Natural Hazards and Earth System Science www.nat-hazards-earth-syst-sci.net 1561-8633 1684-9981 9 3 2009 10.5194/nhess-9-927-2009 http://www.nat-hazards-earth-syst-sci.net/9/927/2009/ http://www.nat-hazards-earth-syst-sci.net/9/927/2009/nhess-9-927-2009.html http://www.nat-hazards-earth-syst-sci.net/9/927/2009/nhess-9-927-2009.pdf 927 934 2009-06-23 A survey of European sea level infrastructure P. L. Woodworth plw@pol.ac.uk L. J. Rickards B. Pérez Proudman Oceanographic Laboratory and British Oceanographic Data Centre, 6 Brownlow Street, Liverpool L3 5DA, UK Puertos del Estado, Avda. del Partenón, 10, Campo de las Naciones, 28042 Madrid, Spain This paper summaries findings from a survey of European sea level infrastructure (tide gauges, telemetry methods, ancillary information) conducted at the end of 2008 on behalf of the Tsunami Risk ANd Strategies For the European Region (TRANSFER), Tsunami Early Warning and Mitigation System in the North-Eastern Atlantic, the Mediterranean and Connected Seas (NEAMTWS), European Sea Level Service (ESEAS) and Global Sea Level Observing System (GLOSS) projects and programmes. Approximately 478 strategic tide gauges were found to be operational at this time, of which about three-quarters have near-real time data telemetry of various kinds. Around half of the gauges take part in real-time international data exchange. 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