EUROPEAN SEA LEVEL OBSERVING SYSTEM Station Information Sheet GLOSS Number Station name Llandudno Country UK Time zone 000E, GMT Latitude 53.3148 Longitude -3.8237 Ocean/sea Atlantic/ Responsible country UK Committed to GLOSS No Operational? Yes Point of contact Lesley Rickards, British Oceanographic Data Centre CCMS Proudman Oceanographic Laboratory Bidston Observatory Birkenhead Merseyside L43 7RA UK Tel: +44 (0) 151 653 8633 Fax: +44 (0) 151 652 3950 E-mail: ljr@ccms.ac.uk WWW: http://www.pol.ac.uk/bodc/bodcmain.html Authority responsible British Oceanographic Data Centre for tide gauge CCMS Proudman Oceanographic Laboratory, Bidston Observatory Birkenhead Merseyside L43 7RA UK Gauge servicing interval Gauge servicing agency Serviced by Tide Gauge Inspectorate at CCMS POL Observation periods 1971, 1994- Gauge type pressure transducer + pnuematic bubbler Sampling rate 15 minutes Digital data Yes Real time data No Storm surge warning gauge No Additional parameters Any other parameters MSL method Submission to PSMSL Yes PSMSL data holdings Other data banks Additional information Tide gauge benchmark description TGBM SH 7834 8292 Rivet stone butt gate ent Frequency of levelling Tide gauge zero relative to EUVN Tide gauge zero relative to national levelling datum Tide gauge zero relative to 8.708 over ODN tide gauge benchmark Auxiliary benchmark description AUX 1:SH 7827 8255 OSBM bolt concrete step SE side of slip, 5.273m, AUX 2: SH 7840 8243 OSBM bolt bottom of concrete step, 3.592m, AUX 3: SH 7864 8229 OSBM bolt concrete ramp, 6.5 m NW C slip 5.596 REFBM: SH 7860 8321 Rivet concrete jetty 5.0m E angle 6.238m Permanent GPS within 1 km No EUREF code Campaign GPS Geological substrate Gauge signal likely to be affected by river outflow, density changes etc Any other information