GLOSS Station Handbook – Rarotonga

The GLOSS Station Handbook is currently being re-designed and upgraded.

Until a new version is available, the tide gauge station list below from the last version of the Handbook provides links to further details about each tide gauge in the GLOSS Core Network. Click column headings to sort the station list table. Click the GLOSS number buttons to view the station information.

Station information

General
Gloss number	139
Station name	Rarotonga
Country	Cook Islands
Time zone	150W, GMT - 10hrs
Latitude (+ve N)	-21.2
Longitude (+ve E)	-159.76666
Ocean	Pacific
Observation periods	Float gauge 1977-; Acoustic gauge 1993-
Responsible country	Australia
Authority responsible for tide gauge	National Tidal Centre, Australia (see GLOSS Contact Points).
GLOSS contact	Australia
Committed to GLOSS	Yes
Operational	Yes
Location map
Instrumentation
Float	Yes
Pressure	No
Bubbler	No
Acoustic	Yes
Radar	No
Data
Digital data	Yes
Additional parameters	Barometric pressure, water and air temperature, wind speed and direction.
Data acquisition rate	6 minute intervals
Fast delivery data at UHSLC	Data 023 File format
High frequency data at BODC	Data 139 Document 77230 Document 57345
High frequency data at UHSLC	Data 023a Data 023b Document 023a Document 023b File format
Real-time data available	Yes
Real-time data transmitted to GLOSS Fast Centre
Additional parameters (real-time)	None
Benchmarks
Tide gauge benchmark	CT/1: triangular stamp (steel pin) with '1' at centre of concrete emplacement; located across street from tide house in parking area of courtyard of govt house near flagpole. Fixed within island wide survey.
Auxiliary benchmarks	UH-1: SS pin in concrete emplaced about 10ft W of tide staff at edge of quay, about 2ft from water on cement slab, which seems to be sinking. UH-2: 1 inch SS disc, no stamp, emplaced in concrete about 10ft E of tide staff on finger pier. Not locatable in Feb. 1992 - destroyed. UH-4: 1 inch square SS on top of pin set in white epoxy in cement, located near the closest corner of bldg to right, facing away from sea.
Data at PSMSL
Annual MSL (RLR) data	RLR 1843 RLR 1453
Annual MSL (RLR) plot
MSL method	Hourly means
PSMSL code	1843
Other relevant codes	NTF port no. 65980, UHSLC 023
Additional information
Other relevant information	Backup gauges on site: 1) Leupold Stevens ADR (December 1984-) 2) Handar encoder ADR (December 1984-) Daily values calculated using 119-point convolution filter (Bloomfield, 1976) centred on noon applied to the hourly data with respective periods of the 95, 50 and 5% amplitude points at 124.0, 60.2 and 40.2 hours.
Last updated	16 October 2002