期刊
REMOTE SENSING
卷 14, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/rs14102300
关键词
turbulent mixing; upper ocean response; Super Typhoon Goni; satellite observations; sea surface temperature; HYCOM reanalysis results
类别
资金
- National Natural Science Foundation of China [42176002, 41830533]
- open fund of the State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources [QNHX2218]
This study examined the response of the upper ocean to Super Typhoon Goni in 2015 and revealed a significant enhancement of diapycnal diffusivity induced by the typhoon. The results showed that Goni caused a maximum sea surface temperature cooling of 7.7 degrees C, which was greater than most typhoons. The enhanced turbulent mixing was found to be consistent with Goni-induced near-inertial waves.
Based on the satellite-observed sea surface temperature (SST) data, high-resolution Argo observations and hybrid coordinate model (HYCOM) reanalysis results, this study examined the upper ocean response to Super Typhoon Goni in 2015 in the western north Pacific and revealed the significant diapycnal diffusivity enhancement in the upper ocean induced by Goni. Results indicate that the maximum SST cooling caused by Goni was 7.7 degrees C, which is greater than the SST cooling caused by most typhoons. The severe SST cooling was related to the enhancement of turbulent mixing induced by Goni. To the right of the typhoon track, the diapycnal diffusivity enhancement in the upper ocean caused by Goni could reach three orders of magnitude, from O (10(-5) m(2)/s) to O (10(-2) m(2)/s) and could last at least 9 days after the passage of Goni. In contrast, the diapycnal diffusivity to the left of the typhoon track did not show significant variations. The enhancement of turbulent mixing was found to be consistent with Goni-induced near-inertial kinetic energy calculated from the HYCOM reanalysis results, which suggests that the enhanced turbulent mixing was caused by Goni-induced near-inertial waves.
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