超强台风"灿都"(2021年)对黑潮入侵吕宋海峡的影响OA北大核心CSTPCD

To investigate the responses of oceanic processes and the Kuroshio intrusion through the Luzon Strait when the super Typhoon Chanthu passed by the Luzon Strait region,the changes of oceanic thermal and dynamic structures and the response of Luzon Strait transport to the typhoon when it passes by the Luzon Strait region were studied,using the CMEMS eddy-scale ocean reanalysis data and the CMA tropical cyclone best track data.The results are shown as follows.Typhoon Chanthu maintained its intensity through a subsurface warm eddy and strengthened to its peak,resulting in the decrease of sea temperature and sea surface height,and the deepening of the mixed layer along its path.When the typhoon arrived at the central line of the Luzon Strait,a warm eddy on its right is destructed after interacting with it for some time.When the typhoon reaches the east side of Taiwan Island,it strengthened a cold eddy and was weakened by the enhanced negative feedback.The typhoon enhanced the outflow from the South China Sea and weakened the Kuroshio intrusion into the South China Sea.The change of ocean heat transport was consistent with that of water volume transport,and the change of ocean heat content was mainly indirectly affected by typhoon-induced transport anomalies.The mesoscale eddy plays an important role in the development of the typhoon.The typhoon may break a warm eddy,or strengthen a cold eddy.The typhoon is considered to suppress the intrusion flow at the central strait and strengthen the outflow at the southern strait,and the stimulated fluctuations of anomalous transport through the Luzon Strait in the deep layer are shown to lead the anomalies in the shallow layer.