Volume transport in the East Taiwan Channel in response to different tracks of typhoons as revealed by HYCOM data

He, Yuanshou; Hu, Po; Yang, Bing; Yin, Yanyun; Hou, Yijun

doi:10.1007/s00343-021-0318-4

Cited by 3 publications

(1 citation statement)

References 64 publications

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“…Moreover, the powerful Kuroshio enters the ECS through the East Taiwan Channel, and a significant invasion of the continental shelf occurs in this sea area. In addition, typhoons generated in the western Pacific often pass through the waters near the southwestern slope of the ECS [39,40], which is conducive to the generation of NIWs. However, due to the great difficulties and high costs of in situ observations, especially under extreme weather and ocean conditions, there are few observations of NIWs generated by typhoons in this region.…”

Section: Introductionmentioning

confidence: 99%

Observation of Near-Inertial Waves Induced by Typhoon Mitag (2019) on the Southwestern East China Sea Continental Slope

Ouyang

Liu

Sun

et al. 2022

JMSE

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Based on horizontal velocity data recorded by a moored acoustic Doppler current profiler (ADCP) deployed on the southwestern continental slope of the East China Sea (ECS), this study investigates the characteristics of near-inertial waves (NIWs) induced by typhoon Mitag in October 2019. The results indicated that Mitag-induced near-inertial kinetic energy (NIKE) was mainly concentrated above 290 m and was subsurface-intensified; both the maximum velocity and kinetic energy of the NIWs occurred at a depth of 100 m and were 0.21 m/s and 23.01 J/m3, respectively. The rotary vertical wavenumber spectra suggested that both downward and upward energy propagation existed. However, upward energy propagation was much smaller than downward energy propagation, mainly in the 0.007–0.014 cpm wavenumber band. The NIWs had an e-folding timescale of 9.5 days and were red-shifted as a result of the Doppler shift of the Kuroshio. Normal mode analysis suggested that the NIWs were dominated by the first and fourth baroclinic modes, which together accounted for 76.7% of the total NIKE. Spectral analysis showed that although the spectral density of the semidiurnal internal tide (M2) peak overwhelmed that of the NIWs by a factor of approximately 30, the shear strength generated by the NIWs was comparable to that of the semidiurnal internal tide (M2), which plays an important role in upper ocean mixing on the southwestern continental slope of the ECS. In addition, the bicoherence analysis suggested that a harmonic wave (M2–f) was generated via the nonlinear interaction between the NIWs and semidiurnal internal tide (M2), which reflects the energy dissipation mechanism of semidiurnal tides and NIWs on the southwestern continental slope of the ECS.

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Section: Introductionmentioning

confidence: 99%

Observation of Near-Inertial Waves Induced by Typhoon Mitag (2019) on the Southwestern East China Sea Continental Slope

Ouyang

Liu

Sun

et al. 2022

JMSE

Self Cite

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Multiscale energy analysis of the impact of Typhoon Kalmaegi in the South China Sea

Yang

et al. 2023

Deep Sea Research Part I: Oceanographic Research Papers

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The Mechanism Driving a HAB-Induced SST Warming Anomaly: A Case Study in the Beibu Gulf

Yang

Lou

et al. 2023

Ocean-Land-Atmos Res

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Water temperature is one of the most important factors that affect the occurrence of harmful algal blooms (HABs). Characteristics of sea surface temperature (SST) variability related to a Noctiluca scintillans bloom were analyzed with Himawari-8 data in the Beibu Gulf during mid-February 2021. An SST warming anomaly was found around the bloom area from 10:00 to 19:00 local time, with a peak temperature of 24.3 °C at 15:00, which was 2.9 °C higher than the surrounding normal sea water. The possible formation mechanism of the HAB-induced SST anomaly was studied in this work by integrating meteorological, ocean dynamics, and ecological processes. During the HAB event, the sea surface was covered by biological mucilage. A model that considered the net heat flux, heat capacity, density of seawater, and temperature variation was established to estimate the thickness changes (Δ H ) in the marine heating layer during the HAB event. The model results show that the heating layer thickness of the HAB area (Δ H between 0.76 m and 0.91 m) was smaller than that of the non-HAB area (Δ H > 1.19 m). The SST anomaly in this study might be caused by a thinner and warmer marine heating layer that is related to the biological mucilage on the surface of the HAB area.

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Volume transport in the East Taiwan Channel in response to different tracks of typhoons as revealed by HYCOM data

Cited by 3 publications

References 64 publications

Observation of Near-Inertial Waves Induced by Typhoon Mitag (2019) on the Southwestern East China Sea Continental Slope

Observation of Near-Inertial Waves Induced by Typhoon Mitag (2019) on the Southwestern East China Sea Continental Slope

Multiscale energy analysis of the impact of Typhoon Kalmaegi in the South China Sea

The Mechanism Driving a HAB-Induced SST Warming Anomaly: A Case Study in the Beibu Gulf

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