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Mesoscale Convective Systems and the Atmospheric Boundary Layer

Mesoscale Convective Systems and the Atmospheric Boundary Layer
中尺度对流系统和大气边界层
批准号:
9013112
负责人:
Richard Johnson
金额:
$46.35万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1990
资助国家:
美国
项目状态:
已结题
起止时间:
1990-11-15 至 1994-04-30

项目摘要

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中文摘要
翻译
有组织的雷暴集合称为中尺度 对流系统已经被确定为大多数 年期间热带和中纬度地区的降雨量 春天夏天和秋天 首席研究员将继续他的研究 为了更好地了解中尺度对流系统 (MCS)和大气边界层。 此前,NSF 赞助的研究,首席研究员产生了许多 重要的新发现。 其中包括确定 造成MCSs几个显著特征的因素。 这项研究将继续进行, 和数字建模组件。 重点将放在: 1. 低气压区的动力学, MCS,被称为“尾流低点” 2. 中尺度涡旋的形成机制 的MCS。 这些稳定的漩涡被认为是 未来几轮恶劣天气的机制, 原来的MCS已经消散了 3. 控制因素的系列MCS,往往是 造成了严重的降雨事件 如果成功,这项研究可以用来更好地开发 预报严重MCS的数值和概念模式 天气事件
英文摘要
Organized collections of thunderstorms known as mesoscale convective systems have been identified as producers of most of the rainfall in the tropics and in mid-latitudes during the spring, summer and fall. The Principal Investigator will continue his research towards an improved understanding of mesoscale convective systems (MCSs) and the atmospheric boundary layer. Under previously NSF sponsored research the Principal Investigator produced many significant new findings. Among these are the identification of the factors responsible for several distinctive features of MCSs. This line of research will continue with both observational and numerical modeling components. Emphasis will be placed on: 1. The dynamics of a region of low pressure which often trails MCSs, known as "wake lows" 2. The formation mechanisms of mesoscale vortices which form out of MCSs. These stable vortices are believed to be a triggering mechanism for future rounds of severe weather several hours after the original MCS has dissipated. 3. The controlling factors for series of MCSs which are often responsible for severe rain events. If successful, this research can be used to develop better numerical and conceptual models for the forecasting of severe MCS weather events.
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Studies of the Maritime Atmospheric Boundary Layer during DYNAMO
  • 批准号:
    1853633
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $62.66万
  • 财政年份:
    2019
  • 负责人:
    Richard Johnson
  • 依托单位:
Studies of Madden-Julian Oscillation (MJO) Initiation Using Atmospheric Sounding Data
  • 批准号:
    1360237
  • 项目类别:
    Standard Grant
  • 资助金额:
    $75.6万
  • 财政年份:
    2014
  • 负责人:
    Richard Johnson
  • 依托单位:
Atmospheric Sounding Network in the Dynamics of the Madden-Julian Oscillation Project (DYNAMO)
  • 批准号:
    1059899
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $65.54万
  • 财政年份:
    2011
  • 负责人:
    Richard Johnson
  • 依托单位:
Heavy Rainfall Mechanisms During the 2008 Terrain-influenced Monsoon Rainfall Experiment (TiMREX)
  • 批准号:
    0966758
  • 项目类别:
    Standard Grant
  • 资助金额:
    $55.5万
  • 财政年份:
    2010
  • 负责人:
    Richard Johnson
  • 依托单位:
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