Sea-Level Acceleration Based on U.S. Tide Gauges and Extensions of Previous Global-Gauge Analyses
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Material Information

Title:
Sea-Level Acceleration Based on U.S. Tide Gauges and Extensions of Previous Global-Gauge Analyses
Series Title:
Journal of Coastal Research Volume 00 Number 0
Creator:
Houston, J.R.
Dean, R.G.
Publisher:
Coastal Education & Research Foundation
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Climate Change ( lcsh )
tides ( lcsh )
Sea Level Rise ( lcsh )

Notes

Abstract:
Without sea-level acceleration, the 20th-century sea-level trend of 1.7 mm/y would produce a rise of only approximately 0.15 m from 2010 to 2100; therefore, sea-level acceleration is a critical component of projected sea-level rise. To determine this acceleration, we analyze monthly-averaged records for 57 U.S. tide gauges in the Permanent Service for Mean Sea Level (PSMSL) data base that have lengths of 60–156 years. Least-squares quadratic analysis of each of the 57 records are performed to quantify accelerations, and 25 gauge records having data spanning from 1930 to 2010 are analyzed. In both cases we obtain small average sea-level decelerations. To compare these results with worldwide data, we extend the analysis of Douglas (1992) by an additional 25 years and analyze revised data of Church and White (2006) from 1930 to 2007 and also obtain small sea-level decelerations similar to those we obtain from U.S. gauge records. ( English )

Record Information

Source Institution:
Florida International University
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Aggregations:
Sea Level Rise