=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 02-May-1995 Station density along some sections of the Australian coast has meant that station codes 601 onwards have been re-ordered compared to those in earlier versions of the PSMSL data set. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 20-May-1996 Data 1928-1936 was supplied by Dept. of Public Works, Sydney, N.S.W. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Aug-2010 Current data supplier N.T.C. has confirmed that vertical reference frame for data from 1985 is AHD (Australian Height Datum). Tide gauge benchmark SSM 38357 is 4.346 m above AHD. RLR(2008) has been defined as 10.4 m below SSM 38357