百年尺度长江口吴淞站平均海平面变化研究

Key Points

• The study aims to analyze the average sea level changes at Wusong Station over a century, assessing influencing factors.
• Compiled tidal data from Wusong Station since 1912.
• Employed calibration methods to correct tidal observations.
• Calculated sea level rise rates and extreme water levels over defined periods.
• Ground subsidence was identified as the main source of data error, with a total subsidence of approximately 1.28 m over more than a century.
• The corrected average sea level rise rate for the past century was found to be 1.89 mm/year, increasing to 2.16 mm/year in the last 50 years.
• Extreme high water levels at Wusong Station rose at a rate of 7.62 mm/year, indicating increased flood risk.

Abstract