The interactions between mesoscale eddies and typhoons are important for understanding the oceanic environment, but large variance is identified in each case because of the complex underlying dynamics. Fifteen-year datasets of typhoon tracks and eddy tracks in the South China Sea (SCS) are employed to comprehensively determine the influence of preexisting eddies on typhoon-induced sea surface cooling (SSC). Typhoons with high wind speeds and slow translation speeds induce large SSC in summer and autumn, when more than 80% of typhoons occur during a year. The relative locations of typhoons and eddies are used to classify their distributions, and four groups are identified, with typhoons traversing to the left or right of cyclonic or anticyclonic eddies. Generally, cyclonic eddies (CEs) located to the right of a typhoon track can result in a large cooling core, but anticyclonic eddies (AEs) can interrupt the cooling band along the right side of typhoon tracks. The recovery from typhoon-induced SSC takes longer than 15 days, though preexisting AEs can induce a rapid rebound after reaching the minimum sea surface temperature (SST). In addition, the dependence of SSCs on a typhoon’s features, such as wind speed and translation speed, are amplified (reduced) by CEs (AEs). The enhancement of typhoon-induced local SSC by CEs is counterbalanced by the suppression of SSC by AEs; thus, the overall impacts of CEs and AEs on typhoon-induced local SSC are relatively weak in the SCS.

中文翻译：

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南海已存在的涡对台风引起的海面降温的调节

中尺度涡旋和台风之间的相互作用对于理解海洋环境很重要，但是由于复杂的底层动力学，在每种情况下都可以发现较大的差异。利用南海（SCS）的十五年台风径迹和涡流径迹数据集来全面确定先前涡流对台风诱发的海面冷却（SSC）的影响。高风速和平移速度慢的台风在夏季和秋季会引起大的南南合作，一年中有80％以上的台风发生。台风和涡流的相对位置用于对它们的分布进行分类，并确定了四个组，其中台风横越旋风或反气旋涡流的左侧或右侧。一般来说，位于台风轨道右侧的气旋涡（CE）可能会导致较大的冷却芯，但反气旋涡（AE）可能会中断台风轨道右侧的冷却带。从台风引起的南南合作中恢复要花费超过15天的时间，尽管预先存在的AE可以在达到最低海面温度（SST）后引起快速反弹。另外，CE（AE）会放大（降低）SSC对台风特征（如风速和平移速度）的依赖性。CEs增强台风诱发的局部SSC被AEs抑制SSC所抵消。因此，CE和AE对台风引起的局部南南合作的总体影响在南海相对较弱。从台风引起的南南合作中恢复要花费超过15天的时间，尽管预先存在的AE可以在达到最低海面温度（SST）后引起快速反弹。另外，CE（AE）会放大（降低）SSC对台风特征（如风速和平移速度）的依赖性。CEs增强台风诱发的局部SSC被AEs抑制SSC所抵消。因此，CE和AE对台风诱发的局部南南合作的总体影响在南海相对较弱。从台风引起的南南合作中恢复要花费超过15天的时间，尽管预先存在的AE可以在达到最低海面温度（SST）后引起快速反弹。另外，CE（AE）会放大（降低）SSC对台风特征（如风速和平移速度）的依赖性。CEs增强台风诱发的局部SSC被AEs抑制SSC所抵消。因此，CE和AE对台风引起的局部南南合作的总体影响在南海相对较弱。CEs增强台风诱发的局部SSC被AEs抑制SSC所抵消。因此，CE和AE对台风诱发的局部南南合作的总体影响在南海相对较弱。CEs增强台风诱发的局部SSC被AEs抑制SSC所抵消。因此，CE和AE对台风诱发的局部南南合作的总体影响在南海相对较弱。