Radar Studies of Severe Convective Storms and Tornadoes

强对流风暴和龙卷风的雷达研究

• 批准号: 0637148
• 负责人: Howard Bluestein
• 金额: --
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-01-15 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0637148&HistoricalAwards=false
• 关键词: Radar; Studies; Severe; Convective; Storms

Intellectual Merit: The main objective of this research is to understand better the dynamics and kinematics of severe convective storms and the tornadoes that they sometimes spawn. Broader Impacts: Severe convective storms and tornadoes are responsible for deaths, injuries, and damage in many portions of the U.S. It is expected that some of the basic scientific results from this project will eventually be put to practical use by weather forecasters. The improvements in radar technology that will be a byproduct of this project will aid in the study and understanding of other meteorological phenomena. The objectives of this project will be met by analyzing data collected in recent years by mobile, truck-mounted, Doppler radars, by collecting new datasets during small, highly focused field experiments to be conducted in the Southern Plains of the U.S., where severe weather is most likely to occur, and by collaborating with radar engineers to develop and test new techniques for probing severe convective storms and tornadoes. In particular, the Principal Investigator will: (1) Continue to analyze data collected in past years in severe convective storms and tornadoes by mobile, X- and W-band, Doppler radars. (2) Use for the first time a mobile, X-band, phased-array radar developed by the Navy, which can map the Doppler velocity and reflectivity fields in convective storms and tornadoes on time scales from seconds to tens of seconds, and develop techniques for displaying and analyzing the data. (3) Continue to use data from and develop analysis techniques for a high-resolution, W-band Doppler radar, which maps the Doppler-velocity wind and reflectivity fields in tornadoes and along clear-air surface boundaries, along which convective storms may form. (4) Continue to collaborate with radar engineers who are developing techniques for mapping the two-dimensional wind field and the precipitation field in convective storms using a "spaced antenna."

知识分子的优点：这项研究的主要目的是更好地了解严重对流风暴的动态和运动学以及有时会产生的龙卷风。更广泛的影响：严重的对流风暴和龙卷风是造成美国许多地区死亡，伤害和损害的原因，预计该项目的一些基本科学结果最终将被天气预报员实际使用。 将成为该项目的副产品的雷达技术的改进将有助于研究和理解其他气象现象。 The objectives of this project will be met by analyzing data collected in recent years by mobile, truck-mounted, Doppler radars, by collecting new datasets during small, highly focused field experiments to be conducted in the Southern Plains of the U.S., where severe weather is most likely to occur, and by collaborating with radar engineers to develop and test new techniques for probing severe convective storms and tornadoes. 特别是，首席研究人员将：（1）继续分析过去几年中通过移动，X和W波段，多普勒雷达的严重对流风暴和龙卷风收集的数据。 （2）首次使用由海军开发的移动，X频段，阶梯式雷达，它可以按时间尺度绘制对流风暴和龙卷风中的多普勒速度和反射率领域，并从几秒钟到几秒钟，并开发用于显示和分析数据的技术。 （3）继续使用来自高分辨率W波段多普勒雷达的数据并开发分析技术，该技术绘制了龙卷风和沿透明空气表面边界的多普勒速度风和反射率场，并沿着对流风暴可能形成。 （4）继续与雷达工程师合作，他们正在开发使用“间隔天线”中绘制二维风场和对流风暴中的降水场的技术。