Data



Data Notes



Extracted from Database

20 May 2019

NUKU'ALOFA B

Station Information

Station ID: 1842
Latitude: -21.136806
Longitude: -175.180694
GLOSS ID: 125
Coastline code: 744
Station code: 2
Country: TONGA
Time span of data: 1993 – 2018
Completeness (%): 99
Link to ellipsoid: Available
Date of last update: 23 Jan 2019

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

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.

Tide Gauge Data

Plot of monthly mean sea level data at NUKU'ALOFA B.

Link to larger image of monthly data plot.
Download monthly mean sea level data.

Plot of annual mean sea level data at NUKU'ALOFA B.

Link to larger image of annual data plot.
Download annual mean sea level data.

Download metric sea level data. Use only with extreme caution.
NOTE: If some of the data are red in the plots above, the 'flag for attention' is set. Please see the documentation below.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: TONG
Nearby Real Time Stations from VLIZ: nkfa
Fast Delivery Data from UHSLC station 38: hourly and daily
Research Quality Data from UHSLC station 38: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1998-01-13

National Tidal Facility SEAFRAME station

Documentation added 2010-08-26

Supplying authority have confirmed that tide gauge zero is chart datum (1990). Tide gauge benchmark TON 1 is 2.0686 m above chart datum. RLR is defined as 8.0 m below TON 1

Data Authority

National Tidal Centre
Bureau of Meteorology
PO Box 421
Kent Town 5071
South Australia

Documentation added 2010-08-12

Formerly known as the National Tidal Facility