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该文基于水体平均存留时间的概念,数值模拟不同风场条件下胶州湾的水交换能力。结果显示:在无风状态下,整个胶州湾的水体平均存留时间为79 d,在夏季统计风场、冬季统计风场、SE风向异常大风和NNW风向异常大风条件下,整个胶州湾的水体平均存留时间相对于无风状态分别减少了15.2%、21.5%、3.8%和2.5%。异常大风持续作用一天,对胶州湾东北、西南海域的水体平均存留时间影响可达10%左右。
Based on the concept of average water retention time, this paper simulates the water exchange capacity of Jiaozhou Bay under different wind conditions. The results showed that under the condition of no wind, the average water retention time of the whole Jiaozhou Bay was 79 days. Under the conditions of summer statistical wind field, winter statistical wind field, abnormal wind direction with abnormal wind direction and abnormal wind direction with NNW wind direction, The retention time was reduced by 15.2%, 21.5%, 3.8% and 2.5%, respectively, relative to the no-wind condition. Abnormal wind continued to play a day, the Jiaozhou Bay northeast and southwest waters of the average retention time of up to about 10%.