| 摘要: |
| 利用1960～1999年月平均海表温度资料和大气低层风场资料，分析了南海海表温度与局地风场之间的关系及其季节变化特征，讨论了局地风场对南海海温的影响与季风的联系。结果表明，南海海表温度异常与局地风场异常之间的关系具有明显的季节变化特征，南海海表温度异常在夏季与纬向风异常呈明显的负相关，在冬季与经向风异常呈明显的正相关，这种季节变化与东亚季风特性（即盛行风存在明显的季节变化）密切相关。为南海海表温度监测预测提供气候背景，从而也解释了过去在大气低层风速与南海海表温度异常相关性方面不同研究结果存在差异的原因。 |
| 关键词: 南海海温 风场 季风 |
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| 基金项目:国家自然科学基金项目（40675055）；广东省科技计划项目（2005B32601007）；广东省自然科学基金项目（04003915） |
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| The impact of atmospheric wind at low level on sea surface temperature over the South China Sea and its relationship to monsoon |
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| Abstract: |
| Relationship between sea surface temperature over the South China Sea, local wind field and its seasonal variation characteristics was analysed by using the monthly data of sea surface temperature and atmospheric wind at 850 hPa during 1960～1999. And the impact of local wind field on sea surface temperature and its relationship to monsoon are discussed. It was shown that the correlation between sea surface temperature over the South China Sea and local wind changes with different seasons. Sea surface temperature over the South China Sea is correlated negatively with zonal wind in summer, while it is correlated positively with meridional wind in winter. The seasonal variation of correlation is related closely to the characteristics of East Asia monsoon (e.g. wind changes with season). The conclusion above provides a climatic background for monitor and forecast of sea surface temperature over the South China Sea, and also gives a explanation to why the conclusions between different works are contrary concerning the relativity of sea surface temperature over the South China Sea and local wind. |
| Key words: sea surface temperature over the South China Sea atmospheric wind monsoon |
