通过加剧热带气旋加强库罗西奥流
Yu Zhang1, Zhengguang Zhang2, Dake Chen3,4
1Physical Oceanography Laboratory/CIMST, Ocean University of China and Qingdao National Laboratory for Marine Science and Technology, Qingdao, P. R. China. yuz@ouc.edu.cn.
Science (New York, N.Y.)
|May 30, 2020
概括
热带气旋通过积极的反循环加剧海洋变暖. 太阳流驱散海洋旋风,特别是反旋风,导致更积极的潜在旋风 (PV) 异常,加速库罗西奥电流.
科学领域:
- 海洋学
- 气候科学
- 天气学
背景情况:
- 海洋地质旋在能量转移和潜在旋 (PV) 分布中起作用.
- 热带气旋活动影响海洋动态和能源预算.
- 对于气候变化研究来说,了解TC和海洋旋之间的相互作用至关重要.
研究的目的:
- 研究热带气旋和气候变暖之间的正反机制.
- 检查海洋地质旋能量和潜在旋 (PV) 的TC诱导的变化.
- 分析这些变化对海洋和气候的影响.
主要方法:
- 对TC活动和海洋地质的分析.
- 检查中的能量和潜在旋转变化.
- 对TC趋势和PV异常之间的相关性分析.
主要成果:
- 海洋旋的大量消散,偏向于反旋,与TC活动有关.
- 台湾以东的阳性光伏异常出现上升趋势,与TC强化相关.
- 波浪带来的阳性光伏异常会对库罗西奥流产生影响,
结论:
- 电流可以通过散和光伏异常传输加速库罗西奥电流.
- 这种加速阻碍了盆地范围内的风力压力下降,导致海洋变暖.
- 确定了TC和气候变暖之间的积极反机制,对热带以外的气候产生潜在影响.
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