CAREER: Impacts of Convective and Stratiform Processes on Tropical Cyclone Intensity Change

职业:对流和层状过程对热带气旋强度变化的影响

基本信息

  • 批准号:
    1701225
  • 负责人:
  • 金额:
    $ 48万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2016
  • 资助国家:
    美国
  • 起止时间:
    2016-08-15 至 2020-06-30
  • 项目状态:
    已结题

项目摘要

This study will investigate the impacts of convective and stratiform processes on tropical cyclone (TC) intensity change through analysis of mesoscale observations, with a focus on aircraft and Doppler radar data. Our ability to skillfully predict changes in TC intensity is still limited, but recent studies have suggested that the radial location of deep convective bursts and stratiform precipitation relative to the radius of maximum wind (RMW) may play an important role in intensification efficiency. Testing these new hypotheses using mesoscale observations is needed to diagnose the most important physical processes responsible for intensity change and improve TC intensity forecasts.Intellectual Merit:Analysis of Doppler radar, dropsonde, satellite, and other observations will be used to examine TC convective and stratiform structures, their thermodynamic and dynamic environment, and their impacts on the TC circulation. Previous theoretical and numerical studies have suggested that convective heating and associated low-level convergence inside the RMW can efficiently intensify the maximum winds. Outside the RMW, mid-level inflow associated with stratiform precipitation can efficiently spin-up the broader circulation through convergence of absolute angular momentum above the frictional boundary layer. The research will use existing research observations at different stages of the TC lifecycle from intensifying and non-intensifying storms to test these hypotheses. A new variational analysis technique called SAMURAI developed by the Principal Investigator will be used to integrate aircraft and radar observations into three-dimensional thermodynamic and kinematic fields for analysis. High-resolution Cartesian and low-wavenumber cylindrical analyses with improved radar thermodynamic retrievals will be conducted and augmented with numerical simulations to improve our understanding of TC intensification.Broader Impacts:This study integrates research and education by developing a new graduate radar meteorology course with a digital, interactive textbook, and incorporating mesoscale TC observations into physical meteorology curricula to train and encourage students to test scientific hypotheses using field observations. The open source SAMURAI analysis software and material from the digital radar meteorology textbook will be available to the atmospheric science community to enhance research and education infrastructure. The University of Hawaii at Manoa represents a demographically and geographically unique state in an EPSCoR jurisdiction, and the Principal Investigator is committed to improving diversity by including women and underrepresented minorities such as Pacific Islanders and Native Hawaiians in the project. Improvements in our understanding of TC intensity change can have a significant positive impact on society. The application of the findings from continued research on hurricanes and typhoons can ultimately help to improve our forecast ability and reduce life and property loss throughout the globe.
本研究将透过分析中尺度观测资料,以飞机及多普勒雷达资料为重点,探讨对流及层状云过程对热带气旋强度变化的影响。我们熟练地预测TC强度变化的能力仍然有限,但最近的研究表明,深对流爆发和层状降水相对于最大风速半径(RMW)的径向位置可能在强化效率中发挥重要作用。需要使用中尺度观测来检验这些新假设,以诊断导致强度变化的最重要物理过程并改进TC强度预报。知识产权:分析多普勒雷达、下投式探空仪、卫星和其他观测数据将用于检查TC对流和层状结构、其热力学和动力学环境及其对TC环流的影响。以往的理论和数值研究表明,对流加热和相关的低层辐合内的RMW可以有效地加强最大风。在RMW之外,与层状降水相关的中层入流可以通过摩擦边界层上方绝对角动量的会聚有效地旋转更广泛的环流。这项研究将利用现有的研究观察在不同阶段的TC生命周期从加强和非加强风暴来测试这些假设。由首席研究员开发的称为SAMURAI的新变分分析技术将用于将飞机和雷达观测结果整合到三维热力学和运动学领域进行分析。高分辨率笛卡尔和低波数圆柱形分析与改进的雷达热力学检索将进行和增强数值模拟,以提高我们对TC intensification.Broader Impacts的理解:这项研究整合了研究和教育,通过开发一个新的研究生雷达气象学课程与数字,交互式教科书,并将中尺度TC观测纳入物理气象课程,以培训和鼓励学生使用现场观测来测试科学假设。开放源码SAMURAI分析软件和数字雷达气象学教科书中的材料将提供给大气科学界,以加强研究和教育基础设施。马诺阿的夏威夷大学代表了EPSCoR管辖范围内人口和地理上独特的州,首席研究员致力于通过将妇女和代表性不足的少数民族(如太平洋岛民和夏威夷土著人)纳入该项目来改善多样性。我们对TC强度变化的理解的提高可以对社会产生重大的积极影响。对飓风和台风的持续研究结果的应用最终将有助于提高我们的预报能力,减少整个地球仪的生命和财产损失。

项目成果

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Michael Bell其他文献

Comparison of natural abundance and enriched 15N methods to quantify nitrogen fertilizer recovery in maize under field conditions
  • DOI:
    10.1007/s11104-024-07088-6
  • 发表时间:
    2024-11-26
  • 期刊:
  • 影响因子:
    4.100
  • 作者:
    Sarita Manandhar;Cristina Martinez;Neal W. Menzies;Ram C. Dalal;Michael Bell
  • 通讯作者:
    Michael Bell
S14-03 From trait to base pairs: Parallel evolution of pelvic reduction in three-spined sticklebacks occurs by repeated deletion of a tissue-specific pelvic enhancer at Pitx1
  • DOI:
    10.1016/j.mod.2009.06.980
  • 发表时间:
    2009-08-01
  • 期刊:
  • 影响因子:
  • 作者:
    Yingguang Frank Chan;Guadalupe Villarreal;Melissa Marks;Michael Shapiro;Felicity Jones;Dmitri Petrov;Mark Dickson;Audrey Southwick;Devin Absher;Jane Grimwood;Jeremy Schmutz;Richard Myers;Bjarni Jónsson;Dolph Schluter;Michael Bell;David Kingsley
  • 通讯作者:
    David Kingsley
An approximate analytical approach to estimate the diffusivity of toxic chemicals in polymer barrier materials from the time evolution of sessile drop profiles
  • DOI:
    10.1007/s00289-018-2382-2
  • 发表时间:
    2018-05-31
  • 期刊:
  • 影响因子:
    4.000
  • 作者:
    Molly N. Richards;Michael Bell;Rajagopalan Srinivasan;Ali Borhan;Ramanathan Nagarajan
  • 通讯作者:
    Ramanathan Nagarajan
Combining precipitation forecasts and vegetation health to predict fire risk at subseasonal timescale in the Amazon
结合降水预报和植被健康状况来预测亚马逊次季节时间尺度的火灾风险
  • DOI:
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    6.7
  • 作者:
    Kátia Fernandes;Michael Bell;Á. Muñoz
  • 通讯作者:
    Á. Muñoz
Shaping a Strengths-Based Approach to Relational Leadership
塑造基于优势的关系领导方法
  • DOI:
    10.4018/978-1-4666-7495-0.ch011
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    4.5
  • 作者:
    Michael Bell;C. Palmer
  • 通讯作者:
    C. Palmer

Michael Bell的其他文献

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{{ truncateString('Michael Bell', 18)}}的其他基金

Collaborative Research: AGS-FIRP Track 2--Process Investigation of Clouds and Convective Organization over the atLantic Ocean (PICCOLO)
合作研究:AGS-FIRP Track 2——大西洋上空云和对流组织的过程调查(PICCOLO)
  • 批准号:
    2331202
  • 财政年份:
    2024
  • 资助金额:
    $ 48万
  • 项目类别:
    Continuing Grant
AGS-CIF: A Sea-Going and Land Deployable Polarimetric (SEA-POL) Radar for the Science Community
AGS-CIF:面向科学界的海陆可部署偏振 (SEA-POL) 雷达
  • 批准号:
    2113042
  • 财政年份:
    2021
  • 资助金额:
    $ 48万
  • 项目类别:
    Continuing Grant
Collaborative Research: Dynamics, Thermodynamics, and Microphysics of Extreme Rainfall Observed during PRECIP (Prediction of Rainfall Extremes Campaign In the Pacific)
合作研究:PRECIP(太平洋极端降雨预测活动)期间观测到的极端降雨的动力学、热力学和微观物理学
  • 批准号:
    1854559
  • 财政年份:
    2019
  • 资助金额:
    $ 48万
  • 项目类别:
    Continuing Grant
Preparation of Research Collections to Deposit in Museums
准备存放在博物馆的研究藏品
  • 批准号:
    1745393
  • 财政年份:
    2017
  • 资助金额:
    $ 48万
  • 项目类别:
    Standard Grant
SI2-SSI: Lidar Radar Open Software Environment (LROSE)
SI2-SSI:激光雷达开放软件环境(LROSE)
  • 批准号:
    1661663
  • 财政年份:
    2016
  • 资助金额:
    $ 48万
  • 项目类别:
    Standard Grant
SI2-SSI: Lidar Radar Open Software Environment (LROSE)
SI2-SSI:激光雷达开放软件环境(LROSE)
  • 批准号:
    1550597
  • 财政年份:
    2016
  • 资助金额:
    $ 48万
  • 项目类别:
    Standard Grant
CAREER: Impacts of Convective and Stratiform Processes on Tropical Cyclone Intensity Change
职业:对流和层状过程对热带气旋强度变化的影响
  • 批准号:
    1349881
  • 财政年份:
    2014
  • 资助金额:
    $ 48万
  • 项目类别:
    Continuing Grant
Doctoral Dissertation Research: A Club Apple Society: What this New Economic Organization Says About The Biology of Markets
博士论文研究:苹果俱乐部协会:这个新经济组织对市场生物学的看法
  • 批准号:
    1230494
  • 财政年份:
    2012
  • 资助金额:
    $ 48万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Transnational Migration and Health Access
博士论文研究:跨国移民与健康获取
  • 批准号:
    1103236
  • 财政年份:
    2011
  • 资助金额:
    $ 48万
  • 项目类别:
    Standard Grant
Long-term Research in Environmental Biology (LTREB): Rapid evolution of a Threespine Stickleback Population
环境生物学长期研究(LTREB):三刺刺鱼种群的快速进化
  • 批准号:
    0919184
  • 财政年份:
    2010
  • 资助金额:
    $ 48万
  • 项目类别:
    Standard Grant

相似国自然基金

IMPACTS站点土壤铝活化机制研究
  • 批准号:
    40273045
  • 批准年份:
    2002
  • 资助金额:
    32.0 万元
  • 项目类别:
    面上项目

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Mesoscale Convective Systems: PRobabilistic forecasting and upscale IMpacts in the grey zonE (MCS:PRIME)
中尺度对流系统:概率预测和灰色地带的高档影响 (MCS:PRIME)
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    NE/W005530/1
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NSF-BSF:气溶胶对热带深层对流云微物理成分、带电和辐射强迫影响的定量评估
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  • 批准号:
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Collaborative Research: Impacts of Microphysical, Thermodynamic, and Dynamical Processes on Nocturnal and Oceanic Convective Systems via Analyses from PECAN and HAIC/HIWC
合作研究:通过 PECAN 和 HAIC/HIWC 的分析,微物理、热力学和动力过程对夜间和海洋对流系统的影响
  • 批准号:
    1841966
  • 财政年份:
    2019
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    $ 48万
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  • 批准号:
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