Influence of Typhoon Hagibis on chlorophyll-a and temperature in the Northwest Pacific Ocean

Xin Wang; Xiulin Lou; Huaguo Zhang; Jingsong Yang

doi:10.1117/12.2652039

20 January 2023 Influence of Typhoon Hagibis on chlorophyll-a and temperature in the Northwest Pacific Ocean

Xin Wang, Xiulin Lou, Huaguo Zhang, Jingsong Yang

Proceedings Volume 12561, AOPC 2022: Atmospheric and Environmental Optics; 125610C (2023) https://doi.org/10.1117/12.2652039
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

Using a variety of observation data from satellite and BGC-Argo, this work investigates the influence of Typhoon Hagibis on ecological responses of the upper ocean in the Northwest Pacific Ocean. Measurements of chlorophyll-a concentration and sea surface temperature from Himawari-8 associated with Typhoon Hagibis were analyzed. The results show that the chlorophyll-a concentration along the typhoon track increased within 2-3 days after its transit, and the maximum value reached 0.3 mg/m³ or even higher while the sea surface temperature responded until 4-5 days later, with seawater cooling by 0.17-0.3°C. The observations of BGC-Argo demonstrate that Ekman pumping phenomenon may have occurred during the passage of Typhoon Hagibis, which induced the vertical transportation of deeper seawater to the upper and surface ocean, resulting in the increase of chlorophyll-a concentration, the decrease of temperature in mixed layer along the typhoon path.

Citation Download Citation

Xin Wang, Xiulin Lou, Huaguo Zhang, and Jingsong Yang "Influence of Typhoon Hagibis on chlorophyll-a and temperature in the Northwest Pacific Ocean", Proc. SPIE 12561, AOPC 2022: Atmospheric and Environmental Optics, 125610C (20 January 2023); https://doi.org/10.1117/12.2652039

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