Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Oceanic Response Based on the Rectified Data during Three Typhoons in the northern South China Sea

Daoxun Ke
* ,
Han Zhang
* ORCID logo ,
Youmin Tang
,
Juncheng Zuo
,
Dongfeng Xu
ORCID logo ,
Chenghao Yang
,
Zhixiong Yao
,
Zheqi Shen
,
Di Tian
Version 1 : Received: 30 September 2020 / Approved: 5 October 2020 / Online: 5 October 2020 (12:05:09 CEST)

How to cite: Ke, D.; Zhang, H.; Tang, Y.; Zuo, J.; Xu, D.; Yang, C.; Yao, Z.; Shen, Z.; Tian, D. Oceanic Response Based on the Rectified Data during Three Typhoons in the northern South China Sea. Preprints 2020, 2020100078. https://doi.org/10.20944/preprints202010.0078.v1 Ke, D.; Zhang, H.; Tang, Y.; Zuo, J.; Xu, D.; Yang, C.; Yao, Z.; Shen, Z.; Tian, D. Oceanic Response Based on the Rectified Data during Three Typhoons in the northern South China Sea. Preprints 2020, 2020100078. https://doi.org/10.20944/preprints202010.0078.v1

Abstract

Three typhoons (Rammasun, Kalmaegi, and Sarika) travelled through the deployed stations in the northern South China Sea from 2014–2016. During the passage of typhoons, strong winds and vigorous currents resulted in horizontal displacement of buoy over 2000 m, vertical displacement of ropes on buoys as much as 200 m. The rectification can correct the warm anomaly to cool anomaly of temperature. These movements lead to biases of raw data, with temperature bias as much as 4°C, salinity as much as 0.05 psu, velocity bias as much as 0.4 m/s. The crosscheck of current velocity from different instruments shows that the bias of overlapping velocity and correlation coefficient after depth rectification obviously enhances. The observation shows that temperature cools 1.5 °C, and 0.1 psu saltier in maximum, the near-inertial current increases to 0.4 m/s in the upper layer. The inertial kinetic energy propagates downward with the upward phase, and the maximum depth can reach over 2000 m.

Keywords

rectification; bias; typhoon; kinetic energy

Subject

Environmental and Earth Sciences, Oceanography

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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