Prediction of Sea Level Rise near Shanghai

Yi Zheng
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Abstract

Firstly, by establishing a prediction model for global sea-level rise and calculating with Maple, it is shown that the global sea-level rise rate in 2009 is 2.68 mm/a. The height and rate of global sea-level rise will be about 9.11 cm and 3.22 mm/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 12.68 mm/a in 2009. Then, through setting up the extrapolation prediction model with a linear trend term and a significant tidal cycle, the rise rate of average sea-level near Lingang New City was predicted. The result showed it will be 0.33 mm/a in 2020.
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上海附近海平面上升预测
首先,通过建立全球海平面上升预测模型并利用 Maple 进行计算,得出 2009 年全球海平面上升速率为 2.68 mm/a。到 2020 年,全球海平面上升高度和速率将分别达到约 9.11 厘米和 3.22 毫米/年。根据研究和上海临港新城的实际地面沉降情况,计算出 2009 年临港新城附近的海平面相对上升速率为 12.68 mm/a。然后,通过建立具有线性趋势项和显著潮汐周期的外推法预测模型,对临港新城附近的平均海平面上升速率进行预测,结果表明 2020 年的平均海平面上升速率为 0.33 mm/a。
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