Date CW_2011 UHSLC_FD "About these data: These data are for education and communication purposes only; they are produced by Philip Townsend (University of Hawaii Sea Level Center) for Climate.gov's Global Climate Dashboard. Data for the most recent year should be considered preliminary and subject to revision. The early part of the time series (Column 2) comes from the sea level group of CSIRO (Commonwealth Scientific and Industrial Research Organisation), Australia's national science agency. It is based on the paper Church, J. A., & White, N. J. (2011). Sea-Level Rise from the Late 19th to the Early 21st Century. Surveys in Geophysics, 32(4), 585Ð602. https://doi.org/10.1007/s10712-011-9119-1. The more recent part of the time series (Column C) is from the University of Hawaii Sea Level Center (http://uhslc.soest.hawaii.edu/data/?fd). It is based on a weighted average of 373 global tide gauge records collected by the U.S. National Ocean Service, UHSLC, and partner agencies worldwide. The weights for each gauge in the global mean are determined by a cluster analysis that groups gauges from locations where sea level tends to vary in the same way. This prevents over-emphasizing regions where there are many tide gauges located in close proximity. The values are shown as change in sea level in millimeters compared to the 1993-2008 average. 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