레이더 자료를 이용한 호남지방의 국지강수변화에 관한 수치연구

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The weather hazard by worldwide global warming rapidly increases year by year, and the damage becomes also enormous. especially, the damage by the random local severe rain in Korea is conspicuous.
The forecast is difficult, because the random local severe rain arises by the complicated mechanism. However, local weather field in the Honam district where the weather hazard arises well is accurately grasped, and the systems that predict the local severe rain early are necessary.
The purpose of this research is development of radar data assimilation observed at Jindo S-band radar. The accurate observational data assimilation system is required for meteorological numerical prediction of the region scale. Diagnostic analysis system LAPS(Local Analysis and Prediction System) developed by US FSL(Forecast Systems Laboratory) is adopted assimilation system of the Honam district forecasting system.
The LAPS system was adjusted in calculation environment in the Honam district. And the improvement in the predictability by the application of the LAPS system was confirmed by the experiment applied to Honam district local severe rain case of generating 22 July 2003.
Processed data was applied to HR2PS(Honam Regional High Resolution Prediction System) and the influence of processed data from LAPS on weather forecasting was examined.
The results are as follows:
1) Precipitation amounts of Gwangju is strong associated with the strong in lower level from analysis of aerological data. This indicated the circulation field especially, 850 hPa layer, acts important role to precipitation in Homan area.
2) Wind in coastal area tends to be stronger than inland area and radar data show the strong wind in conversions zone around front.
3) Radar data assimilation make the precipitation area be extended and maximum amount of precipitation be smaller.
4) In respect to contribution rate of different height wind field on precipitation variation, radar data assimilation of upper level is smaller the that of lower level.
Alternative Title
Numerical Study on Variation of Local Precipitation in Honam District due to Radar Data Assimilation
Alternative Author(s)
Park, Geun-Yeong
조선대학교 대학원
일반대학원 대기과학과
Awarded Date
Table Of Contents
List of Tables = ⅰ
List of Figures = ⅱ
Ⅰ. 서론 = 1
Ⅱ. 레이더개요 = 3
A. 기상레이더의 발전 = 3
B. 기상청 레이더의 보유현황 = 4
1. 레이더의 동작원리 = 7
2. 레이더의 영상분석 = 8
3. 호남지방 집중호우와 하층제트와의 관계 = 14
Ⅲ. 수치 모형 (MM5) = 16
A. MM5의 좌표계 = 17
B. MM5의 물리 과정 = 17
C. 레이더 자료동화 = 19
Ⅳ. 관측자료분석 = 30
A. 지상 일기도분석 = 30
B. 바람장 분석 = 37
Ⅴ. 수치 실험 설계 = 39
A. 대상 지역 = 39
1. 호남지방의 지형 특성 = 39
2. 호남지방의 기후 및 호우 특성 = 40
B. 계산 설계 = 42
1. 레이더해석 및 수치실험설계 = 42
Ⅵ. 결론 = 58
References = 60
조선대학교 대학원
박근영. (2004). 레이더 자료를 이용한 호남지방의 국지강수변화에 관한 수치연구.
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General Graduate School > 3. Theses(Master)
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