台风对上层海洋初级生产力和营养盐输运的影响
发布时间：2018-07-17 07:52
【摘要】：利用垂直一维物理-生物耦合模型模拟了台风"派比安"和超强台风"珍珠"对南海北部水温、营养盐和叶绿素垂直分布的影响,并估算了2次台风对初级生产力和营养盐垂直输送的贡献。结果表明,"派比安"引发50m以浅海水温度降低,表层降温2.0℃,50~130m海水温度升高,混合层加深30m,海表叶绿素浓度增加0.18mg·m~(-3),营养盐垂向输运对初级生产力的贡献为2.3×103 mg C·m~(-2),约占全年的3%。"珍珠"引发55m以浅海水温度降低,表层降温超过5.0℃,55~150m海水温度升高,混合层加深85m,海表叶绿素浓度增加0.9mg·m~(-3),带来的营养盐垂向输运量约为全年的30%,对初级生产力的贡献为12.8×103 mg C·m~(-2),约占全年的18%。可见,台风过程,特别是强台风过程对上层海洋的初级生产和生物地球化学过程具有显著影响。台风的强度和移动速度等自身特征是决定海洋环境要素对台风响应程度的核心要素,同时台风过境前的水体层化状态和营养盐水平也是不可忽视的因素。
[Abstract]:The vertical one-dimensional physical-biological coupling model was used to simulate the effects of typhoon Pibian and super typhoon Pearl on the vertical distribution of water temperature, nutrients and chlorophyll in the northern part of the South China Sea. The contribution of two typhoons to primary productivity and vertical transport of nutrients was estimated. The results showed that the temperature of "pipion" was 50 m in shallow seawater, the temperature of surface water was increased by 2.0 鈩，
本文编号：2129676
[Abstract]:The vertical one-dimensional physical-biological coupling model was used to simulate the effects of typhoon Pibian and super typhoon Pearl on the vertical distribution of water temperature, nutrients and chlorophyll in the northern part of the South China Sea. The contribution of two typhoons to primary productivity and vertical transport of nutrients was estimated. The results showed that the temperature of "pipion" was 50 m in shallow seawater, the temperature of surface water was increased by 2.0 鈩，
本文编号：2129676
本文链接：https://www.wllwen.com/kejilunwen/haiyang/2129676.html
