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뇌우에 의한 돌풍사례 분석

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Author(s)
조은희
Issued Date
2008
Abstract
ABSTRACT

A study on the GUST with thunderstorm

In recent years, South Korea has often witnessed damages by gusts caused by thunderstorms in summer.
The Korea Meteorological Administration defines that a gust happens when the maximum instantaneous wind velocity is 10m/s or more and draws up hourly observation reports. When a cumulonimbus develops due to an ascending current and reaches the height of 12∼16km, the temperature of the cloud top drops and a lightening happens, which causes a gust accompanied by a thunderstorm and further regional meteorological damage. It's difficult to predict a regional gust with the meso-scale prediction model at the administration. Thus this study set out to analyze the damage cases by a gust accompanied by a thunderstorm and to make a contribution to the prediction and understanding of a gust by a thunderstorm.
A gust by a thunderstorm happens where potential equivalent temperature converges or is higher than the surrounding areas. The convergence area of potential equivalent temperature matches the track of thunderstorm cells. The Kimje gust took place where high potential equivalent temperature converged, and the Jangsu gust did as the area of high potential equivalent temperature approached.
There should be a good amount of vapor supply with the moisture flux converging at the bottom layer in order to bring instability. In addition, it should collide into a dry and cold atmosphere at 700hPa. The moving track at the center of the low dew point spread corresponds to that of a gust.

That is, a gust by a thunderstorm moves along the areas where potential equivalent temperature is high on the ground and the regions containing lots of vapor. The time the power of a thunderstorm is maintained depends on the influx of hot and humid air by a warm flow according to the veering of wind directions and the influx of dry and cold air at 700hPa.
Alternative Title
A Study on the Gust with Thunderstorm
Alternative Author(s)
CHO, EUN-HEE
Affiliation
일반대학원 대기과학과
Department
일반대학원 대기과학과
Advisor
류찬수
Awarded Date
2009-02
Table Of Contents
목 차
List of Tables
List of Figures
ABSTRACT
Ⅰ. 서 론
Ⅱ. 자료 및 분석과정
Ⅲ. 분석 결과
A. 전라북도 김제 돌풍사례(2008년 7월 23일) 분석
1. 개요
2. 주요 피해현황
3. 피해지역 위치
4. 피해사진
5. 기상실황
6. 종관 기상상태 분석
7. 국지일기도 분석
8. AWS 분석
9. 위성영상 MTSAT 운정온도 분석
10. MTSAT 위성 강조영상 분석
11. 레이다 강수에코 분석
12. 낙뢰영상 분석
13. 단열선도 분석
14. K-index
15. SSI
16. RDAPS 850hPa 수렴과 바람
17. RDAPS 700hPa P-velocity(hPa/hr)
18. RDAPS 500hPa 고도, 기온 및 와도
19. RDAPS 200hPa 발산장 및 jet
20. KLAPS omega and circulation
21. KLAPS 상당온위
22. KLAPS 김제 soundings
23. 김제부근 KLAPS wind shear 변화
24. 시계열자료
25. 종합 분석 결과
B. 광주지방 돌풍사례(2006년 6월 10일) 분석
1. 개요
2. 주요 피해현황
3. 일기도 분석
4. 기상실황
5. 원격탐측자료
6. AWS 수렴도
7. 운정온도
8. 500hPa vorticity
9. 단열선도
10. KLAPS omega and circulation
11. 시계열자료
12. 종합 분석 결과
C. 전라북도 장수지방 돌풍사례(2005월 7월 2일) 분석
1. 개요
2. 주요 피해현황
3. 피해사진
4. 피해지역 위치
5. 기상 실황
6. 일기도 분석
7. 원격탐측자료
8. K-Index
9. SSI
10. 상당온위(2005년 7월 1일 1500UTC)
11. 시계열자료
12. 종합 결과 분석
Ⅳ. 요약 및 결론
참고문헌
Degree
Master
Publisher
조선대학교
Citation
조은희. (2008). 뇌우에 의한 돌풍사례 분석.
Type
Dissertation
URI
https://oak.chosun.ac.kr/handle/2020.oak/7480
http://chosun.dcollection.net/common/orgView/200000237517
Appears in Collections:
General Graduate School > 3. Theses(Master)
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