Cloud-to-ground lightning characteristics over Houston, Texas: 1989-2000

Characteristics of Hurricane Ike During Its Passage over Houston, Texas

Positive and Negative Cloud-to Ground Lightning*

Positive cloud-to ground lightning (+ CGL) occurs in a minor fraction of all thunderstorms [1]. We propose that the microscopic mechanism is the same as in the more common negative CGL, whereas the different polarity is due to the macroscopic cloud dynamics [2]. The origin of collisional charging involves three stages in the basic process [3]. In the first stage kinetic roughening of the surfac...

Cloud-to-ground Lightning and Urban Areas

The effect of small urban areas on cloud-to-ground (CG) lightning activity is analysed for Spain. The results shown that the CG-flash number is enhanced within and downwind the most of towns considered and that large population and higher SO2 concentration contribute to the increase of the number of CG-flashes. INTRODUCTION AND DATA Several studies have reported that large cities of the USA are...

Characteristics of Sprite-Producing Positive Cloud-to-Ground Lightning during the 19 July 2000 STEPS Mesoscale Convective Systems

During the summer of 2000, the Severe Thunderstorm Electrification and Precipitation Study (STEPS) program deployed a three-dimensional Lightning Mapping Array (LMA) near Goodland, Kansas. Video confirmation of sprites triggered by lightning within storms traversing the LMA domain were coordinated with extremely low frequency (ELF) transient measurements in Rhode Island and North Carolina. Two ...

Characteristics of cloud-to-ground lightning activity over Seoul, South Korea in relation to an urban effect

Cloud-to-ground (CG) lightning flash data collected by the lightning detection network installed at the Korean Meteorological Administration (KMA) have been used to study the urban effect on lightning activity over and around Seoul, the largest metropolitan city of South Korea, for the period of 1989–1999. Negative and positive flash density and the percentage of positive flashes have been calc...