december and annual means for 1990 revised March 1997
Documentation added 2012-09-17
From Malaysian publication Tidal Observation Records 2010 the Primary benchmark is BM D0354 5.964m above gauge datum. Orignal value for the benchmark/datum relationship was 5.966m. There is a comment on the old RLR diagram from September 1999 that BM D0354 is 5.964m relative to TGZ. The RLR factor has now been changed to 4.789m and the data amended.
Department of Survey and Mapping Wisma JUPEM Jalan Semarak 50578 Kuala Lumpur