Rates of sea-level change over the past century in a geocentric reference frame

Edited: 2011-02-21
TitleRates of sea-level change over the past century in a geocentric reference frame
Publication TypeJournal Article
Year of Publication2009
AuthorsWöppelmann, G., C. Letetrel, A. Santamaria, M. Bouin, X. Collilieux, Z. Altamimi, S. D. P. Williams, and B. M. Miguez
JournalGeophysical Research Letters
Volume36
Pagination12607
Date Published06/2009
Keywordssea_level, tide_gauge
AbstractThe results from a carefully implemented GPS analysis, using a strategy adapted to determine accurate vertical station velocities, are presented. The stochastic properties of our globally distributed GPS position time series were inferred, allowing the computation of reliable velocity uncertainties. Most uncertainties were several times smaller than the 1-3 mm/yr global sea level change, and hence the vertical velocities could be applied to correct the long tide gauge records for land motion. The sea level trends obtained in the ITRF2005 reference frame are more consistent than in the ITRF2000 or corrected for Glacial-Isostatic Adjustment (GIA) model predictions, both on the global and the regional scale, leading to a reconciled global rate of geocentric sea level rise of 1.61 ± 0.19mm/yr over the past century in good agreement with the most recent estimates.
URLhttp://adsabs.harvard.edu/abs/2009GeoRL..3612607W
DOI10.1029/2009GL038720