Please note: In many cases, the station position in our database is accurate
to only one minute. Thus, the tide gauge may not appear to be on the coast.
Using NOAA data the RLR diagram wa re-drawn. Primary benchmark is now 7150 A 1987 3.544m above gauge datum. Previous PSMSL benchmark BM 15 relates to NO 15 1964 in the NOAA report value 4.624m above gauge datum during Epoch 1960-1978. No value is given for this benchmark in Epoch 1983-2001.