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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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In this study, the impacts of land surface conditions, land cover (LC) map and leaf area index (LAI), on the short-range weather forecast over the East-Asian region were examined using Unified Model (UM) coupled with the MOSES 2.2 (Met-Office Surface Exchange Scheme). Four types of experiments were performed at 12-km horizontal resolution with 38 vertical layers for two months, July and August 2009 through consecutive reruns of 72-hour every 12 hours, 00 and 12 UTC. The control experiment (CTRL) uses the original IGBP (International Geosphere-Biosphere Programme) LC map and old MODIS (MODerate resolution Imaging Spectroradiometer) LAI, the new LAI experiment (NLAI) uses improved monthly MODIS LAI. The new LC experiment (NLCE) uses KLC_v2 (Kongju National Univ. land cover), and the new land surface experiment (NLSE) uses KLC_v2 and new LAI. The reduced albedo and increased roughness length over southern part of China caused by the increased broadleaf fraction resulted in increase of land surface temperature (LST), air temperature, and sensible heat flux (SHF). Whereas, the LST and SHF over south-eastern part of Russia is decreased by the decreased needleleaf fraction and increased albedo. The changed wind speed induced by the LC and LAI changes also contribute the LST distribution through the change of vertical mixing and advection. The improvement of LC and LAI data clearly reduced the systematic underestimation of air temperature over South Korea. Whereas, the impacts of LC and LAI conditions on the simulation skills of precipitation are not systematic. In general, the impacts of LC changes on the short range forecast are more significant than that of LAI changes.
목차
Abstract
1. 서론
2. 자료 및 연구 방법
3. 결과
4. 요약 및 결론
감사의 글
참고문헌
참고문헌 (27)
참고문헌 신청
1. [학술지(정기간행물)] - Case, J. L. / 2008 / Impacts of high-resolution land surface initialization on regional sensible weather forecasts from the WRF model / J. Hydrometeor 9 : 1249 ~ 1266
2. [학술지(정기간행물)] - Charney, J. G. / 1975 / Dynamics of deserts and drought in the Sahel / Quart. J. Roy. Meteor. Soc 101 : 193 ~ 202
3. [학술지(정기간행물)] - Chase, T. N / 2000 / Simulated impacts of historical land cover changes on global climate in northern winter / Climate Dyn 16 : 93 ~ 105
4. [보고서] - Cox, P. M / 2001 / Description of the TRIFFID dynamic global vegetation model. Technical Note 24
5. [학술지(정기간행물)] - Cox, P. M. / 1999 / The impact of new land surface physics on the GCM simulations of climate and climate sensitivity / Clim. Dyn 15 : 183 ~ 203
2. [학술지(정기간행물)] - Charney, J. G. / 1975 / Dynamics of deserts and drought in the Sahel / Quart. J. Roy. Meteor. Soc 101 : 193 ~ 202
3. [학술지(정기간행물)] - Chase, T. N / 2000 / Simulated impacts of historical land cover changes on global climate in northern winter / Climate Dyn 16 : 93 ~ 105
4. [보고서] - Cox, P. M / 2001 / Description of the TRIFFID dynamic global vegetation model. Technical Note 24
5. [학술지(정기간행물)] - Cox, P. M. / 1999 / The impact of new land surface physics on the GCM simulations of climate and climate sensitivity / Clim. Dyn 15 : 183 ~ 203
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UCI(KEPA) : I410-ECN-0101-2013-453-001204933