| 与南沙深水区温跃层有关的海水平均温度的分布特征 |
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| 引用本文： | 邱章,蔡树群.与南沙深水区温跃层有关的海水平均温度的分布特征[J].热带海洋学报,2000,19(4):10-14. |
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| 作者姓名： | 邱章 蔡树群 |
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| 作者单位： | 中国科学院南海海洋研究所,广东,广州,510301 |
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| 基金项目： | 国家科技专项南沙项目水体层化专题资助项目 (97-92 6-0 5 -0 2 )，国家自然科学基金资助项目
(4 99760 0 2 ) |
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| 摘 要： | 在确定温跃层三要素 (深度 (上界深度 )、厚度和强度 )及测站温度垂直最大梯度的基础上 ,分别计算了南沙深水测站 (水深大于 1 0 0 0m)在温跃层上界深度层范围内的平均温度、在温跃层下界深度以下自 3 0 0m层至 80 0m层之间的平均温度。分析表明 ,在温跃层上界深度范围内 ,海水平均温度的水平分布明显显示出低温海水自南沙的西北部向东南部缓慢推进之势 ,似是东北季风驱动的结果。温度垂直梯度越大 ,它在垂直方向上阻碍上层海水的热量往深层扩散的能力就越强。
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| 关 键 词： | :温跃层 低温海水 垂向热扩散 |
| 修稿时间： | 1999-10-29 |
DISTRIBUTION CHARACTERISTICS OF MEAN SEA TEMPERATURE RELATIVE TO THERMOCLINE IN DEEP WATER OF NANSHA ISLANDS SEA AREA |
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| QIU Zhang,CAI Shu-qun.DISTRIBUTION CHARACTERISTICS OF MEAN SEA TEMPERATURE RELATIVE TO THERMOCLINE IN DEEP WATER OF NANSHA ISLANDS SEA AREA[J].Journal of Tropical Oceanography,2000,19(4):10-14. |
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| Authors: | QIU Zhang CAI Shu-qun |
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| Abstract: | Based on the determination of three factors (depth,thickness and intensity) of thermocline and vertical maximum gradient of temperature at each observation station,the mean sea temperature within the depth of thermocline and the mean sea temperature between the depth of 300m and 800m below the lower boundary of thermocline were computed and analyzed respectively. The results showed that in winter the mean sea temperature within the depth of thermocline was low in the northwestern waters of Nansha Islands sea area and rised slowly southeastward,which seems to be driven by the northeast monsoon. The greater the vertical maximum gradient is,the more powerful its capability to block vertical heat diffusion from upper water layer to deep water layer. |
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| Keywords: | thermocline low temperature seawater vertical diffusion of heat |
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