| Effects of the Indo-China Peninsula Heat Fluxes on the 1998 South China Sea Summer Monsoon |
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| 作者姓名： | SHI Xueli Johnny C. L. CHAN K. C. CHOW DING Yihui |
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| 作者单位： | National Climate Center Beijing 100081，Laboratory for Atmospheric Research Department of Physics and Materials Science City University of Hongkong，Hongkong，Laboratory for Atmospheric Research Department of Physics and Materials Science City University of Hongkong，Hongkong，National Climate Center Beijing 100081 |
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| 基金项目： | This research was jointly supported by the Research Grants Council of the Hongkong Special Administrative Region Governmentof China Grant CityU 2/00C and the China NSFC Project 90411007. |
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| 摘 要： | 1. IntroductionBecause the South China Sea (SCS) is one of theregions where the Asian summer monsoon onset oc-curs earliest, the SCS summer monsoon (SCSSM) hasalways been a research focus, especially in recent yearswith the implementation of the SCS Monsoon Exper-iment (SCSMEX) (e.g., Tao and Chen, 1987; Changand Chen, 1995; Lau et al., 2000; Ding and Li, 1999;Ding and Liu, 2001; Li and Wu, 2000; Xie et al., 1998;Zhang et al., 2004). Climatologically, the SCSSM on-set is a rem…
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| 收稿时间： | 2005/5/13 0:00:00 |
| 修稿时间： | 2005/9/14 0:00:00 |
Effects of the Indo-China Peninsula Heat Fluxes on the 1998 South China Sea Summer Monsoon |
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| SHI Xueli,Johnny C. L. CHAN,K. C. CHOW,DING Yihui.Effects of the Indo-China Peninsula Heat Fluxes on the 1998 South China Sea Summer Monsoon[J].Acta Meteorologica Sinica,2005,19(4):457-468. |
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| Authors: | SHI Xueli Johnny C L CHAN K C CHOW DING Yihui |
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| Institution: | National Climate Center, Beijing 100081 Laboratory for Atmospheric Research, Department of Physics and Materials Science, City University of Hongkong,Hongkong Laboratory for Atmospheric Research, Department of Physics and Materials Science, City University of Hongkong,Hongkong National Climate Center, Beijing 100081 |
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| Abstract: | Sensitivity experiments to investigate the role and importance of the Indo-China Peninsula (ICP) heatfluxes (sensible and latent heat fluxes) on the South China Sea summer monsoon (SCSSM) onset and itssubsequent evolution have been carried out using a regional climate model. Two sensitivity experiments havebeen conducted: cutting off the sensible heat flux (noted as IChfx) and latent heat flux (noted as ICqfx).Results show that by cutting off the underlying heat flux of the ICP, the precipitation decreases andlow-level geopotential height increases over the local regions as well as the remote regions of the East ChinaSea, southern Japan, and western North Pacific. The westerly (easterly) zonal winds at 850 hPa (200 hPa)are generally weakened in May and June, especially before and during the onset of the SCSSM towards theend of May.It is worth noting that although the observed sensible heat flux is only about 1/3 of the latent heat flux,the differences between the control run and each of the two sensitivity experiments are comparable. |
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| Keywords: | East Asian summer monsoon South China Sea heat flux regional climate model |
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