Station Information

Station ID: 983
Latitude: -12.116694
Longitude: 96.894417
Coastline code: 680
Station code: 521
Time span of RLR data: 1993 – 2023
RLR completeness (%): 99
Time span of metric data: 1961 – 2023
Metric completeness (%): 60
Date of last update: 01 Feb 2024

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.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: COCO
Nearby Real Time Stations from VLIZ: cocb
Fast Delivery Data from UHSLC station 171: hourly and daily
Research Quality Data from UHSLC station 171: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1991-11-13

Data for 1969 was supplied by the National Tidal Centre, Bureau of Meteorology, South Australia based on hourly values

Documentation added 1995-05-02

Station density along some sections of the Australian coast has meant that station codes 601 onwards have been re-ordered compared to those in earlier versions of the PSMSL data set.
Data for 1961-1962 was supplied by Australian Ocean Data Centre N.S.W.These data are based on High and Low water readings.

Documentation added 1996-03-28

Revised data for 1985-1990 was supplied by the National Tidal Centre, Bureau of Meteorology, South Australia. SEAFRAME station installed 04/09/92. Cocos (Keeling) Is. is a cooperative station between NTF and NOAA/NOS

Documentation added 1998-01-20

1985-1992: gauge type=Float/well system Stevens analog-to-digital recorder

Documentation added 1998-01-21

1961-65: float/stilling well gauge located on original jetty West Is. 1968-71 float/stilling well gauge located near jetty, West Is.

Documentation added 2000-04-10

This is a "baseline station" of the Australian National Tidal Facility.

Documentation added 2000-04-10

Cocos Is.(Home Is.) 680/521 RLR(1996) is 8.604 below PSM101

Documentation added 2011-10-27

Using metadata from the National Tidal Centre, Australia the RLR diagram has been revised. Primary benchmark is SEAFRAME sensor benchmark 3.554m above Tide Gauge Zero (TGZ). RLR factor is 6.20m.

Documentation added 2019-01-23

Data values for March, May, July, August and September 2016 have been revised.

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