The tide gauge data are freely accessible by all, and consist predominantly of monthly-mean and annual-mean sea levels. The primary,"Revised Local Reference" data set has a continuous history of benchmark surveys for each gauge, ensuring that sea level is measured relative to a known land-based datum. There is also a "Metric" data set without such datum control, and a set of hourly and daily ocean bottom pressure data from the open ocean. The latter has no datum control, and the instruments are prone to calibration drift, so the bottom pressure data are useful only for oscillations with periods significantly shorter than the length of an individual instrument deployment (typically 1 year).[2]
^Rickards, L.; Matthwes, A.; Gordon, K.; Tamisea, M.; Jevrejeva, S.; Woodworth, P.; Bradshaw, E. (2015). "Rickards et al., 2013: Celebrating 80 years of the Permanent Service for Mean Sea Level (PSMSL)". Proceedings of the International Association of Hydrological Sciences. 365: 1–5. doi:10.5194/piahs-365-1-2015.
^"PSMSL Ocean Bottom Pressure processing procedures". Retrieved 20 April 2017.
permanent, service, mean, level, repository, tide, gauge, data, used, measurement, long, term, level, change, psmsl, based, national, oceanography, centre, liverpool, england, founded, 1933, iugg, mean, level, committee, adopted, permanent, service, internatio. The Permanent Service for Mean Sea Level is a repository for tide gauge data used in the measurement of long term sea level change The PSMSL is based at the National Oceanography Centre in Liverpool England It was founded in 1933 as the IUGG Mean Sea Level Committee and adopted as a Permanent Service of the International Council for Science ICSU in 1958 1 The tide gauge data are freely accessible by all and consist predominantly of monthly mean and annual mean sea levels The primary Revised Local Reference data set has a continuous history of benchmark surveys for each gauge ensuring that sea level is measured relative to a known land based datum There is also a Metric data set without such datum control and a set of hourly and daily ocean bottom pressure data from the open ocean The latter has no datum control and the instruments are prone to calibration drift so the bottom pressure data are useful only for oscillations with periods significantly shorter than the length of an individual instrument deployment typically 1 year 2 The PSMSL is financially supported by the UK Natural Environment Research Council the International Council for Science World Data System and the Intergovernmental Oceanographic Commission See also editGlobal Sea Level Observing System Program to measure global sea levels Newlyn Tidal Observatory British tidal observatory David T Pugh British academic and marine scientist Philip Woodworth British oceanographer Proudman Oceanographic Laboratory former scientific laboratory in LiverpoolPages displaying wikidata descriptions as a fallbackReferences edit Rickards L Matthwes A Gordon K Tamisea M Jevrejeva S Woodworth P Bradshaw E 2015 Rickards et al 2013 Celebrating 80 years of the Permanent Service for Mean Sea Level PSMSL Proceedings of the International Association of Hydrological Sciences 365 1 5 doi 10 5194 piahs 365 1 2015 PSMSL Ocean Bottom Pressure processing procedures Retrieved 20 April 2017 External links editOfficial website nbsp This article about an international organization is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Permanent Service for Mean Sea Level amp oldid 1199927350, wikipedia, wiki, book, books, library,
