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발표자 김대현 교수
소속 University of Washington
제목 [지환부]SEES_COLLOQUIUM(2020.11.18)-김대현 교수(University of Washington)
문의처 02-880-6497
자료 1118김대현교수.pdf [374927 byte] 자료 다운로드
시간 2020-11-18 12:00~13:00
장소 비대면 강의진행
내용요약

Title : CAPE Threshold for Lightning over the Tropical Ocean

   

Abstract : Lightning, a fascinating natural phenomenon, plays a unique role in the Earth system. From a weather point of view, lightning flashes associated with individual thunderstorms are of serious concern for public safety in many developing countries. On the global scale, lightning is a key component of the climate system and has profound impacts on the atmospheric composition through lightning produced nitrogen oxides.

In the seminar, the speaker will introduce the basic lightning physics (storm electrification mechanism) and how the state of the art numerical models that we use for climate projections represent lightning (lightning parameterization). Then the speaker will present the results of his recent work on the relationship between atmospheric instability (CAPE), the horizontal size of thunderstorms, and lightning flash rates. Implications of the results on existing lightning parameterizations will be discussed.

   

비고 https://snu-ac-kr.zoom.us/j/81908032326
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