Acquisition of a Three Dimensional Lightning Channel Mapping Network for the Houston, Texas Area

为德克萨斯州休斯顿地区购买三维闪电通道测绘网络

基本信息

  • 批准号:
    0321052
  • 负责人:
  • 金额:
    $ 38.25万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2003
  • 资助国家:
    美国
  • 起止时间:
    2003-09-01 至 2005-12-31
  • 项目状态:
    已结题

项目摘要

This grant supports the acquisition, installation, and initial operation of a 12-station Lightning Detection and Ranging (LDAR) network to map the paths of lightning flashes in the Houston area. Each station receives the VHF signal emitted by lightning with high-resolution GPS timing. The paths of the lightning strokes are then determined by triangulation. The LDAR is a commercial version of the lightning mapping array (LMA) originally developed by researchers at New Mexico Institute of Mining and Technology under NSF support. An LDAR network in Houston will lay the groundwork for an extensive study of what appears to be an anomalously high amount of lightning activity in that area. Data on cloud-to-ground lightning flashes from the National Lightning Detection Network for the past decade indicate a considerably higher flash density over Houston than over the nearby surrounding area. Speculation is that it may be related to the high level of atmospheric pollution over Houston, which could affect cloud microphysics and the charging mechanism, or that it may only be associated with the urban heat island. The LDAR network, in connection with existing and planned radar, airborne, and surface observations, will document the lightning in great detail and provide the information needed to test various hypotheses that explain the anomaly. The work not only contributes to the physics of lightning, but also advances the understanding of weather hazards.
这笔赠款支持购买、安装和初步运行一个由12个站点组成的闪电探测和测距(LDAR)网络,以绘制休斯顿地区闪电的路径。每个站点接收闪电发出的VHF信号,并提供高分辨率的GPS授时。然后,通过三角测量来确定闪电的路径。激光雷达是闪电测绘阵列(LMA)的商业版本,最初是在NSF的支持下由新墨西哥矿业与技术研究所的研究人员开发的。休斯敦的一个激光雷达网络将为广泛研究该地区似乎异常高的闪电活动奠定基础。来自国家闪电探测网络的过去十年的云对地闪电数据表明,休斯顿上空的闪电密度比附近地区高得多。外界猜测,这可能与休斯敦上空的高水平大气污染有关,这可能会影响云微物理和充电机制,也可能只与城市热岛有关。激光雷达网络,结合现有的和计划中的雷达、机载和地面观测,将非常详细地记录闪电,并提供必要的信息,以测试解释异常的各种假设。这项工作不仅对闪电的物理学做出了贡献,还促进了对天气危害的理解。

项目成果

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Richard Orville其他文献

Richard Orville的其他文献

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{{ truncateString('Richard Orville', 18)}}的其他基金

Collaborative Research: High-Speed Slitless Spectroscopy Studies of Natural Lightning Flashes
合作研究:自然闪电的高速无缝光谱研究
  • 批准号:
    1745933
  • 财政年份:
    2018
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
Collaborative Research: Lightning Studies in a Polluted Atmosphere
合作研究:污染大气中的闪电研究
  • 批准号:
    1523325
  • 财政年份:
    2015
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
Digital High-Speed Spectroscopic Recordings in the Upward Lightning Triggering Study (UPLIGHTS)
向上闪电触发研究 (UPLIGHTS) 中的数字高速光谱记录
  • 批准号:
    1251755
  • 财政年份:
    2013
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
Lightning Detection And Ranging (LDAR II) Network Operation and Analyses Over a Highly Polluted City - Houston, Texas
高度污染城市的闪电探测和测距 (LDAR II) 网络运行和分析 - 德克萨斯州休斯顿
  • 批准号:
    0849389
  • 财政年份:
    2009
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
Digital High-Speed Spectroscopic Lightning Studies
数字高速光谱闪电研究
  • 批准号:
    0813672
  • 财政年份:
    2008
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
Lightning Detection And Ranging (LDAR II) Operation, Evaluation, and Analyses in the Houston Environmental Aerosol Thunderstorm (HEAT) Project
休斯顿环境气溶胶雷暴 (HEAT) 项目中的闪电探测和测距 (LDAR II) 操作、评估和分析
  • 批准号:
    0442011
  • 财政年份:
    2005
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
Enlightening Lightning! Coupling Earth Systems Research to K-12 Education Using Planetarium Presentations
启蒙闪电!
  • 批准号:
    0224555
  • 财政年份:
    2002
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
Physical and Meteorological Characteristics Associated with Lightning Ground Flashes: The National Lightning Detection Network and the Canadian Lightning Detection Network
与闪电地闪相关的物理和气象特征:国家闪电探测网络和加拿大闪电探测网络
  • 批准号:
    0119476
  • 财政年份:
    2001
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
The Physical and Meteorological Characteristics Associated with Lightning Flashes
与闪电相关的物理和气象特征
  • 批准号:
    9806189
  • 财政年份:
    1998
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Continuing Grant
Lightning Flash Measurements in the TOGA COARE Program
TOGA COARE 计划中的闪电测量
  • 批准号:
    9527935
  • 财政年份:
    1996
  • 资助金额:
    $ 38.25万
  • 项目类别:
    Standard Grant

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