GLOSS Station Handbook

Station information sheet

GLOSS number33
Station name


CountrySri Lanka
Time zone82.5E, GMT + 5.5hrs
Latitude (+ve N)6.93333
Longitude (+ve E)79.85
Observation period(s)1934-1957, 1953-1965, 1989-
Responsible countrySri Lanka
Authority responsible
for tide gauge
Dr. M. Merrifield, University of Hawaii, Dept. of Oceanography, 1000 Pope Road MSB 307, Honolulu, Hawaii 96822, U.S.A.
GLOSS contactSri_Lanka
Committed to GLOSSNo
Location mapView location map for GLOSS station Colombo
Digital dataYes
Data acquisition rateHourly intervals
High frequency data at UHSLCDownload from UHSLC   Download documentation qa115a.dmt from UHSLC   Download from UHSLC   Download documentation qa115b.dmt from UHSLC   Format documentation for UHSLC data
Real-time data availableNo
Data at PSMSL 
Annual MSL (RLR) dataYes (Monthly metric data only available)
MSL methodaverage of daily values
PSMSL code1755
Other relevant codesUHSLC 115
Additional information 
Other relevant informationDaily 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 updated2002-12-11

Related BODC pages

Sea level portal      World Ocean Circulation Experiment (WOCE) — Sea  level
UK Tide Gauge Network     Climate Variability and Predictability (CLIVAR)
GLOSS project page  


Related external links

Global Sea Level Observing System (GLOSS)     Permanent Service for Mean Sea Level (PSMSL)
University of Hawai`i Sea Level Centre (UHSLC)  World Ocean Circulation Experiment (WOCE)


Permanent Service for Mean Sea Level (PSMSL) Global Sea Level Observing System (GLOSS) Station Handbook Intergovernmental Oceanographic Commission (IOC)