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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2005.12
- 수록면
- 997 - 1,014 (18page)
이용수
초록· 키워드
Feasibility of cloud seeding experiments in the Korean Peninsula was examined in a comprehensive manner. Long term (1971-2000) precipitation records from 68 weather stations, the Korean topography, and the unavailability of a seeding aircraft suggested that winter orographic cloud seeding experiments with glaciogenic particles at some high peaks of Taebaek Mountain Ranges with target areas to the west of the mountain peaks might be a reasonable option to choose for precipitation enhancement if conditions are met. Wintertime (November-March) precipitation distribution patterns in Gangwon Province and related meteorological data at Daegwallyeong and Sokcho weather stations showed that strong easterly winds at 850 mb was a key to extend orographically generated precipitations to the west of the Taebaek Mountain peaks. The most prevalent synoptic patterns that were relevant to these precipitation distribution patterns were a low pressure system passing over south of the Korean Peninsula, invoking counter-clockwise circulation to bring prevailing easterly winds to Gangwon Province. Furthermore recent two year records of liquid water depths measured by a microwave radiometer at Daegwallyeong weather station showed the largest values during these events. Therefore it was suggested that these types of synoptic patterns with below freezing temperatures at seeding sites (mountain peaks near Daegwallyeong) might pose a good seeding potential. The Clark-Hall mesoscale model was employed to predict dispersion of glaciogenic seeding material (silver iodide) and the effect of seeding on precipitation. For the case chosen for seeding simulation, seeding start time was critical in precipitation enhancement, earlier start time producing more precipitation increase. Moreover, precipitation increase did not occur at the target area, the western slopes of the seeding site, but was limited only to the eastern side of the seeding site. These simulation results illustrate the difficulty of finding the right weather conditions and the seeding time for a successful precipitation enhancement at the target area. Nevertheless, it seems to be demonstrated that a numerical model is an economic and reliable tool to aid in establishing a good seeding strategy.
#Winter orographic seeding
#precipitation distribution and synoptic patterns
#silver iodide
#seeding potential
#Clark-Hall model
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목차
- Abstract
- 1. 서론
- 2. 인공증우(설) 실험 시기, 방법 및 지역의 선정
- 3. 실험 지역의 강수 특성
- 4. 수치모형 연구
- 5. 요약 및 결론
- 감사의 글
- 참고문헌
참고문헌
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UCI(KEPA) : I410-ECN-0101-2009-453-016238860
