May 1974-October 1985: primary gauge=Fischer and Porter October 1985-December 1994: primary gauge=Leupold and Stevens
Documentation added 1998-01-12
4 January 1995: Aquatrak acoustic gauge (SEAFRAME) installed by the National Tidal Facility. This is now the primary gauge.
Documentation added 2000-04-11
All data up to and including 1998 has been received from the UHSLC so the supplying authority has been changed to UHSLC. From the UH levelling sheet the RLR diagram was produced using the 1983 levelling information. Primary benchmark UH 1 12.791ft(3.899m) above the datum. The value remained the same for the 1986 levelling but became unstable from the 1988 levelling onwards.
University of Hawaii Department of Oceanography Division of Natural Sciences 1000 Pope Road Honolulu Hawaii 96822