The Effects of Tropical Waves on the Formation and Structure of Tropical Cyclones
热带波对热带气旋形成和结构的影响
基本信息
- 批准号:0630364
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2006
- 资助国家:美国
- 起止时间:2006-10-01 至 2011-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Five types of large-scale tropical waves in the atmosphere travel around Earth's equatorial regions. In his previous work, the PI analyzed these waves in observations and determined that four of the five wave types have a significant influence on the formation of tropical cyclones (called hurricanes in the Western Hemisphere). His and others' recent research have shown that the propagating waves play major roles in modulating patterns of rainfall and winds. They have also been shown to be integrally related to the formation of many or most of the tropical cyclones that occur throughout the world. They almost certainly affect the structure and intensity of mature hurricanes as well. Building upon that work, this research project focuses on determining the role of large-scale tropical waves in forming and modulating hurricanes in the North Atlantic and Northeast Pacific basins. Under this award the PI will focus on storms that formed in the years 2003-2005. The final year was an active year for destructive North Atlantic hurricanes. Observational analyses will determine what tropical waves were present during the formation and development of each storm. Relationships will be sought between the presence of different types of waves and storm formation and changes in storm structure. Each case study will consist of observational analyses and a series of numerical simulation experiments. The observational analyses will use spectral filtering techniques to isolate the wave perturbation fields occurring throughout the storm's life cycle. The filter bands will be designed to capture the activity of the five major tropical wave types that are most prominent in the large-scale flow (the Madden-Julian Oscillation, equatorial Rossby waves, mixed-Rossby-gravity waves, Kelvin waves, and tropical-depression-type waves). These filtered data, along with the hurricane structure data from the available data sources, will be used to determine relationships between wave activity and the formation and structural changes of the hurricanes. The storms will be simulated using a high-resolution version of the Weather Research and Forecasting (WRF) model. Control simulations, using the full observed state of the atmosphere as initial conditions will be compared with simulations in which the different types of waves have been removed from the initial state or included with modified phases or strengths. From the results of these experiments, the influences of tropical waves on cyclone formation and structural evolution will be determined quantitatively. In addition to improving our knowledge of important physical mechanisms governing the behavior of hurricanes, this study should lead to direct improvements in the capacity to forecast hurricane formation and structure change. The tropical waves to be studied are large-scale and have periods ranging from about 4-90 days. These waves are inherently predictable using statistical and/or deterministic models. Understanding how these waves influence tropical cyclones will lead to improved predictions of tropical cyclone formation and development. Two graduate students will be trained at the PhD level.
大气层中有五种大尺度的热带波在地球赤道附近传播。在他之前的工作中,PI分析了这些波的观测结果,并确定五种波类型中的四种对热带气旋(在西半球称为飓风)的形成有重要影响。他和其他人最近的研究表明,传播的波在调节降雨和风的模式方面起着重要作用。它们也被证明与世界各地发生的许多或大多数热带气旋的形成有着内在的联系。它们几乎肯定也会影响成熟飓风的结构和强度。在这项工作的基础上,该研究项目的重点是确定大规模热带波在形成和调制北大西洋和东北太平洋盆地飓风中的作用。根据该奖项,PI将专注于2003-2005年形成的风暴。最后一年是北大西洋飓风活跃的一年。观测分析将确定在每个风暴形成和发展期间存在哪些热带波。将寻求不同类型波浪的存在与风暴形成和风暴结构变化之间的关系。每个案例研究将包括观测分析和一系列数值模拟实验。观测分析将使用光谱过滤技术,以隔离整个风暴生命周期中发生的波扰动场。滤波器波段的设计将捕捉大尺度气流中最突出的五种主要热带波类型的活动(马登-朱利安振荡、赤道Rossby波、混合Rossby重力波、开尔文波和热带低压型波)。这些过滤后的数据,沿着从现有数据源获得的飓风结构数据,将用于确定波浪活动与飓风的形成和结构变化之间的关系。风暴将使用高分辨率版本的天气研究和预报(WRF)模型进行模拟。控制模拟,使用完整的观察到的大气状态作为初始条件将进行比较,在模拟中,不同类型的波已经从初始状态中删除,或包括修改的相位或强度。根据这些实验结果,将定量地确定热带波对气旋形成和结构演变的影响。除了提高我们对控制飓风行为的重要物理机制的认识外,这项研究还将直接提高预测飓风形成和结构变化的能力。待研究的热带波是大尺度的,周期约为4-90天。这些波本质上是使用统计和/或确定性模型可预测的。了解这些波如何影响热带气旋将有助于改进对热带气旋形成和发展的预测。两名研究生将接受博士水平的培训。
项目成果
期刊论文数量(0)
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会议论文数量(0)
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Fuqing Zhang其他文献
Observations of Greenhouse Gas Changes Across Summer Frontal Boundaries in the Eastern United States
美国东部夏季锋面边界温室气体变化的观测
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
S. Pal;K. Davis;T. Lauvaux;E. Browell;B. Gaudet;D. Stauffer;M. Obland;Yonghoon Choi;J. Digangi;S. Feng;B. Lin;N. Miles;R. Pauly;S. Richardson;Fuqing Zhang - 通讯作者:
Fuqing Zhang
The thermodynamic cycles and associated energetics of Hurricane Edouard (2014) during its intensification
飓风爱德华 (2014) 强化期间的热力学循环和相关能量学
- DOI:
10.1175/jas-d-18-0221.1 - 发表时间:
2019 - 期刊:
- 影响因子:3.1
- 作者:
Juan Fang;Olivier Pauluis;Fuqing Zhang - 通讯作者:
Fuqing Zhang
Assimilation of All-sky Geostationary Satellite Infrared Radiances for Convection-Permitting Initialization and Prediction of Hurricane Joaquin (2015)
全天对地静止卫星红外辐射同化用于对流允许初始化和飓风华金的预测(2015)
- DOI:
10.1007/s00376-022-2015-4 - 发表时间:
2022 - 期刊:
- 影响因子:5.8
- 作者:
Lei Zhu;Zhiyong Meng;Yonghui Weng;Fuqing Zhang - 通讯作者:
Fuqing Zhang
The Impact of the Observation Data Assimilation on Atmospheric Reanalyses over Tibetan Plateau and Western Yunnan-Guizhou Plateau
- DOI:
https://doi.org/10.3390/atmos12010038 - 发表时间:
2021 - 期刊:
- 影响因子:2.9
- 作者:
Xinghua Bao;Fuqing Zhang;Yang Zhao;Yueli Chen - 通讯作者:
Yueli Chen
Knowledge fusion distillation and gradient-based data distillation for class-incremental learning
用于类别增量学习的知识融合蒸馏和基于梯度的数据蒸馏
- DOI:
10.1016/j.neucom.2024.129286 - 发表时间:
2025-03-14 - 期刊:
- 影响因子:6.500
- 作者:
Lin Xiong;Xin Guan;Hailing Xiong;Kangwen Zhu;Fuqing Zhang - 通讯作者:
Fuqing Zhang
Fuqing Zhang的其他文献
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{{ truncateString('Fuqing Zhang', 18)}}的其他基金
Collaborative Research: Dynamics and Predictability of Tropical Weather and Climate through Cloud-resolving Ensemble Assimilation of Sounding and Radar Observations from DYNAMO
合作研究:通过 DYNAMO 探测和雷达观测的云解析集合同化热带天气和气候的动力学和可预测性
- 批准号:
1305798 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Continuing Grant
Dynamics and Impacts of Mesoscale Gravity Waves in the Moist Baroclinic Jet-Front Systems
湿斜压射流锋系统中中尺度重力波的动力学和影响
- 批准号:
1114849 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Continuing Grant
Doppler Radar Observations and Ensemble-Based Data Assimilation for Cloud-Resolving Hurricane Prediction
用于云解析飓风预测的多普勒雷达观测和基于集合的数据同化
- 批准号:
0840651 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Standard Grant
Dynamics and Impacts of Mesoscale Gravity Waves in Baroclinic Jet-Front Systems
斜压射流系统中中尺度重力波的动力学和影响
- 批准号:
0904635 - 财政年份:2008
- 资助金额:
-- - 项目类别:
Continuing Grant
Dynamics and Impacts of Mesoscale Gravity Waves in Baroclinic Jet-Front Systems
斜压射流系统中中尺度重力波的动力学和影响
- 批准号:
0618662 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Continuing Grant
Collaborative Research: ITR--Ensemble-Based State Estimation for a Next-Generation Weather Forecasting Model
合作研究:ITR——基于集合的下一代天气预报模型状态估计
- 批准号:
0205599 - 财政年份:2002
- 资助金额:
-- - 项目类别:
Standard Grant
Dynamics and Impacts of Mesoscale Gravity Waves
中尺度重力波的动力学和影响
- 批准号:
0203238 - 财政年份:2002
- 资助金额:
-- - 项目类别:
Continuing Grant
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