GLOSS Station Handbook – Chatham Is.

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	128
Station name	Chatham Is.
Country	New Zealand
Time zone	180E, GMT + 12hr 45m
Latitude (+ve N)	-43.95
Longitude (+ve E)	-176.55
Ocean	Pacific
Responsible country	New Zealand
Authority responsible for tide gauge	NZ Ministry of Civil Defence, PO Box 5143, Wellesley St, Auckland, New Zealand
GLOSS contact	New Zealand
Committed to GLOSS	No
Operational	Yes
Location map
Instrumentation
Float	No
Pressure	No
Bubbler	Yes
Acoustic	No
Radar	No
Data
Digital data	Yes
Fast delivery data at UHSLC	Data 079 File format
High frequency data at UHSLC	Data 079a Document 079a File format
Real-time data available	Yes
Real-time data transmitted to GLOSS Fast Centre
Additional parameters (real-time)	None
Benchmarks
Tide gauge benchmark	Upper of 3 brass pegs set in the sea wall near the root of the Waitangi wharf.
Benchmark relationships	Tide Gauge Zero (TGZ) = 4.65m below upper of 3 brass pegs TGZ = 4.08m below middle of 3 brass pegs TGZ = 3.54m below bottom of 3 brass pegs
Auxiliary benchmarks	Aux 1. Middle of 3 brass pegs set in the sea wall near the root of the Waitangi wharf Aux 2. Bottom of 3 brass pegs set in the sea wall near the root of the Waitangi wharf
Data at PSMSL
Annual MSL (RLR) data	RLR 1920
Annual MSL (RLR) plot
MSL method	Extended harmonic analysis
PSMSL code	1920
Other relevant codes	UHSLC 079
Additional information
Other relevant information	A gauge has recently been installed at this site for Tsunami Warning project. At this point in time it is not related to any datum. It is hoped to relate the gauge in the near future to datum. Data are transmitted to the Pacific Tsunami Warning Center in Hawaii.
Last updated	5 December 1993