Date (Creation)

2010-01-01T00:00:00

Citation identifier

FR-DCSMM-PDS-BD_REFMAR

Presentation form

Digital profile

Purpose

REFMAR meets the objectives required of SHOM and defined in the Prime Minister’s instructions relating to observing the sea level and managing and distributing the resulting data, that is to say:

• Coordinating the collection of sea level observations recorded by public services and establishments ;

• Managing and archiving the collected observations;

• Defining the networks and minimum observation specifications for sea levels;

• Defining and promoting suitable operational transmission methods;

• Coordinating the real-time and staggered distribution of observations;

• Checking conformity of observations received;

• Defining, distributing, promoting and monitoring national and international standards (GLOSS) ;

• Contributing to representing France in international and EU observation organisations

Credit

Data producers : Le SHOM

Status

On going

Point of contact

Organisation name	Individual name	Electronic mail address	Role
SHOM	POUVREAU Nicolas	nicolas.pouvreau@shom.fr	Point of contact

Maintenance and update frequency

Continual

Maintenance note

Network Duration: perennial Network

Theme

• Network

• Observation

• Sea level

• Water level

• Tide

• Maritime Field

• Tide Gauge

GEMET - INSPIRE themes, version 1.0

• Environmental monitoring facilities

Sous-regions marines

• National

DCSMM : Type d'espace concerné

• Pas d'espace particulier concerné

DCSMM : Descripteurs

• D7: Hydrographical Conditions

DCSMM : Méthodes de recueil des données

• Observation par point

• Observation directe

Thèmes Sextant

• /Human Activities/Ocean Observation Network

Centre de données ODATIS

• CDS-IS-Shom

Type de jeux de donnée ODATIS

• Observational data

Thèmatiques ODATIS

• Monitoring system

Thématiques - SIMM

• Research

• /Environmental Status/Hydrodynamics

ODATIS aggregation parameters and Essential Variable names

• Sea surface height

Keywords

• DCSMM

• hvd

High-value dataset categories

• Observation de la terre et environnement

Access constraints

Other restrictions

Other constraints

Free access

Use limitation

Visualisation and download.

Data is available after signing up, and account validation.

For further information, please see : http://refmar.shom.fr/fr/ acces-aux-donnees

Spatial representation type

Vector

Denominator

50000

Language

Français

Character set

UTF8

Topic category

• Oceans

Supplemental Information

Project leader :

SHOM 2010

Prime contractor :

SHOM 2010

Backer :

Minister of the Environment 2010

Ministry of Interior 2010

SHOM 2010

Reference system identifier

EPSG / WGS 84 (EPSG:4326) / 7.9

Topology level

Geometry only

Geometric object type

Complex

Geometric object count

0

OnLine resource

Protocol	Linkage	Name
WWW:LINK	http://refmar.shom.fr/fr	REFMAR

Hierarchy level

Dataset

Statement

1679 : First systematic sea level observations by Picard and de La Hire in Brest.

1701 : The first protocol appears in MHARS for sea level observation methods

1806 : Sea level observations carried out in Brest as ordered by Laplace and Bureau des Longitudes

1844 : Installation of the first tide gauge in France (Toulon) by hydrographic engineer Chazallon, marking the beginning og the first French mainland tidal network (7 tide gauges in 1860).

1880 : New tidal networks managed by other organisations begin to appear (levelling services, ports, etc.)

1920 : Disappearance of the first tidal network. The only remaining tide gauge from the network is to be found in Brest

1992 : Launch of RONIM (33tide gauges at present).

1993 : Installation of the first ROSAME tide gauge (4 at present).

2009 : The SHOM launches a new tidal data base.

2010 : The French Prime Minister signs an instruction relating to observing the sea level and managing and distributing the resulting data. Launch of REFMAR

Number of observation or measurement points :

74 permanent tide gauges (as of 16/10/2012), of which 42 are in mainland France.

Different tide gauges have been used since they were first introduced :

- Tide scale : 1679-

- Mechanical tide gauge : 1844-1992

- Acoustic Sensor tide Gauge (MCN) : 1992-2004

- Radar Tide Gauge (MCN) :2004-

The MCN is equipped with a range finder. This range finder, installed above the surface, acts as an ultrasonic transducer or an electromagnetic (radar) wave range finder. The range finder emits a short series of impulses and detects the reflected signal.

Description

Data is stored in an acquisition station, and can be retransmitted at any time to the SHOM via the telephone network. Data is also transmitted via the Internet in real-time from the tide gauge or to meteorological satellites when they are part of a warning system.

Each data-producing organisation is responsible for checking the quality of these measurements (validation), and processing them; the SHOM is responsible for archiving and distributing this data.

Description

Data type :

Coastal hydrodynamics

Measured or observed parameters :

Water level according to the weather

Parameters resolution : Accuracy : to nearest 2cm

Update frequency : Almost real-time (updated hourly), and at high frequency (1 data item per minute) for observations equipped with real-time transmission.

Observation frequency : Continuously, or once/24h, or once/6 months

Description

Sampling method : Spatial

Description

Device associated : RONIM, SONEL, TDB, MERCATOR, PREVIMER, SOAP

Metadata

File identifier

7e1810b9-15a9-4766-b682-79c74861fbf9 XML

Metadata language

Français

Character set

UTF8

Hierarchy level

Series

Date stamp

2024-06-13T13:34:44.014Z

Metadata standard name

ISO 19115:2003/19139 - SEXTANT

Metadata standard version

1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Sextant		sextant@ifremer.fr	Point of contact

Other language

Language	Character encoding
English
French	UTF8