| 不同时间尺度系统对热带太平洋海-气潜热通量贡献的估计 |
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| 引用本文： | 孙即霖,杨绪君.不同时间尺度系统对热带太平洋海-气潜热通量贡献的估计[J].热带海洋学报,2004,23(6):75-81. |
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| 作者姓名： | 孙即霖 杨绪君 |
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| 作者单位： | 中国海洋大学物理海洋教育部重点实验室海气相互作用和气候变化实验室,山东,青岛,266003 |
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| 基金项目： | 国家自然科学重点基金项目(40136010) |
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| 摘 要： | 对热带太平洋不同尺度系统对海洋大气之间潜热通量的贡献进行了计算分析。分析使用了Launianen和Vihma(1990)依据相似理论编写的计算软件和TOGA-TAO观测资料。通过分析发现，小尺度系统对热量通量没有太多的影响；天气尺度系统在赤道西太平洋对热量通量的影响较大；天气尺度系统对热量通量的贡献在赤道外地区要比在赤道地区大。分析还发现，在厄尔尼诺年赤道中太平洋地区天气尺度系统对热量通量的贡献较大，这意味着赤道中太平洋天气尺度系统的活动对触发厄尔尼诺事件可能具有重要的影响。
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| 关 键 词： | 不同尺度系统 热带太平洋 热量通量 |
| 文章编号： | 1009-5470(2004)06-0075-07 |
| 修稿时间： | 2004年4月24日 |
ESTIMATING CONTRIBUTIONS OF SYSTEMS WITH DIFFERENT TIME SCALE TO LATENT HEAT FLUXES OVER TROPICAL PACIFIC OCEAN |
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| SUN Ji-lin,YANG Xu-junation,Ocean University of China,Qingdao ,China.ESTIMATING CONTRIBUTIONS OF SYSTEMS WITH DIFFERENT TIME SCALE TO LATENT HEAT FLUXES OVER TROPICAL PACIFIC OCEAN[J].Journal of Tropical Oceanography,2004,23(6):75-81. |
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| Authors: | SUN Ji-lin YANG Xu-junation Ocean University of China Qingdao China |
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| Institution: | SUN Ji-lin,YANG Xu-junation,Ocean University of China,Qingdao 266003,China) |
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| Abstract: | The software made by J.Launianen and T.Vihma (1990) based on similarity theory and observations by TOGA-TAO is used to estimate the contributions of systems with different time scale to the latent and sensible heat fluxes from ocean to atmosphere over the tropical Pacific Ocean. It is found that the systems with time scale of hours contribute little to the heat fluxes; however, the systems with synoptic time scale have a greater impact on the heat fluxes in the western equatorial Pacific and contribute more to the heat fluxes in off equatorial areas than in the tropics. It is also found that the synoptic scale systems contribute more to the heat fluxes during the El Nio years in the central equatorial Pacific, implying that the activities of synoptic scale systems there may have a important impact on the onset of El Nio events. |
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| Keywords: | system with different time scale tropical Pacific Ocean heat flux |
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