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.
Nearby GNSS Stations from SONEL: ADDU
Nearby Real Time Stations from VLIZ: ganm
Fast Delivery Data from UHSLC station 109: hourly and daily
Research Quality Data from UHSLC station 109: hourly and daily
instrument type: analog (L&S); digital (F&P,ENC,ENB (03/1987-10/1988) Leupold and Stevens Analog gauge;(10/1988-06/1990) Fischer and Porter Analog-to- Digital Recorder;(1992-) Handar 436-A, Encoder (ENC);(1992-) Handar 436-B (ENB) float gauges
Documentation added 2010-11-18
Complete dataset 1987-2009 received from UHSLC. These were checked against existing data values - they appear to be the same up until data following the gap Sept. 2002 after which the revised values are approx. 8mm lower. Complete dataset has been entered onto the database. RLR remains 5.490m
Documentation added 2013-10-15
Complete UHSLC dataset 1987-2012 added. Several revised data points throughout the data.
Documentation added 2015-10-29
The complete updated JASL data through to 2014 has been loaded onto the database. Data supplier has also been updated from the Meteorological Station, Maldives to UHSLC.
Documentation added 2015-12-08
After consulting the UH levelling sheets it became apparent that the original RLR diagram was prepared using the figures from the first levelling in 1987.The original benchmark '2' has since been destroyed. Primary benchmark since the 2002 levelling and stable through to the 2012 levelling is BM 4 3.656m above the Tide Staff Zero.
Data Authority
University of Hawaii Department of Oceanography Division of Natural Sciences 1000 Pope Road Honolulu Hawaii 96822