=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991 Aberdeen II 170/012 RLR(1965) is 10.4m below TGBM NJ9558 0581 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993 Aberdeen II 170/012 RLR(1965) is 10.4m below TGBM NJ9558 0581 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 16-Aug-1995 The two Aberdeen records are because one (170/011) is MSL and the other (170/012) is MTL (Mean Tide Level). There is a systematic 14 mm difference in datum between the two which can be determined from the period of overlap - see 'Trends in UK mean sea level' by P.L.Woodworth, Marine Geodesy, 11, 57-87, 1987. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 25-Nov-1996 Correspondence between MSL and MTL (series 170/011 and 170/012) is poor around 1948 because of many missing days. =========================== 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/