Seasonal variation of the double diffusion processes at the Strait of Hormuz     

AZIZPOUR Jafar  CHEGINI Vahi  SIADATMOUSAVI Seyed Mostafa 《海洋学报(英文版)》2017,36(1):26-34

Profiles of salinity and temperature were measured in the strait of Hormuz (SH) during the winter of 2012, spring and summer of 2013. To investigate the double diffusion (DD) processes, Turner (TU) angle values are calculated in all the stations in the SH. Different TU angle values correspond to salt fingering (SF), diffusive convection (DC) and stable stratification. The distributions of the two forms of DD were plotted vertically along transects in the eastern, central and western part of the SH, and corresponding DD processes were described. The results show that both SF and DC occurred in most part of the study area. Two different water masses (the Indian Ocean surface water and the Persian Gulf water) were evident at the SH, and SF and DC were evident at the interface of two water masses. Due to evaporation, SF occurred in the surface layer of most Stations throughout the year. In the eastern part of the SH, occurrences of DC were more feasible in wintertime. SF was the main phenomenon at the end of hot season. For central part, SF occurred throughout the year in water column. In the western part, water column was stable in summer and DC happened in most part of water column in winter.  相似文献   

台湾海峡中、北部海域春、夏季水团分析   总被引：13，自引：2，他引：13  

翁学传  张启龙  颜廷壮  王从敏  梁红星 《海洋与湖沼》1992,23(3):235-244

本文依据1983,1984,1987,1988几年的有关资料,利用“对应分析法”对台湾海峡中、北部海域春、夏季(5—8月)的水团及有关问题进行了分析。结果表明:(1)5—8月间该海域存在两种水团分布类型,其中5月属冬季型,全海域存在浙闽沿岸水和海峡暖流水两个水团;6—8月属夏季型,全海域均为海峡暖流水盘踞,按温度不同,它又分为上层水和深层水两部分。(2)浙闽沿岸水具低温、低盐、高溶解氧特征,均一性较差,年际变异较大;海峡暖流水以高盐为主要特征,温、盐度和溶解氧分布较均匀,且诸特征相对稳定。(3)海峡东、西两侧均存在上升流现象,西侧的上升流出现于6—8月,中心在海潭岛附近;东侧的上升流7月见于澎湖群岛北方海区。(4)6—8月间,海峡暖流深层水(核心)主要沿海峡偏西一侧北上,而不是紧靠东侧径直向北。  相似文献