2011年冬季南极普里兹湾及其邻近海域水文特征与水团分析
发布时间：2018-08-03 15:59
【摘要】：利用澳大利亚在南极戴维斯站施放的17头南象海豹携带的小型CTD记录器收集的2011-02—06期间的温、盐度剖面资料,研究了普里兹湾及其邻近海域冬季水文结构及其水团特征,结果表明:冬季温、盐、密度垂直结构变化显著,温度变化呈现逆温层(或双逆温层)结构,并随着海面降温和结冰析盐过程的加剧,海水上下层混合加强,逆温和盐度、密度跃层由强变弱,直至水体结构变得垂直均一;海水密度变化则主要取决于盐度。研究海域共有7个水团组成,它们是普里兹湾表层水、普里兹湾次表层水、普里兹湾陆架水、普里兹湾冰架水和普里兹湾底层水,以及南极绕极深层水和逆温跃层水等,并给出了各个水团的特征指标。
[Abstract]:Using the temperature and salinity profile data collected from a small CTD recorder carried by 17 southern elephant seals at Davis Station, Antarctica, during 2011-02-06, the winter hydrological structure and water mass characteristics of the Prydz Bay and its adjacent sea areas were studied. The results showed that the vertical structure of temperature, salt and density changed significantly in winter, and the temperature change presented the structure of inversion layer (or double inversion layer). The density cline changes from strong to weak, until the water structure becomes vertical homogenization, and the variation of seawater density mainly depends on salinity. The study area consists of seven water masses, namely, the Prydz Bay surface water, the Prydz Bay subsurface water, the Prydz Bay shelf water, the Prydz Bay ice shelf water and the Prydz Bay bottom water, as well as the Antarctic circumpolar deep layer water and the reverse thermocline water, The characteristic indexes of each water mass are given.
【作者单位】： 中国海洋大学;上海海洋大学;国家海洋局第二海洋研究所;卫星海洋环境动力学国家重点实验室;
【基金】：南北极环境综合考察与评估项目——南极周边海域物理海洋和海洋气象考察(CHINARE2014-01-01) 国家科技基础性工作专项——西太平洋Argo实时海洋调查(2012FY112300)
【分类号】：P731.1
本文编号：2162245
[Abstract]:Using the temperature and salinity profile data collected from a small CTD recorder carried by 17 southern elephant seals at Davis Station, Antarctica, during 2011-02-06, the winter hydrological structure and water mass characteristics of the Prydz Bay and its adjacent sea areas were studied. The results showed that the vertical structure of temperature, salt and density changed significantly in winter, and the temperature change presented the structure of inversion layer (or double inversion layer). The density cline changes from strong to weak, until the water structure becomes vertical homogenization, and the variation of seawater density mainly depends on salinity. The study area consists of seven water masses, namely, the Prydz Bay surface water, the Prydz Bay subsurface water, the Prydz Bay shelf water, the Prydz Bay ice shelf water and the Prydz Bay bottom water, as well as the Antarctic circumpolar deep layer water and the reverse thermocline water, The characteristic indexes of each water mass are given.
【作者单位】： 中国海洋大学;上海海洋大学;国家海洋局第二海洋研究所;卫星海洋环境动力学国家重点实验室;
【基金】：南北极环境综合考察与评估项目——南极周边海域物理海洋和海洋气象考察(CHINARE2014-01-01) 国家科技基础性工作专项——西太平洋Argo实时海洋调查(2012FY112300)
【分类号】：P731.1
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