GLOSS Station Handbook

GLOSS Station Handbook – Brest

The GLOSS Station Handbook is currently being re-designed and upgraded.

Until a new version is available, the tide gauge station list below from the last version of the Handbook provides links to further details about each tide gauge in the GLOSS Core Network. Click the GLOSS number buttons to view the information. Click column headings to sort the table.


Station information

Gloss number242
Station nameBrest
Time zone015E, GMT + 1hrs
Latitude (+ve N)48.38333
Longitude (+ve E)-4.5
Observation periodsAcoustic/float 1807-unknown, Radar 2004-
Responsible countryFrance
Authority responsible for tide gaugeEPSHOM, B.P. 426, 13 rue du Chatellier, 29275 Brest Cedex, France
GLOSS contactFrance
Committed to GLOSSYes
Location map
Digital dataYes
Data held at national organisationYes
Real-time data availableYes
Additional parameters (real-time)None
Tide gauge benchmarkRepere A: repere no.1 NGF situe sur le polier est, pres de l'entree Nord du tunnel
Benchmark relationshipsRepere A = 5.589m
Repere B = 5.670m
Repere C = 5.481m
Repere D = 4.492m
Repere F = 4.807m
Repere G = 4.349m
Cote par rapport au zero NGF
Auxiliary benchmarksRepere B: repere no.2 NGF situe a l'entree Sud du tunnel du chateau.
Repere C: macaron no.0-o NGF scelle a droite de l'entree NW des souterrains du chateau.
Repere D: rivet no.0-I NGF scelle sur le quai a droite de la passerelle d'acces au maregraphe.
Repere G: echelle E3 - graduation 8.80m.
Data at PSMSL
Annual MSL (RLR) dataRLR 1
Annual MSL (RLR) plot
MSL methodDemerliac method for daily level, average of daily levels for monthly and yearly levels
PSMSL code1
Additional information
Other relevant informationOther benchmark:
Repere F: repere SH no.0 NGF situe sur la margelle du puits du maregraphe sans capuchon (installe par T.M. en 1963).
Met. data are held by Meteo France - centre departmental Finistere - aerodrome 29490 Guipavas.
Nearest Met. stationMeteo France - Guipavas statio
Last updated20 November 1997