Abstract
To predict Changing of Sea Level near Lingang New City in Shanghai, a model for global sea-level rise was established firstly and calculated with Maple. It is showed: the global sea level rise rate in 2009 is 2.68mm/a. The height and rate of global sea-level rise will be about 9.11cm and 3.22mm/a in 2020. Based on the study and the actual land subsidence in Shanghai Lingang New City, the rate of relative sea-level rise near Lingang New City is calculated to be 12.68mm/a in 2009. Then, through setting of the extrapolation prediction model with linear trend term and a significant cycle of tidal, the rise rate of average sea-level near Lingang New City was predicted. The result showed: it will be 0.33mm/a in 2020. It will have a reference value for the prevention and mitigation of the disaster and the urban planning to Shanghai Lingang New City.
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