Modulation of Bubble‐Mediated CO 2 Gas Transfer Due To Wave‐Current Interactions
Modulation of Bubble‐Mediated CO 2 Gas Transfer Due To Wave‐Current Interactions
复制标题
气泡的调节——由于波——电流相互作用而介导的CO 2 气体转移
DOI：
10.1029/2022gl100017
复制
发表时间：
2022
影响因子：
5.2
通讯作者：
Romero, Leonel
中科院分区：
文献类型：
--
作者：
Shin, Youngmi;Deike, Luc;Romero, Leonel
波浪破碎调节能量、动量、热量和气体的海气通量。基于CO2气体交换和波浪破碎模型的最新进展，我们研究了由于波流相互作用引起的气泡介导的气体传递系数的变化。亚中尺度流梯度强烈调制波破碎，这可以增强沿着温度锋和冷丝的气泡介导的气体传输系数。气体传递系数的增强是在相对小的区域上，在较大的区域上平均化。然而，正异常的气体传输系数和强下沉流区域之间的相关性可能会增强CO2交换区域增加次中尺度活动。基于平均波浪周期、均方根海流梯度和摩擦速度的经验标度可以解释在有海流强迫和无海流强迫的情况下计算的气体传输系数的均方根差异。
Wave breaking modulates air‐sea fluxes of energy, momentum, heat, and gases. Building on recent advances in the modeling of CO2gas exchange and wave breaking, we investigate the variability of bubble‐mediated gas transfer coefficients due to wave‐current interactions. Submesoscale current gradients strongly modulate wave breaking, which can enhance the bubble‐mediated gas transfer coefficient along temperature fronts and cold filaments. The enhancement of the gas transfer coefficient is over relatively small areas averaging out over larger regions. However, the correlation between positively anomalous gas transfer coefficients and regions with strong downwelling could potentially enhance CO2exchange over regions with increased submesoscale activity. An empirical scaling based on the mean wave period, root‐mean‐square current gradients, and friction velocity can explain the root‐mean‐square differences of gas transfer coefficients computed from solutions with and without current forcing.