A Numerical Investigation of the Effect of Wave‐Induced Mixing on Tropical Cyclones Using a Coupled Ocean‐Atmosphere‐Wave Model
A Numerical Investigation of the Effect of Wave‐Induced Mixing on Tropical Cyclones Using a Coupled Ocean‐Atmosphere‐Wave Model
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DOI：
10.1029/2021jd036290
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发表时间：
2022-06
期刊：
影响因子：
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通讯作者：
Wenqing Zhang;D. Zhao;Donglin Zhu;Jingkai Li;Changlong Guan;Jian Sun
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文献类型：
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作者：
Wenqing Zhang;D. Zhao;Donglin Zhu;Jingkai Li;Changlong Guan;Jian Sun
海面波对调节海面温度和混合层深度具有重要作用，对准确预报热带气旋强度具有重要意义。利用海洋-大气-波浪耦合模式，研究了海浪破碎和波浪轨道运动引起的混合对热带气旋强度和尺度的影响。结果表明，波浪破碎和波浪轨道运动均导致海面温度降温和混合层加深，海气热通量减少，从而导致热带气旋强度和尺度减小。当混合层较浅时，波轨道运动对TC强度和大小的影响略大于波破裂，而当混合层较深时，波轨道运动对TC强度和尺度的影响要大得多。此外，在模式中考虑波动轨道运动引起的混合可以有效地减小模拟TC尺度的误差。
Ocean surface waves play a significant role in regulating the sea surface temperature and mixed layer depth, which are essential for accurate prediction of tropical cyclone (TC) intensity. The effects of wave breaking and wave orbital motion induced mixing on the TC intensity and size are investigated using a coupled ocean‐atmosphere‐wave model for both idealized and real TC cases. The results show that both wave breaking and wave orbital motion lead to greater sea surface temperature cooling and mixed layer deepening, resulting in decreases in TC intensity and size owing to the reduction of air‐sea heat fluxes. Wave orbital motion has a slightly greater effect than wave breaking on the TC intensity and size when the mixed layer is shallow, whereas it has a much greater effect when the mixed layer is deep. In addition, including wave orbital motion induced mixing in models can effectively reduce the error in simulated TC size.