Abstract
AbstractLightning activity changes greatly on temporal and spatial scales. The data from Lightning Imaging Sensor, boarded on the Tropical Rainfall Measurement Mission (TRMM) Satellite, are used to study the lightning activities in several typical regions of the world. It is found that great differences exist in different regions for flash frequency and flash intensity. The flash frequency on oceans is tens to hundred times smaller than on continents. The number difference of lightning activity in different regions is caused by not only flash days but also flash frequency in an individual thunderstorm of a region. The discharge intensity shows a decreasing tendency with the increase of flash number in different regions. Further studies show that the difference of flash optical radiance in different regions can be interpreted by the local Convective Available Potential Energy (ECAPE). The optical radiance of flash is linearly related to the ECAPE value for different regions, but no obviously correlation has been found between the flash frequency and the ECAPE value.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
