0608号台风“桑美”过境前后对长江口外海域环境的影响

陈斌; 王凯; 刘健; 高飞

doi:10.3799/dqkx.2016.111

Volume 41 Issue 8

Aug. 2016

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Chen Bin, Wang Kai, Liu Jian, Gao Fei, 2016. The Impact of Super Typhoon Saomai (0608) on the Offshore Environment near the Yangtze Estuary. Earth Science, 41(8): 1402-1412. doi: 10.3799/dqkx.2016.111

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Chen Bin, Wang Kai, Liu Jian, Gao Fei, 2016. The Impact of Super Typhoon Saomai (0608) on the Offshore Environment near the Yangtze Estuary. Earth Science, 41(8): 1402-1412. doi: 10.3799/dqkx.2016.111

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The Impact of Super Typhoon Saomai (0608) on the Offshore Environment near the Yangtze Estuary

doi: 10.3799/dqkx.2016.111

Chen Bin^{1,2
,},
Wang Kai³,
Liu Jian^1,2,
Gao Fei^1,2

1.
Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology of Ministry of Land and Resources, Qingdao 26607, China
2.
Qingdao Institute of Marine Geology, Qingdao 266071, China
3.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China

Received Date: 2015-11-30
Publish Date: 2016-08-15

Abstract

Abstract

Typhoon is an important dynamic factor for short-term changes in the marine environment, which have a huge impact on the coastal estuarine environment. Based on the filed observation offshore near Yangtze Estuary before and after the typhoon "Saomai", the variations of water environment factors were analyzed in horizontal and vertical distribution. The results show that the temperature, salinity, chlorophyll a and turbidity changes were largely due to the advection transport and vertical mixing in the water body caused by the typhoon. The surface water temperature decreased and salinity increased, whereas the bottom water temperature increased and salinity decreased. The thickness of thermocline increased and stratifications got weaker than those before the typhoon, and the halocline almost disappeared in eastern area. The vertical transport of nutrient enhanced, causing an increase of the chlorophyll a. After the typhoon, the bottom cold water from the Taiwan warm current rose clearly in coastal area, and the upwelling feature was more significant, and the center of the Taiwan warm current in the bottom shifted eastward. The water turbidity decreased, especially in the shallow coastal waters, fine-grained sediments were flow transported by stronger advection.
- Yangtze Estuary,
- typhoon,
- temperature,
- salinity,
- chlorophyll a,
- turbidity,
- marine geology

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References(31)

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The Impact of Super Typhoon Saomai (0608) on the Offshore Environment near the Yangtze Estuary

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