Nonlinear absolute sea-level patterns in the long-term-trend tide gauges of the West Coast of North America

Nonlinear engineering: Modeling and application

article

Alberto Boretti¹ 

[1] Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University

关键词: tide gauges;    GPS;    sea levels;    subsidence;   

DOI  :  10.1515/nleng-2020-0024

来源: De Gruyter

【 摘 要 】

The research issue of which are the present relative and absolute rates of rise and accelerations for North America is here addressed. The data of the 20 long-term-trend (LTT) tide stations of the West Coast of North America with more than 80 years of recorded data are shown. The absolute rates of rise are computed by considering the absolute vertical velocity of Global Navigation Satellite System (GNSS) antennas near the tide gauges, and the relative rate of sea-level rise from the tide gauge signals. The 20 LTT stations along the West Coast of North America show an average relative rate of rise of -0.38 mm/yr., an average acceleration of +0.0012 mm/yr 2 , and an average absolute rate of rise of +0.73 mm/yr. This is the first paper publishing a comprehensive survey of the absolute sea-level rates of rise along the West Coast of North America using the reliable information of relative sea-level rates of rise from LTT tide gauges plus the absolute subsidence rates from different GNSS antennas close to the tide gauge installations.

【 授权许可】

Unknown