April 2, 2013 - NOAA has released a major update of their tidestation data, with updated trend analysis and graphs for many stations, and many newly-analyzed PSMSL stations! See the new 2013 spreadsheets on the sealevel.info data page. (Note: as a result of these changes there are a few dead links in some of the older spreadsheets, which I've not yet fixed.)
March 23, 2013 - Rev 0.7, added a spreadsheet with just the 45 NOAA-administered GLOSS-LTT tide stations, and also one with just the 42 of those 45 for which there was data through 2011. (The other stations were three Pacific Islands: Johnston Atoll, Pago Pago, and Chuuk.)
Notes: Last year NOAA recalculated sea-level trends for those 42 U.S. tide gauges using data through 2011. The results were illuminating.
The sea-level records for the 42 gauges had an average duration of 87.4 years (through 2011), and NOAA's calculated trends had an average confidence interval of ±0.515 mm/yr.
When new (through 2011) trends were compared to the old (through 2006) trends, 23 sites showed slight declines in the rate of sea-level rise, and 19 showed slight increases.
A simple, unweighted average of the 42 gauges comes to 2.025 mm/yr average rate of SLR through 2006, or 2.026 mm/yr through 2011 (a difference of one one-thousandth of a millimeter/year), or 1.286 mm/yr if you include Peltier's VM2 GIA adjustments.
The bottom line is that, as measured by the 42 best U.S. long-term trend tide stations, the average rate of sea-level rise over the 5-year period from 2006-2011 is virtually identical to the rate for the full data record (averaging 87.4 years duration) -- more proof that there's been no detectable acceleration in rate of sea-level rise in response to elevated CO2 levels.
March 8, 2013 - updated spreadsheets with latest NOAA and PSMSL data.
March 1, 2013 - Rev 0.6, most of the spreadsheets here now have clickable column headers. Click a column header to sort the data by that column. Click twice to reverse the sort order.
September 29, 2012 - Rev. 0.5, added more papers to the Papers page, and more resources to the Resources page
August 23, 2012 - Rev 0.2-0.4, moved resources list to Resources page, and added BlogRoll, Papers & Data pages
August 19, 2012 - Rev 0.1
August 15, 2012 - under construction
Last modified: 03-Apr-2013 (version 46)
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