Analysis on the sea level anomaly high of 2016 in China coastal area

Wang Hui; Liu Kexiu; Fan Wenjing; Feng Jianlong; Wang Guosong; Zhang Jianli; Wang Aimei; Li Yan

doi:10.3969/j.issn.0253-4193.2018.02.004

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Wang Hui, Liu Kexiu, Fan Wenjing, Feng Jianlong, Wang Guosong, Zhang Jianli, Wang Aimei, Li Yan. Analysis on the sea level anomaly high of 2016 in China coastal area[J]. Haiyang Xuebao, 2018, 40(2): 43-52. doi: 10.3969/j.issn.0253-4193.2018.02.004

Citation:

Wang Hui, Liu Kexiu, Fan Wenjing, Feng Jianlong, Wang Guosong, Zhang Jianli, Wang Aimei, Li Yan. Analysis on the sea level anomaly high of 2016 in China coastal area[J]. Haiyang Xuebao, 2018, 40(2): 43-52. doi: 10.3969/j.issn.0253-4193.2018.02.004

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Analysis on the sea level anomaly high of 2016 in China coastal area

doi: 10.3969/j.issn.0253-4193.2018.02.004

1. National Marine Data and Information Service, Tianjin 300171, China

Received Date: 2017-05-31

Abstract

Abstract

Based on tide, sea surface temperature (SST), air temperature (AT), barometric pressure and wind data etc., the sea level amomaly high of 2016 in the China coastal area is investigated. The results show that the coincidence of several long-period (~2 a, 4 a,~9 a and~19 a) vibration made the sea level high during 2010-2016. In 2016, AT and SST along the China coastal area are 0.7℃ and 0.5℃ higher than normal, reached the higher level in history, and the barometric pressure is -0.2 hPa lower than normal. In April, September, October and November 2016, the South China Sea strongest southerly wind lead East China Sea and South China Sea coastal waters for a long time accumulation. The residual water levels contribute 40%-80% to sea level rise. In April 2016, the El Niño event finished, and the tropical Pacific return to La Niña state. The precipitation is more serious than normal under this influence, and regional precipitation reached highest in history. At the same time, the increase of runoff resulted in sea level rise. During September and October, five cyclones impacted South China, the continue storm surge caused the sea level 70-360 mm higher than the monthly sea level. The storm surge and flood caused serious economic loss.
- sea level,
- periodic oscillation,
- sea surface temperature,
- air temperature,
- wind

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References(20)

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