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Cite this paper: |
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YU Jing, ZHANG Xueqing, LIU Jinliang, LIU Rui, WANG Xing. Numerical study on the influences of Nanliu River runoff and tides on water age in Lianzhou Bay[J]. Journal of Oceanology and Limnology, 2016, 34(5): 1106-1113 |
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Numerical study on the influences of Nanliu River runoff and tides on water age in Lianzhou Bay |
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| YU Jing1, ZHANG Xueqing2, LIU Jinliang2, LIU Rui2, WANG Xing2 |
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1 College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266000, China;
2 College of Environmental Science and Engineering, Ocean University of China, Qingdao 266000, China |
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| Abstract: |
| The concept of water age is applied to calculate the timescales of the transport processes of freshwater in Lianzhou Bay, using a model based on ECOMSED. In this study, water age is defined as the time that has elapsed since the water parcel enters the Nanliu River. The results show that the mean age at a specified position and the runoff of the Nanliu River are well correlated and can be approximately expressed by a natural logarithmic function. During the neap tide, it takes 70, 60 and 40 days in the dry, normal and rainy seasons for water to travel from the mouth of the Nanliu River to the northeast of Lianzhou Bay, respectively, which is not beneficial to water exchange in the bay. Tides significantly influence the model results; it takes five less days for the tracer to be transported from the mouth of the Nanliu River to the north of Guantouling during the spring tide than during the neap tide. |
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| Key words:
Lianzhou Bay|passive tracer|numerical simulation|neap-spring variation|water age
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| Received: 2015-04-21 Revised: 2015-06-01 |
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