=========================== 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 04-Jul-2014 There were two visits by TGI to Portrush during 2013. 14.01.2013 when a new GSM antenna to improve data retrieval was fitted together with new DQ cards and again on 12.09.2013 when general and diving maintenance was carried out. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 02-Jun-2015 From June-Sept data values were ~25mm high then from Oct-Dec there were problems with blocking. TGI were at site 13.05.14 for general maintenance and change the compressor and 13.08.14 again for general maintenance and an inspection dive.