GLOSS Station Handbook

Station information sheet

GLOSS number27
Station name


Time zone075E, GMT + 5hrs
Latitude (+ve N)-0.7
Longitude (+ve E)73.16666
Observation period(s)1987-
Responsible countryU.S.A.
Authority responsible
for tide gauge
Meteorology Station, Addu Development Authority, Gan, Republic of Maldives
GLOSS contactMaldives
Committed to GLOSSNo
Digital dataYes
Data acquisition rateHourly intervals
Fast delivery data at UHSLCDownload h109.dat from UHSLC   Format documentation for UHSLC data
High frequency data at BODCDownload from BODC   View Gan site history  
High frequency data at UHSLCDownload from UHSLC   Download documentation qa109a.dmt from UHSLC   Format documentation for UHSLC data
Real-time data availableYes
Real-time data transmitted
to GLOSS Fast Centre
Real-time data plots from UHSLC
Data at PSMSL 
Annual MSL (RLR) dataDownload annual MSL (RLR) data for Gan
Annual MSL (RLR) plotView annual MSL (RLR) plot for Gan
MSL methodaverage of daily values
PSMSL code1707
Other relevant codesUHSLC 109
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. PSMSL hold data from another gauge at Gan (PSMSL Code 454/001 1962-1963)
Last updated1993-12-05

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)