摘要
根据 1 970～ 1 996年渤海观测资料的各月平均值 ,绘制大面、38.5°N断面分布图与典型海域的季节变化图 ,进而概述渤海的温盐场特征 ,并探讨其成因 ,更好地为研究渤海环境变异提供高分辨率的平均场。研究表明 ,渤海温盐度对气候因子、径流量变化等因素响应很快 ,大约滞后 1个月左右 ,具有明显的季节特征。外强迫、岸形和地形所共同诱导的海水平均环流 ,是形成其水平分布和季节变化的决定因素之一。
Based on the survey data from 1970 to 1996 in the Bohai Sea, the distributions of hydrographic factors are plotted for the whole area and for the section of 38.5°N; also plotted are their seasonal variations in the typical areas. The characteristics of the temperature and salinity fields are summarized and the causes are analyzed, so as to provide high resolution mean fields. The study shows that water temperature and salinity in the Bohai Sea response rapidly with obvious seasonal characteristics to the variation of certain factors such as climate factors and river flow etc., with a lag time of about one month. The residual current induced by external forces, topography and the shape of seashore is critical to the horizontal distribution and seasonal variation of temperature and salinity.
出处
《青岛海洋大学学报（自然科学版）》
CSCD
北大核心
2003年第1期7-14,共8页
Journal of Ocean University of Qingdao
基金
国家自然科学基金课题 ( 49790 10 0 1)
国家重点基础研究发展规划项目 ( G19990 4 380 4 )资助
关键词
形成机制
渤海
水平分布
垂向分布
季节变化
温度场
盐度场
径流量
地形
the Bohai Sea
temperature and salinity fields
horizontal distribution
vertical distribution
seasonal variation
