摘要
粤东陆架边缘水域夏季的上升流位于东沙群岛北面陆架边缘从西南向东北的带状区,以台湾浅滩西南最强烈。其年际变化较大,通常6月较弱,7月最强,可上升至近表层,8月中旬以后又逐渐减弱。上升流影响的深度范围在不同年份和月份及不同区域均不同。1982年夏季大约可上升至30-50m。上升流速度又依不同深度范围而不同。1980年7月台湾浅滩西南为1.4-9.4×10^(-4)cm/s。 粤东陆架边缘水域夏季的上升流与陆架坡折有关,而海流和季风的变化是上升流消长的主要因素。
In summer the upwelling in the continental shelf margin waters of the east coast of Guangdong is located in a belt-type zone which runs from southwest to northeast, in the continental shelf margin of the north Dongsha Islands, with the most intensive upwelling occuring in the southwest shallows of Taiwan. The upwelling has great annual variation and usually is relative weak in June, it is strongest in July where it can rise near to the surface layer. After the second ten days of August, the upwelling gradually decreases. As a result of the study, the scope of depth influenced by the upwelling is different in various years, months and waters. In the summer of 1982, it rose to approximately 30-50m. The rate of upwelling is also different with various scopes of depth, and was 1.4-9.4×10~4cm/s in the southwest shallows of Taiwan in July 1980.In summer, the upwelling in the continental shelf margin waters of the east coast of Guangdong is related to the continental shelf slope break, and variations of the current and monsoon are the main factors for the growth and decline of the upwelling.
出处
《热带海洋》
CSCD
1990年第4期16-23,共8页
