Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

GLOSS Station Handbook

Station information sheet

GLOSS number271
Station name

Fort Dauphin (Taolanaro)

Time zone045E, GMT + 3hrs
Latitude (+ve N)-25.01666
Longitude (+ve E)47
Observation period(s)1991-
Responsible countryMadagascar
Authority responsible
for tide gauge
Department d'Oceanographie Physique et Chimique (C.N.R.O.), BP 68 (207) Nosy-Be, Madagascar Tel: 86 613 73
GLOSS contactMadagascar
Committed to GLOSSYes
Location mapView location map for GLOSS station Fort Dauphin (Taolanaro)
Digital dataYes
Data acquisition ratecontinuous recording, filtered to hourly data.
Real-time data availableNo
Tide gauge benchmarksHydro-benchmark situated on the top of the well
Benchmark relationshipsTide gauge zero (TGZ) = zero hydrographic TGZ = 2.78m below TGBM TGBM = 1.03m below benchmark BM: rivet set on the beacon in front of the tide gauge hut
Auxiliary benchmarksRivet set on the beacon in front of the gauge, 3.81m above zero hydrographic
Data at PSMSL 
MSL methodDoodson X0 filter
Additional information 
Other relevant informationThe tide gauge has been adjusted by direct surveying with the hydrographic zero reference. The zero of tide state coincides with the hydrographic zero reference.
Last updated1998-01-28

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)