Estimates of Vertical Crustal Motion Derived from Differences of TOPEX/POSEIDON and Tide Gauge Sea Level Measurements
Digital Object Identifier (DOI)
 We have computed estimates of the rate of vertical crustal motion from differences of sea level measurements made by the TOPEX/POSEIDON radar altimeter and a globally distributed network of 114 tide gauges. A rigorous error analysis was performed which suggests the accuracy of the estimated vertical rates is approximately 1–2 mm/year for roughly half of the tide gauges, which is sufficiently accurate to detect a variety of geophysical phenomena. While only a cursory analysis of the estimated crustal motion rates was performed, we observed many interesting phenomena including significant uplift at volcanic islands in the Pacific and uplift of 7–9 mm/year along the southwest coast of Alaska. The results reported here will be useful in a variety of geophysical studies, as well as for validation of similar estimates of vertical crustal motion provided by precise geodetic techniques such as SLR, DORIS, GPS, and VLBI.
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Citation / Publisher Attribution
Geophysical Research Letters, v. 29, issue 19, art. 1934
Scholar Commons Citation
Nerem, R. S. and Mitchum, G. T., "Estimates of Vertical Crustal Motion Derived from Differences of TOPEX/POSEIDON and Tide Gauge Sea Level Measurements" (2002). Marine Science Faculty Publications. 2120.