GLOSS Station Handbook
Station information sheet
General | |
GLOSS number | 271 |
Station name | Fort Dauphin (Taolanaro) |
Country | Madagascar |
Time zone | 045E, GMT + 3hrs |
Latitude (+ve N) | -25.01666 |
Longitude (+ve E) | 47 |
Ocean | Indian |
Observation period(s) | 1991- |
Responsible country | Madagascar |
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 contact | Madagascar |
Committed to GLOSS | Yes |
Operational | Yes |
Location map | ![]() |
Instrumentation | |
Float | Yes |
Pressure | No |
Bubbler | No |
Acoustic | No |
Radar | No |
Data | |
Digital data | Yes |
Data acquisition rate | continuous recording, filtered to hourly data. |
Real-time data available | No |
Benchmarks | |
Tide gauge benchmarks | Hydro-benchmark situated on the top of the well |
Benchmark relationships | Tide 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 benchmarks | Rivet set on the beacon in front of the gauge, 3.81m above zero hydrographic |
Data at PSMSL | |
MSL method | Doodson X0 filter |
Additional information | |
Other relevant information | The 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 updated | 1998-01-28 |