Tide Gauge

Tida Gauge in Gandía, Spain (Credit: REDMAR)

Open Day on Sea Level Monitoring in Spanish State-Owned Ports Workshop 14 February 2024, online event organised by Puertos del Estado, Spain

Puertos del Estado is going to celebrate an Open Day Workshop with the main goal of reviewing the state-of-the-art technology in relation to the monitoring of sea level, agitation and other related parameters for its possible application to the Spanish state-owned ports.

The Open Day, which is an initiative open to all interested institutions and economic operators, is organized to promote technological innovation, disseminate novel instrumental developments for sea level monitoring, proactively stimulate public-private collaboration and eventually contribute to the future development of the REDMAR tide gauges network, managed by Puertos del Estado since 1992, and which currently consists of 41 stations deployed in Spanish ports of general interest.

In this sense, the event will be used to expose the roadmap associated with the renewal, improvement, and development of the REDMAR, including, for example, the installation of redundant sea level sensors, in line with the recommendations from the GLOSS (Global Sea Level Observing System) program.

Discover more information and the agenda here

Register at this link.

Tide Gauge Metadata Inventory 

Led by the EuroGOOS Tide Gauge Task Team, and part-funded by the H2020 EuroSea project, an online live, managed tide gauge metadata catalogue for all permanent tide gauges along European and adjacent coastlines in now in version 1.0 of its development. This Tide Gauge Metadata Inventory is designed to address inconsistencies and omissions in metadata across European tide gauge data portals, enabling tide gauge operators to populate a single centralised tide gauge inventory with comprehensive metadata, which can then be accessed by data portals and data aggregators to standardise their own metadata records.

The Tide Gauge Metadata Inventory  is now available for population by tide gauge operators!

Please address any queries on how to edit the information on the metadata inventory to Guy.westbrook AT marine.ie 

Sea level is a critical variable of our environment and has a high impact on coastal populations. Tide gauges are an important tool to determine trends in mean sea level, extreme conditions (and their relation to climate change), tidal computation, geodetic applications, harbour operations and navigation, as well as sea level hazards warning systems (tsunamis and storm surges).

Recognizing this critical and increasing need of tide gauge data, EuroGOOS Tide Gauge Task Team is bringing together the tide gauge communities in the European and adjacent seas. The EuroGOOS Tide Gauge Task Team compiles information on existing sea level networks, advises operators and scientists, and supports national and regional sea level initiatives towards enhanced and sustained system.

EuroGOOS Tide Gauge Task Team is a European network of tide gauge platforms. The Task Team assists its members with operational requirements, such as standardization of tide gauge operations, data and applications of multi-purpose networks, based on the Global Sea-level Observing System (GLOSS) and the requirements set by the Intergovernmental Coordination Group for the Tsunami Early Warning and Mitigation System in the North-eastern Atlantic, the Mediterranean and connected seas (ICG/NEAMTWS). It sets out a framework for collation of a single database describing the in-situ monitoring equipment and its status across Europe. Task Team members share success stories and discuss common challenges, including analysis of the funding strategies and importance placed on this work in different countries.

The EuroGOOS Tide Gauge Task Team works to:

  • Promote the integration of tide gauges in European initiatives and identify relevant products required by sea-level data users;
  • Link national agencies of tide gauge operators with data providers acting as the European component in GLOSS;
  • Promote research and tests of new sea-level monitoring technologies;
  • Promote the recovery of historical data and related studies;
  • Contribute to the development of the European Ocean Observing System (EOOS) with the identification of duplication and/or gaps in the geographical coverage and in the existing sea level data portals in Europe.

At the operational level, the Tide Gauge Task Team:

  • Acknowledge existing data portals and ensure data availability according to the different  applications;
  • Promote the co-localisation and use of additional instrumentation relevant for sea level applications such as ocean bottom pressure sensors, land movement monitoring stations (GNSS), atmospheric parameters, and tsunami sensors;
  • Ensure the implementation of new requirements on sea-level quality control and data processing;
  • Provide recommendations (from operators to end-users) on data requirements and interoperability, quality control, complementary instrumentation (through interaction with other groups, e.g.  GNSS).

List of Members


  • Angela Hibbert, National Oceanography Centre (NOC), United Kingdom 
  • Elizabeth Bradshaw, British Oceanographic Data Centre (BODC), United Kingdom
  • Claire Fraboul, SHOM, France


  • Sara Almeida, Hydrographic Institute (IH), Portugal
  • Alessandro Annunziato, Joint Research Centre (JRC Ispra Site), Italy
  • Dora Carinhas, Hydrographic Institute (IH), Portugal
  • Thomas Hammarklint, Swedish Maritime Administration (SMA), Sweden
  • Francisco Hernández, VLIZ, IOC Sea Level Station Monitoring Facility, Belgium 
  • Begoña Pérez, Puertos del Estado, Spain
  • Vibeke Huess, Danish Meteorological Institute (DMI), Denmark
  • Anna von Gyldenfeldt, Federal Maritime and Hydrographic Agency (BSH), Germany
  • Per Knudsen, Technical University of Denmark (DTU), Denmark
  • Marta Marcos, Mediterranean Institute for Advanced Studies (IMEDEA), Spain
  • Marco Picone, Sara Morucci, Arianna Orasi, Italian Institute for Environmental Protection and Research (ISPRA), Italy
  • Fabio Raicich, Institute of Marine Science (CNR-ISMAR) Italy
  • Oda Roaldsdotter Rovndal, Norwegian Mapping Authority, Norway
  • Laurent Testut, Laboratory of Space Geophysical and Oceanographic Studies (LEGOS), France
  • Martin Verlaan, Deltares, Netherlands 
  • Iviça Vílibic, Croatian Institute of Oceanography and Fisheries (IZOR), Croatia
  • Guy Westbrook, Deirdre Fitzhenry, Marine Institute (MI), Ireland
  • Guy Wöppelmann, La Rochelle Université, France

EuroGOOS Tide Gauge Task Team Terms of Reference 


Tide Gauge TT ToR 299.65 KB

Past Events and Workshops:

The first EuroSea Tide Gauge Network Workshop took place on 12-14 January 2021. The event brought together the global tide gauge community to share experiences, exchange information on recent activities, and discuss ways to overcome challenges across different geographical regions while ensuring effective coordination and communication with GLOSS. The workshop, organized by the EuroGOOS Tide Gauge Task Team and hosted by EuroGOOS,  marked the first of the two workshops held within the framework of the EuroSea project under the EU Horizon 2020 programme. 

Agenda and presentations are available HERE.

International Workshop on Sea-Level Measurement Technologies, 4 November 2016, La Rochelle, France.

Agenda and presentations are available HERE

Task Team Documents and Reports:

  • Coastal sea level stations providing geocentric sea level data and vertical land movement information for a better assessment of sea level rise. Report prepared for the EEA. Access HERE
  • EuroGOOS-SONEL GNSS@TG metadata campaign, 3/03/2021
  • EuroGOOS Tide Gauge Task Team annual meeting, 1-2/07/2020
  • Sea Level Futures Workshop, 2-4/07/2018, Liverpool
  • Recommendations for Copernicus Marine Service (CMEMS) on standard NetCdf format for tide gauge data
  • European sea-level monitoring, EuroGOOS Tide Gauge Task Team poster, 10-14/07/2017, New York
  • International Workshop on Sea-level Measurement Technologies and Side-Event on Altimetry, 3-4/11/2016, La Rochelle