Modelling the timing of major spring bloom events in the central Yellow Sea
Modelling the timing of major spring bloom events in the central Yellow Sea
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DOI：
10.1016/j.ecss.2012.08.017
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发表时间：
2012-11
影响因子：
2.8
通讯作者：
J. Xuan;Feng Zhou;Daji Huang;Xiao-hua Zhu;Chuanxi Xing;Xiaopeng Fan
中科院分区：
文献类型：
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作者：
J. Xuan;Feng Zhou;Daji Huang;Xiao-hua Zhu;Chuanxi Xing;Xiaopeng Fan
黄海春季水华是当地食物链中的初级生产力，通常发生在早春3月至4月的黄海中部。在本文中，我们使用一个三维物理海洋模式和一维生态系统模式，探讨了五个主要的春季水华事件在2007年在中部YS观察到的时间。结果表明，Sverdrup的临界深度模型可以用来模拟2007年3月和4月的前4次春季水华。在养分充足的条件下，春季水华的发生似乎总是受物理过程的控制，特别是风速的降低。水华事件的大小受真光层中的光和温度的影响。通过反演计算和线性回归研究了春季水华的时间和风速降低之间的相关性，并确定了触发水华的临界风速小于5.7 m s− 1。
Spring blooms observed in the Yellow Sea, which contribute the primary production in the local food chain, generally occur in the central part of the Yellow Sea (YS) in the early spring from March to April. In this paper, we use a 3-D physical ocean model and 1-D ecosystem model to explore the timing of the five major spring bloom events observed in the central YS in 2007. The results show that Sverdrup's critical depth model can be applied to simulate the first four spring bloom events in March and April of 2007. Under the conditions when nutrients are sufficient, the timing of the spring bloom events appears to always be controlled by physical processes and the reduction of the wind speed in particular. The magnitude of the bloom events is affected by light and temperature in the euphotic layer. The correlation between the timing of the spring bloom and the reduction of the wind speed is investigated by reversal computations and linear regression, and a critical wind speed of less than 5.7 m s−1was determined to trigger the bloom.