http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 조구희(Kuh-Hee Cho) (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
조구희(Kuh-Hee Cho),권태영(Tae-Young Kwon) 한국기상학회 2012 대기 Vol.22 No.1
Imfluences of orographic and ocean and ocean effect/ which depend on the detailded geographic characteristics, upon winter time (December-Februrary) precipitation in the Yeongdong region are investigated. Most of precipitation events in the Yeongdong region during the wintertime are associated with moist northeasterly (coming from the northeast direction) winds and also the spatial distribution of precipitation shows a great difference between Mountain area (Daegwallyeong) and Coastal area (Gangneung). The linear correlation coefficient between the meteorogical variables obtained from NCEP/NCAR Reanalysis Data and precipitation amount meteorological variables obtained from NCEP/NCAR Reanalysis Data and precipitation amount for each precipitation type is calculated. Mountain type precipitation is domainated by northeasterly wind speed of the low level (1000hPa and 925 hPa) and characterized with more precipitation in mountain area than coastal area. However, Coastal type precipitation is affected by temperature difference between ocean and atmosphere, and characterized as follows; In the case of mountain type precipitation, the correlation coefficient between wind speed at 1000 hPa (925 hPa) and precipitation amount at Daegwallyeong is 0.60 (0.61). The correlation is statistical significant at 1% level. In the case of coastal type precipitation, the correlation coefficient of temperature difference between ocean and 925hPa (850 hPa) over the East sea area and precipitation amount at Gangneung is 0.33 (0.34). As for the mountain type preciptation, a detailed analysis was conducted in order to verify the relationship between precipitation amount at Daegwallyeong and low level wind speed data from wind profiler in Gangneung and Buoy in the East sea. The results also show the similar behavior. This result indicates that mountain type precipitation in the Yeongdong region in closely related with eastrely wind speed. Thus, the statistical analysis of the few selected meteorogical variables can be a good indicator to estimate the precipitation total in the Yeongdong region in winter time.
-
MODIS 구름 산출물을 이용한 영동대설 관련 구름 특성의 분석
안보영 ( Bo Young Ahn ),권태영 ( Tae Yong Kwon ),조구희 ( Kuh Hee Cho ),이정순 ( Jeong Soon Lee ),이규태 ( Kyu Tae Lee ) 大韓遠隔探査學會 2007 大韓遠隔探査學會誌 Vol.23 No.2
본 연구는 NASA/GSFC에서 제공하는 MODIS 구름 산출물 자료를 활용하여 국지적 현상으로 나타난 영동지역의 14개 대설 사례를 분석하였다. MODIS에 의해 특정시간에 관측된 영동지역의 구름은 운정 온도(CTT), 광학 두께(COT), 유효 입자 반경(r(e)), 업자상(CP)과 같이 구름 내 속성의 특정에 따라 A, B, C 형으로 분류하였다. 각각의 구름 형태에 대한 강수량과 구름의 속성 사이의 연관성 분석에서 COT는 A와 B형에서 상당히 높은 통계적으로 유의한 관계성을 보였으며 CTT는 A형에서만 높은 상관성을 보였다. 그렇지만, C형에서는 통계적으로 유의한 관계성이 구름의 특성물에 대해 나타나지 않았다. A형 구름은 작은 크기의 물방울과 함께 주로 낮은 층운형 구름으로 구성되어 있으며, 동해에서 종관적으로 유도된 하층 한기 이류 하에서 발생할 수 있다. B형 구름은 발달하는 적운형 구름과 관련되어 있으며, 이러한 구름은 동해상에서 발달하는 저기압 중심과 밀접하게 관련되어 있다. 그렇지만, C형 구름은 다층 구름들로써 영동대설과 직접적으로 관련된 하층 구름을 상층구름이 덮고 있어 위성 관측이 어렵다. 따라서 MODIS 구름 산출물은 영동대설의 경우에 다층 구름을 제외하고 위성 자료로부터 강수량 추정과 대설 기작을 이해하는데 도움이 될 수 있다고 결론지을 수 있다. In this study, 14 heavy snow events in Yeongdong area which are local phenomena are analyzed using MODIS cloud products provided from NASA/GSFC. The clouds of Yeongdong area at observed at specific time by MODIS are classified into A, B, C Types, based on the characteristic of cloud properties: cloud top temperature, cloud optical thickness, Effective Particle Radius, and Cloud Particle Phase. The analysis of relations between cloud properties and precipitation amount for each cloud type show that there are statistically significant correlations between Cloud Optical Thickness and precipitation amount for both A and B type and also significant correlation is found between Cloud Top Temperature and precipitation amount for A type. However, for C type there is not any significant correlations between cloud properties and precipitation amount. A-type clouds are mainly lower stratus clouds with small-size droplet, which may be formed under the low level cold advection derived synoptically in the East sea. B-type clouds are developed cumuliform clouds, which are closely related to the low pressure center developing over the East sea. On the other hand, C-type clouds are likely multi-layer clouds, which make satellite observation difficult due to covering of high clouds over low level clouds directly related with Yeongdong heavy snow. It is, therefore, concluded that MODIS cloud products may be useful except the multi-layer clouds for understanding the mechanism of heavy snow and estimating the precipitation amount from satellite data in the case of Yeongdong heavy snow.
-
권태영(Tae-Yong Kwon),함동주(Dong-Ju Ham),이정순(Jeong-Soon Lee),김삼회(Sam-Hoi Kim),조구희(Kuh-Hee Cho),김지언(Ji-Eon Kim),지준범(Joon-Bum Jee),김덕래(Deok-Rae Kim),최만규(Man-Kyu Choi),김남원(Nam-Won Kim),남궁지연(Ji Yoen Nam Gung) 한국기상학회 2006 대기 Vol.16 No.3
The Yeong-dong heavy snowfall forecast supporting system has been developed during the last several years. In order to construct the conceptual model, we have examined the characteristics of heavy snowfalls in the Yeong-dong region classified into three precipitation patterns. This system is divided into two parts: forecast and observation. The main purpose of the forecast part is to produce value-added data and to display the geography based features reprocessing the numerical model results associated with a heavy snowfall. The forecast part consists of four submenus: synoptic fields, regional fields, precipitation and snowfall, and verification. Each offers guidance tips and data related with the prediction of heavy snowfalls, which helps weather forecasters understand better their meteorological conditions. The observation portion shows data of wind profiler and snow monitoring for application to nowcasting. The heavy snowfall forecast supporting system was applied and tested to the heavy snowfall event on 28 February 2006. In the beginning stage, this event showed the characteristics of warm precipitation pattern in the wind and surface pressure fields. However, we expected later on the weak warm precipitation pattern because the center of low pressure passing through the Straits of Korea was becoming weak. It was appeared that Gangwon Short Range Prediction System simulated a small amount of precipitation in the Yeong-dong region and this result generally agrees with the observations.
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
