GLOSS Station Handbook

Station information sheet

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General                                  
GLOSS number46
Station name

Cocos Is. (Keeling)

CountryAustralia
Time zone097.5E, GMT + 6.5hrs
Latitude (+ve N)-12.7
Longitude (+ve E)96.9
OceanIndian
Observation period(s)Float Gauge 1985-1994; Acoustic 1992
Responsible countryAustralia
Authority responsible
for tide gauge
National Tidal Centre, Australia (see GLOSS Contact Points).
GLOSS contactAustralia
Committed to GLOSSYes
OperationalYes
Location mapView location map for GLOSS station Cocos Is. (Keeling)   View location map for GLOSS station Cocos Is. (Keeling)
Instrumentation 
FloatYes
PressureNo
BubblerNo
AcousticYes
RadarNo
Data
Digital dataYes
Additional parametersbarometric pressure, water/air temperature, wind speed & direction
Data acquisition rate6 minute interval
Fast delivery data at UHSLCDownload h171.dat from UHSLC   Format documentation for UHSLC data
High frequency data at BODCDownload g046.zip from BODC   View Cocos Is. (Keeling) site history   View BODC document #57638   View BODC document #58139  
High frequency data at UHSLCDownload h171a.zip from UHSLC   Download documentation qa171a.dmt from UHSLC   Format documentation for UHSLC data
Real-time data availableYes
Additional parameters (real-time)barometric pressure, water/air temperature, wind speed & direction
Benchmarks 
Tide gauge benchmarksPSM 101: brass plaque in concrete at the base of the jetty on Home Is.
Benchmark relationshipsTide Gauge Zero (TGZ) = 2.410m below PMS 101. TGZ = 0.784m below Home Island Datum (approx. mean sea level)
Auxiliary benchmarksPSM 91: brass plug in concrete wharf (northern wall), Home Island. Trig R379: An RA Survey brass plaque stamped R379 set in concrete at ground level, situated on the most SW point of Home Island, adjacent to the Clunies Ross Residence.
Data at PSMSL 
Annual MSL (RLR) dataDownload annual MSL (RLR) data for Cocos Is. (Keeling)
Annual MSL (RLR) plotView annual MSL (RLR) plot for Cocos Is. (Keeling)
MSL methodHourly means
PSMSL code983
Other relevant codesNTF port no. 46280, UHSLC 171
Additional information 
Other relevant informationFloat/stilling well gauge (1961-1965) located on original jetty West Is. Float/stilling well gauge (1968-1971) located near jetty, West Is. Geocentric measurements: Doppler observations 1969 ISTS 040 on West Is. PSMSL also hold data from another gauge at Cocos Island (Keeling) (PSMSL Code 680/522, 1985-1987).
Nearest Met. stationCocos Island Airport (West Is)
Last updated2002-10-16
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