Browse > Article
http://dx.doi.org/10.5467/JKESS.2009.30.4.464

Numerical Simulation of Local Circulation Over the Daechung Lake Area by Using the Mesoscale Model  

Byon, Jae-Young (National Institute of Meteorological Research, Korea Meteorological Administration)
Choi, Young-Jean (National Institute of Meteorological Research, Korea Meteorological Administration)
Seo, Beom-Keun (National Institute of Meteorological Research, Korea Meteorological Administration)
Publication Information
Journal of the Korean earth science society / v.30, no.4, 2009 , pp. 464-477 More about this Journal
Abstract
In this study, we examined the patterns of local circulation over the Daechung lake area through the numerical experiment designed to investigate the impact of lake on the local circulation. The results of numerical experiment showed that the surface temperature predicted by WRF model was lower than the observation, while the wind speed was stronger than the observation. The local circulation over the lake area was characterized by a lake breeze induced by a horizontal thermal contrast between the lake surface and the Surrounding land. At Daecheong Lake, a lake breeze formed at 09 LST and dissipated at 18 LST, with maximum intensity at 15 LST. The vertical extent of the simulated circulation was about 1,200 m. The specific humidity increased as the humid air above the lake moved landward due to the daytime circulation of the lake breeze. The numerical experiments of sensitivity to existence of the lake showed that the simulated surface temperature decreased in the experiment with the lake. Wind speed was more intense around the lake area when the actual land use was substituted by grassland land use. The results of numerical experiments suggest that the lake-induced lake breeze circulation has an effect on the meteorology of planetary boundary layer around the lake.
Keywords
Local circulation; lake-breeze; land-use; mesoscale model; planetary boundary layer;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 남재철, 신만용, 윤진일, 1995, 매기상자료에 의한 안동지역 인공호 주변 안개발생판별. 한국기상학회지, 31, 393-398
2 이종범, 1981, 춘천지방의 인공호에 의한 안개 및 운량의 변화, 한국기상학회지, 17, 18-26
3 홍성길, 1982, 안동댐 건설이후 안동지방의 안개증가. 한국기상학회지, 18, 26-32
4 Dudhia, J., 1989, Numerical study of convection observed during the winter monsoon experiment using a mesoscale two-dimensional model. Journal of Atmospheric Sciences, 46, 3077-3107   DOI
5 Hong, S.-Y. and Pan H.-L., 1996, Nonlocal boundary layer vertical diffusion in a medium-range forecast model. Monthly Weather Review, 124,2322-2339   DOI   ScienceOn
6 Kain, J.S., 2004, The Kain-Fritsch convective parameterization: An update. Journal of Applied Meteorology, 43, 170-181   DOI   ScienceOn
7 Hong, S.-Y. and Lim J.-O.J., 2006, The WRF singlemoment 6-class microphysics scheme (WSM6). Journal of Korean Meteorological Society, 42, 129-151
8 소선섭, 양문석, 1993, 충주댐 건설전후 충주지방의 안개변화 특성. 공주사범대학과학교육연구, 25, 179-199
9 Mlawer, E.J., Taubman S.J., Brown P.D., Iacono M.J., and Clough SA, 1997, Radiative transfer for inhomogeneous atmosphere: RRTM, a validated correlated-K model for the longwave. Journal of Geophysical Research, 102, 16663-16682   DOI
10 박순응, 김준호, 이종범, 이태영, 1993, 수력발전소 건설전후의 미기상학적 기후변화연구. 한국전력공사 기술연구원, KRC-90C-T05, 589 p
11 Stull, R.B., 1988, An introduction to boundary layer meteorology. Kluwer Academic Publishers, Dordrecht, Netherlands, 666 p
12 윤진일, 황규홍, 정현향, 신만용, 임준택, 신진철, 1997, 주암 다목적댐 건설에 따른 국지기후 변화가 농작물 생산성에 미치는 영향. 한국기상학회지, 33, 409-427
13 Chen, F. and Dudhia, J., 2001, Coupling an advanced landsurfacelhydrology model with the Penn StatelNCAR MM5 modeling system. Part I: Model implementation and sensitivity. Monthly Weather Review, 129, 569-585   DOI   ScienceOn