| 渤海B1断面夏季温盐结构及变化趋势 |
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| 引用本文： | 贾瑞丽,苏洁,胡宪敏,曹勇.渤海B1断面夏季温盐结构及变化趋势[J].中国海洋大学学报(自然科学版),2008,38(5). |
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| 作者姓名： | 贾瑞丽 苏洁 胡宪敏 曹勇 |
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| 作者单位： | 1. 国家海洋局北海信息中心,山东,青岛,266033
2. 中国海洋大学物理海洋重点实验室,山东,青岛,266100 |
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| 摘 要： | 采用特征量和线性拟合的方法,对1976～2003年8月的B1断面温盐调查资料进行分析.结果表明:夏季渤海暖水深入沿岸两端及渤海中部,深水处具有南北2个冷水区,形成冷、暖水体并存的分布特征.渤海夏季温度场结构分布是多种海洋物理环境要素的综合影响所致,太阳辐射和地形是基本原因之一,北黄海冷水侵入是冷暖水区维持的重要原因.冷水区多年温度有正变化率,温度变化正距平的信号来自大气气候变暖;而渤海中部高温水体则具有负变化率,温度变化负距平的信号来自北黄海次表层温度的变化,可能与北黄海冷水侵入渤海有关.夏季近岸盐度低,底层盐度高.盐度多年变化以正变率为主,造成岸边盐度升值明显的主要原因是河流入海淡水量的减少和工业污染.
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| 关 键 词： | 断面 海温 盐度 特征量 温盐结构 变化趋势 |
Structure of Temperature and Salinity and Its Variation Along B1 Section During Summer |
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| JIA Rui-Li,SU Jie,HU Xian-Min,CAO Yong.Structure of Temperature and Salinity and Its Variation Along B1 Section During Summer[J].Periodical of Ocean University of China,2008,38(5). |
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| Authors: | JIA Rui-Li SU Jie HU Xian-Min CAO Yong |
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| Institution: | JIA Rui-Li1,SU Jie2,HU Xian-Min2,CAO Yong2(1.North China Sea Data Information Service SOA,Qingdao 266033,China,2.Laboratory of Physical Oceanoraphy,Ocean University of China,Qingdao 266100,China) |
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| Abstract: | Based on temperature and salinity observed along section B1 in August from 1976 to 2003,structure of temperature and salinity and their variations are analyzed by using the methods of characteristic index and linear regression analysis.Results showed that: 1) Temperature at the two ends of coast and middle part was high in surface layer along the section B1;Two cold center were located in south and north of this section separated by a warm part of water in the Bohai Sea.2) Cold centers showed positive rate ... |
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| Keywords: | section sea temperature salinity characteristic index structure of temperature and salinity variation trend |
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