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A water movement study in Lianzhou Bay,Guangxi Province,China |
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| Authors: | Ting Sun Andreas Macrander David Kaiser |
| Institution: | 1. College of Physical and Environmental Oceanography, Ocean University of China, Qingdao, 266100, P. R. China 2. Marine Research Institute, Skúlagata 4, 121, Reykjavík, Iceland 3. Leibniz Centre for Tropical Marine Ecology, Fahrenheitstr, 6, D-28359, Bremen, Germany |
| Abstract: | This study investigates the physical conditions (water depth, current speed, salinity, temperature) in Lianzhou Bay, a shallow coastal bay in southern China, during two expeditions in the dry and wet seasons of 2011. Based on these expedition data, basic hydrodynamic parameters like Brunt-Väisälä Frequency, Richardson Number, Rossby radius, and Resonance Period are calculated. The results show that Lianzhou Bay is characterized by comparatively small quantity of freshwater input and weak stratification. Strong tides, which are spatially uniform within the bay, cause turbulent mixing. Residence time of the water is shorter in winter due to a stronger coastal current in that season. Consideration of the water movement may help to reduce the harmful ecological impact of aquaculture waste water discharge. |
| Keywords: | water movement water mixing process Rossy radius tidal resonance residence time Lianzhou Bay |
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