current position:Home>Ministry of natural resources: in 2021, China's coastal sea level reached the highest level since 1980

Ministry of natural resources: in 2021, China's coastal sea level reached the highest level since 1980

2022-05-07 11:48:01Chinese industry information station

2021 year , The regional characteristics of sea level change along the coast of China are obvious , Compared with the year round , The Bohai Sea 、 The Yellow Sea 、 The sea levels along the East China Sea and the South China Sea are respectively high 118 mm 、88 mm 、80 Mm and 50 mm . And 2020 Compared to , The sea levels along the Bohai Sea and the Yellow Sea rise respectively 32 Mm and 28 mm , The sea level along the coast of the East China Sea is basically flat , Sea level decline along the coast of the South China Sea 18 mm .

High sea levels exacerbate the impact of disasters in coastal areas .2021 year , Storm surges and coastal urban floods mainly occur in areas with high seasonal sea level 7—10 month , Among them, Zhejiang 、 Liaoning, Hainan and other coastal areas are seriously affected . And 2020 Compared to , The degree of salt tide intrusion in the Changjiang Estuary and Qiantang estuary is generally aggravated , The number of saltwater intrusion and the number of affected days in the Pearl River Estuary increased ; liaoning 、 hebei 、 The coastal erosion of some monitored coastal sections of Fujian and Hainan has intensified ; liaoning 、 The scope of seawater intrusion has increased in some coastal areas of Hebei and Jiangsu .

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