Date (Creation)

1992-01-01T00:00:00

Citation identifier

FR-DCSMM-PDS-BD_RONIM

Presentation form

Digital profile

Purpose

The project aims to distribute the network’s data to users both in real-time and non real-time.

Measuring the water level along the coast is important for many reasons: to ensure safe navigation at the entrance to ports and channels, to improve tide predictions and hydrodynamic models, to establish the lowest tide for hydrographic maps, to study changes in the average sea level for the oceans, to contribute to the international GLOSS project, to calibrate Topex-Poséidon, ERS and Jason altimetric radars, to reduce bathymetric surveys, to comprehensively manage the coastline, to statistically study storm surges and low tides and other extreme levels, to provide operational coastal oceanographic forecasts, to study and forewarn of natural disasters (storms and tsunamis).

Credit

Data producers : The SHOM operates the RONIM network

Status

On going

Point of contact

Organisation name	Individual name	Electronic mail address	Role
SHOM	Claire Fraboul	claire.fraboul@shom.fr	Point of contact

Maintenance and update frequency

Continual

Maintenance note

Network Duration: perennial Network

Theme

• Network

• Observation

• Tide gauge

• Sea level

• Average Sea level

• Water level

• Tide

• Storm surge

• Submersions

• Tsunamis

• Climate change

• Marégraphes

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 directe

• Observation par point

Thèmes Sextant

• /Physical Environment/Hydrodynamics/Tide

Centre de données ODATIS

• CDS-IS-Shom

Type de jeux de donnée ODATIS

• Observational data

Thèmatiques ODATIS

• Observation system for research

Thématiques - SIMM

• Research

• /Environmental Status/Hydrodynamics

ODATIS aggregation parameters and Essential Variable names

• Sea surface height

• Tides

Keywords

• DCSMM

• hvd

High-value dataset categories

• Observation de la terre et environnement

Access constraints

Other restrictions

Other constraints

Free access

Use limitation

Property SHOM

Models to be viewed online

Spatial representation type

Vector

Denominator

50000

Language

Français

Character set

UTF8

Topic category

• Oceans

Supplemental Information

Project leader :

SHOM

Prime contractor :

SHOM

Backer :

SHOM 1992

Ministry for Foreign Affairs 2007

Interior Ministry 2009

Environment Ministry 2009

Europe (INTERREG IV) 2010

Reference system identifier

EPSG / WGS 84 (EPSG:4326) / 7.9

Topology level

Geometry only

Geometric object type

Complex

Geometric object count

0

Hierarchy level

Dataset

Statement

1992 : RONIM Launched

1998 : 1st radar tide gauge

Since 2001 : Participation in the SONEL which studies average sea levels (www.sonel.org).

2005 : 1st radar tide gauge set up in an overseas territory (6 in 2009)

Since 2006 : Partnership with the Previmer project : www.previmer.org

Since 2007 : Contribution to the tsunami warning system in the Indian ocean (CNATOI)

2009 : Contribution to the implementation of the national tsunami warning centre in the Mediterranean and North-East Atlantic in partnership with the CEA (CRATANEM-CENALT)

2010 : Contribution to the sunami warning system in the Caribbean, in partnership with the IPGP (INTERREG IV TSUAREG project)

2010 : Distribution of water level data on the refmar.shom.fr web portal

2011 : Contribution to the Wave and Submersible Vigilance Programme (VVS) in partnership with Météo France.

2011 : Participation in the HOMONIM project in partnership with Météo France with a view to improving operational coastal hydrodynamic modelling tools used to minimize and prevent risks.

Number of observation or measurement points : 43 tide gauges have been installed to date (11/10/2012) with 8 in overseas territories, 1 in Monaco and one in the port of Toamasina (Madagascar). 6 additional tide gauges will be installed between now and 2018.

Raw (non-validated) data sampled every 10 minutes is stored in an acquisition centre and transferred daily, via the telephone network, to the SHOM. Every three months, the SHOM validates and archives this sampled data and makes it available.

In parallel, the raw (non-validated) data sampled every minute is transferred in real-time from the tide gauge to the Internet (REFMAR portal), or to meteorological satellites when the contribute to a warning system (Submersible Vigilance Programme (VVS) in partnership with Météo France, National Tsunami Warning System for the Mediterranean and North-East Atlantic with the CEA, etc.).

Description

In 1992, the SHOM decided to implement a network of permanent tide gauges along the French coast, known as digital coastal tide gauges (MCN).

MCN is equipped with a radar gauge, places above the water surface. The tide gauge measures the water level by emitting a short series of impulses and detecting the reflected signal. The measurement is then averaged at the acquisition centre and sent to the SHOM in real-time.

For further information, please visit: http://www.shom.fr/les-activites/ activites-scientifiques/maree-et-courants/marees/maregraphes- cotiers/

Description

Data type : Coastal hydrodynamics

Measured or observed parameters : water level

Parameters resolution : Accuracy : 2cm

Update frequency : Near real-time via the refmar.shom.fr portal (updated hourly)

Observation frequency : 1 measurement per minute

Description

Sampling method : Spatial

Description

device associated : REFMAR, PREVIMER, SONEL, TDB, SOAP

Description

Measurements from the RONIM network (raw data in real-time which is later validated by the SHOM) is available on the REFMAR system data server at the following address : http:// refmar.shom.fr

Real-time data is made available in favour of the UNESCO Intergovernmental Oceanographic Commission programmes and can be viewed on its "Sea level station monitoring facility" website.

It can also be accessed on the Previmer demonstrator http:// previmer.org

Metadata

File identifier

7edd86b8-a9d1-4288-bd50-0f3c350095f1 XML

Metadata language

Français

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2024-06-13T13:35:08.703Z

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