=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 20-Jul-1994 Gauge is an "A Class" bubbler maintained by POL. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 25-Apr-2000 Islay (Port Ellen) 170/244 RLR(1993) is 9.4m below TGBM NR 3635 4507 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 02-Jan-2001 Recent work on vertical land movements in the UK can be found from the University of Nottingham web site: http://ukcogr.iessg.nottingham.ac.uk/~eosi/ =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 30-Jul-2009 The tide gauge at Port Ellen is sinking. This is because the quayside has been gradually collapsing since 2005. The TGI are aware of the problem and intend to re-site the gauge. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 19-Oct-2009 The measuring system at Port Ellen has had to be relocated due to the harbour wall subsiding. The new location is 2m from the original location and the measuring system is mounted on steel piling. A mid-tide sensor has also been added and levelling completed. Values are Full tide sensor -570mm ACD Mid-tide sensor +475mm ACD All other parameters remain the same. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 02-Jul-2014 Last data avalable for Islay is January 2011. The tide gauge has been removed from the network due to harbour re-development. Work on a replacement installation has begun and is ongoing.