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Method and apparatus for the nowcast of lightning threat using polarimetric radar

机译:使用极化雷达临近预报雷电威胁的方法和装置

摘要

A system and method for predicting the probability of cloud-to-ground lightning strikes, ‘frequent’, more than 2 strikes per minute on average, cloud to ground lightning strikes, and/or ‘numerous’, more than 4 strikes per minute on average, through the use of polarimetric radar is presented. The data volume created by the polarimetric radar is processed to identify the type of hydrometeors in each range cell. For each vertical column, the maximum height of the graupel is compared to the lowest height of ice crystals in the volume. In the event that the lowest height of ice crystals is ambiguous, the height of the temperature where ice crystals form, −10° C., may be substituted for the lowest height of the ice crystals. Probability density functions are applied to the height difference to determine the probability of cloud to ground lightning within the column. Lightning probability product data are displayed on a visualization system in a georeferenced manner providing georeferenced lightning warnings. A forecast of the probabilities of cloud-to-ground lightning is determined by simple translation using storm track properties.
机译:一种用于预测“对地”雷击的概率的系统和方法,“频繁”,平均每分钟雷击2次以上;对地雷击和/或“无数”雷击的概率,每分钟雷击平均4次以上平均而言,通过使用极化雷达进行了介绍。处理由极化雷达创建的数据量,以识别每个测距单元中水凝物的类型。对于每个垂直列,将up的最大高度与体积中冰晶的最低高度进行比较。在冰晶的最低高度不明确的情况下,冰晶形成的温度的最高温度-10℃可以代替冰晶的最低高度。将概率密度函数应用于高度差,以确定云对圆柱内地面闪电的概率。雷电概率产品数据以地理定位方式显示在可视化系统上,提供地理定位的雷电警告。通过使用风暴轨迹属性的简单转换,可以确定对云对地闪电的可能性的预测。

著录项

  • 公开/公告号US8432306B2

    专利类型

  • 公开/公告日2013-04-30

    原文格式PDF

  • 申请/专利权人 JAMES J. STAGLIANO JR.;

    申请/专利号US20100905762

  • 发明设计人 JAMES J. STAGLIANO JR.;

    申请日2010-10-15

  • 分类号G01S13;

  • 国家 US

  • 入库时间 2022-08-21 16:43:51

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