Tibetan Plateau and Its Regulation on Precipitation","authors":"Wang Hui-mei, Z. Ping","doi":"10.46267/j.1006-8775.2022.015","DOIUrl":"https://doi.org/10.46267/j.1006-8775.2022.015","url":null,"abstract":": The spatiotemporal variations of water vapor budget (Bt) and their relationships with local precipitation over the Tibetan Plateau (TP) are critical for understanding the characteristics of spatial distributions and evolutions of water resources over the TP. Based on a boundary of the TP, this paper explored the spatiotemporal characteristics of Bt over the TP using the European Centre for Medium-Range Weather Forecasts interim (ERA-Interim) reanalysis datasets. On the climatological mean, the TP is a water vapor sink throughout four seasons and the seasonal variation of Bt is closely associated with the water vapor budget at the southern boundary of the TP. The transient water vapor transport is quasi-meridional in the mid- and high-latitude areas and plays a leading role in winter Bt but contributes little in other seasons. At the interannual timescale, the variation of Bt is mainly determined by anomalous water vapor transports at the western and southern boundaries. The Bay of Bengal, the North Arabian Sea, and mid-latitude West Asia are the main sources of excessive water vapor for a wetter TP. At the southern and western boundaries, the transient water vapor budget regulates one-third to four-fifths of Bt anomalies. Moreover, the variability of the TP Bt is closely associated with precipitation over the central-southern and southeastern parts of the TP in summer and winter, which is attributed to the combined effect of the stationary and transient water vapor budgets. Given the role of the transient water vapor transport, the linkage between the TP Bt and local precipitation is tighter.","PeriodicalId":17432,"journal":{"name":"热带气象学报","volume":"61 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70476736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Kinematics and Microphysical Characteristics of the First Intense Rainfall Convective Storm Observed by Jiangsu Polarimetric Radar Network 江苏极化雷达网观测第一次强降水对流风暴的运动学和微物理特征

IF 1.2 4区地球科学

热带气象学报 Pub Date : 2022-01-01 DOI: 10.46267/j.1006-8775.2022.013

Wang Kun, Xia Xin, Mei Yi-qing, Jiang Ning, Wan Qi-lin, Li Min, GU Pei-shu, Peng Xiao-yan

引用次数: 0

Sensitivity Analysis of the Super Heavy Rainfall Event in Henan on 20 July (2021) Using ECMWF Ensemble Forecasts 利用ECMWF集合预报对河南7月20日(2021)特大暴雨事件的敏感性分析

IF 1.2 4区地球科学

热带气象学报 Pub Date : 2022-01-01 DOI: 10.46267/j.1006-8775.2022.024

Huang Qi-jun, GE Xu-yang, Peng Melinda, Deng Zhong-ren

引用次数: 2

Annual Frequency of Tropical Cyclones Directly Affecting Guangdong Province:Prediction Based on LSTM-FC 直接影响广东省的热带气旋年频率:基于LSTM-FC的预测