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Relative sea level rise along the coast of China mid-twentieth to end twenty-first centuries

  • Albert Parker
Short Communication

Abstract

The relative sea level rates of rise, and their likely accelerations, are estimated for China by analysing the measured relative sea level data of short-term Chinese and long-term worldwide tide gauges. The analysis accounts for the very well-known natural oscillations up to quasi-60 years while also factoring the subsidence of the instrument. It is found that the relative sea levels rose in China during the twentieth century and this part of the twenty-first century from − 1.2 to + 3.2 mm/year, on average + 1.4 mm/year. These results are partially explained by the differential subsidence and the different timings of start/stop of the relatively short records. Because the tide gauges of China are all too short to infer accelerations, the world average values of 0.001–0.003 mm/year2 for data sets of average rates of rise of + 1.3 to + 1.8 mm/year are taken as a likely guess. It is then expected that the sea levels may rise of 0–259 mm up to the end of the twenty-first century.

Keywords

China Tide gauge records Sea level rise Sea level acceleration Measurements Multi-decadal oscillations 

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Copyright information

© Saudi Society for Geosciences 2018

Authors and Affiliations

  1. 1.Independent ScientistBundooraAustralia

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