Author(s): Lei Ren; Hexu Wang
Linked Author(s):
Keywords: Tropical cyclone; Near-inertial currents; High Frequency radar; Dynamic response
Abstract: This research delineates the response dynamics of the upper ocean near-inertial oscillations in the proximate marine areas of the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) when subjected to tropical cyclones. The study elucidates that these oscillations, through their sustained impact, facilitate not only the translocation of matter within the ocean’s upper strata but also profoundly influence marine dynamic processes, sedimentation patterns, and ecological systems. Furthermore, these oscillations are instrumental in the redistribution of energy across marine spaces, thereby modifying the ocean’s energy landscape. In this context, the present analysis utilizes High-Frequency radar (HFR) systems for the acquisition of continuous data on sea surface currents within the GBA’s coastal zones. The focus is primarily on the lateral progression of near-inertial oscillations as influenced by tropical cyclones. Approaching from the perspective of near-inertial surface currents, this investigation delves into the spatial-temporal dynamics and energy characteristics of these currents, particularly under the conditions set by tropical cyclones. The objective is to uncover the underlying principles governing the lateral development of near-inertial marine currents in the waters neighboring the GBA, especially in the presence of tropical cyclones. This exploration into near-inertial oscillations aims to augment our comprehensive understanding of marine hydrodynamics, thereby contributing substantially to the expansion and intensification of oceanographic dynamical studies.
Year: 2024