ACCSEAS Accessibility for Shipping, Efficiency Advantages and Sustainability
AtoN Aid(s) to Navigation
CIL Commissioners of Irish Lights
ENAV e-Navigation is the harmonised collection, integration, exchange, presentation and analysis of maritime information onboard and ashore by electronic means to enhance berth to berth navigation and related services, for safety and security at sea and protection of the marine environment
EU European Union
GIS Geographic information system
GLA or GLAs General Lighthouse Authority or Authorities
IALA International Association of Marine Aids to Navigation and Lighthouse Authorities.IALA gathers marine aids to navigation authorities, manufacturers and consultants from all parts of the world. Its aim is to harmonise aids to navigation worldwide and to ensure that the movements of vessels are safe, expeditious, cost effective and harmless to the environment.
IMO  International Maritime Organization – a United Nations agency with responsibility for the safety and security of shipping and the prevention of marine pollution by ships.
INTERREG Inter-regional co-operation between regions in the European Union
NLB  Northern Lighthouse Board
NSR  North Sea Region
RNIB Royal National Institute for the Blind
RNAV Radio-Navigation
R&RNAV The GLA Research and Radio-Navigation Directorate
TH or THLS Trinity House


Additional Terminology

AIS Automatic Identification System
A short range coastal tracking system used on ships and by vessel traffic services (VTS) for identifying and locating vessels by electronically exchanging data with other nearby ships and VTS stations.
ARPA Automatic Radar Plotting Aid
A function that creates tracks on the radar display using radar contacts. Such systems can calculate the tracked object’s course, speed and closest point of approach.
COG Course Over Ground
The GPS system’s calculation of the ship’s heading in relation to the installed chart system
DCDB Data Center for Digital Bathymetry
Operated by the National Geophysical Data Center in Boulder, Colorado, USA, DCDB is a focal point for digital hydrographic data services for IHO Member Countries.
DGPS Differential Global Positioning System
An enhancement to GPS that uses a network of fixed, ground-based reference stations to broadcast the difference between the positions indicated by the satellite system and the known fixed positions.
DNC Digital Nautical Charts
A vector-based digital product designed to give navigators an up-to-date seamless database of the world. DNCs are published by the National Geospatial-Intelligence Agency – part of the United States’ Department of Defense.
DSCC Data Supply Chain Certification
A system of handling data intended to ensure that the transmission of data from its source to the point at which it is displayed on the end-user screen does not degrade the data.
EBC Electronic Bearing Line
A feature in a radar that is used to determine the relative bearing of an object from the observing ship’s bearing.
EC Electronic Chart
A term used to describe the data, the software and hardware system capable of displaying electronic chart information.
ENC Electronic Navigational Chart
An electronic chart designed to be used in the ECDIS and issued on the authority of government-authorized hydrographic offices.
FIG International Federation of Surveyors.
An international, non-governmental organisation whose purpose is to support international collaboration for the progress of surveying in all fields and applications.
GAGAN GPS and GEO Augmented Navigation System
GEBCO General Bathymetric Chart of the Oceans
An international group of experts who work on the development of a range of bathymetric data sets and data products.
GLL Geographic position
Used to send position from the GPS, LORAN C or other satellite receiver to other devices, such as radar or ECDIS.
GLONASS GLObal Navigation Satellite System
A space-based, radio-positioning, navigation and time-transfer system operated by the Government of the Russian Federation.
GNSS Global Navigation Satellite System
A world-wide position, time and velocity radio-determination system comprising space, ground and user-segments of which GPS, GLONASS, EGNOS, COMPASS and IRNSS are components.
GPS Global Positioning System
A US-based global navigation satellite system that provides positioning, navigation and timing services to worldwide users on a continuous basis.
HDT Heading-True
Used to send heading information from the gyro-compass to other devices including radar and ECDIS.
IALA International Association of Marine Aids to Navigation and Lighthouse Authorities
A non-profit, non-governmental international technical association that gathers marine aids to navigation authorities, manufacturers and consultants from all parts of the world, and facilitates knowledge sharing.
IAPH International Association of Ports and Harbours
A global alliance of ports representing 230 ports in 90 countries. IAPH is non-profit and non-governmental. Headquartered in Tokyo, Japan.
IBS Integrated Bridge System
Ship systems that take input from sensors throughout a ship in order to display position and control information electronically for bridge officers. Navigators manage this system, choosing how to set the system, interpreting output and monitoring interactions between controls and the ship.
ICA International Cartographic Association
The world’s authoritative body for cartography, the discipline dealing with the conception, production, dissemination and study of maps.
IFHS International Federation of Hydrographic Societies
A partnership of national and regional hydrographic societies that promotes the development of hydrography and knowledge exchange in the hydrographic community.
IHO International Hydrographic Organisation
An intergovernmental organization representing over 80 national hydrographic organizations. Coordinates hydrographic activity between states.
IMSO International Mobile Satellite Organization
An intergovernmental organization that oversees certain public satellite safety and security communication services provided by the Inmarsat satellites.
IOC Intergovernmental Oceanographic Commission
A UNESCO commission that coordinates marine research, services, observation systems, hazard mitigation and capacity development in order to better manage the ocean and coastal areas.
QZSS Quasi-Zenith Satellite System
Is the Japanese regional satellite system that will enhance the GPS in Japan.
RENC Regional ENC Coordination Centre
Entities set up by the IHO, a RENC validates and distributes ENCs from producing nations to end-users. Each major geographical area of the world is meant to be represented by a RENC, but only two currently exist, in Norway (PRIMAR) and the UK (IC-ENC).
RNC Raster Nautical Chart
Raster charts that conform to IHO specifications and are produced by digitally scanning and geo-referencing the image of a paper chart.
S-52 An IHO publication developed in conjunction with the IMO’s performance standards for ECDIS that provides specifications and guidance regarding the issuing and updating of ENCs, and their display in ECDIS.
S-57 IHO Special Publication 57
Contains the IHO Transfer Standard for Digital Hydrographic Data. The major components of S-57 Edition 3.1 are: Theoretical Data Model , Data Structure, Object Catalogue, ENC product Specification, Use of the Object Catalogue for ENC.
S-63 The IHO recommended standard for the protection of ENC information.
It defines security constructs and operating procedures that must be followed to ensure that the IHO Data Protection Scheme is operated correctly.
S-100 Specification from the IHO for the new geospatial standards for hydrographic data.
It is purported to be a wider standard catering to other users apart from ECDIS and based on the ISO TC211 standards for contemporary GIS. The ENC product specifications based on S-100 and termed S-101, will in due course replace the S-57.
SBAS Satellite Based Augmentation System
SENC A database in the manufacturer’s internal ECDIS format produced as a result of transforming the ENC. The conversion from ENC contained in the ASCII form to SENC in a binary form may be carried outside the ECDIS in a lab. This is a preferable way to provide efficient and error-free electronic charts to the end-user.
SOG Speed Over Ground
The GPS system’s approximation of the ship’s speed in relation to the installed chart.
TCS Track Control System
Via a connection with the autopilot, TCS in an ECDIS controls that the ship’s GPS position follows a pre-planned track.
TTM Tracked Target Status
Used to send tracked target information from ARPA to ECDIS.
VDR Voyage Data Recorder
A data recording system designed for all ships, and required to comply with the IMO’s SOLAS Convention, in order to collect data from various sensors on board the vessel. The information is stored in an externally mounted protective storage unit.
VRM Variable Range Marker
A feature of radar used to determine relative distance to any target seen on the screen.
VTS Vessel Traffic Services
A marine traffic monitoring system established by harbour or port authorities, similar to air traffic control for aircraft. These use radar, CCTV, VHF radiotelephony and AIS to track vessels.
WEND Worldwide Electronic Navigational Chart Data Base
An IHO concept, based on the set of WEND Principles, designed specifically to ensure a world-wide consistent level of high-quality, updated official ENCs through integrated services that support chart carriage requirements of SOLAS and the requirements of IMO PS for ECDIS.

Interreg 1VB North Sea Region Programme

About the North Sea Region

The 7 North Sea Region Programme countries are Sweden, Denmark, Germany, the Netherlands, the Flemish Region of Belgium, the UK and Norway.

The region is connected by the North Sea, and the Programme area is made up of regions in the 6 member states and Norway that border the North Sea.In size, the region covers an area of 664.000 km2, and has a population of approximately 60 million.The areas in the region share many of the same problems and challenges.By working together and sharing knowledge and experiences it is hoped that a sustainable and balanced future will be secured for the whole region.


Interreg programmes aim at stimulating transnational cooperation in the EU.The programmes are divided into different strands, according to size and geographical span.There are A, B and C strands.

The North Sea Region Programme is a B strand programme.It focuses on encouraging and supporting transnational cooperation in the North Sea Region.


The Programme is financed through the European Regional Development Fund (ERDF), a Norwegian equivalent and contributions from all of the countries involved.Decisions are taken by committees made up of national and regional representatives from all seven countries and the day-to-day running of the Programme is taken care of by the international staff at the Secretariat in Denmark.The Programme finances a wide range of projects concerned with regional development.Projects must include partners from at least three different countries within the co-operation area, two of which must be from an EU member state.

The North Sea Region Programme 2007-2013 works with key policy areas in regional development through transnational projects.

A principal aim of the Programme is to expand the scope of territorial co-operation and focus on high quality projects in innovation, the environment, accessibility, and sustainable and competitive communities.

The 2007-2013 Programme connects regions from seven countries around the North Sea, incorporating policy level planning and the long lasting and tangible effects of projects.These are the foundations of the future transnational projects, which will create added value to partner regions and beyond.

Aim of the Programme

The aim of the Programme is to make the North Sea Region a better place to live work and invest in.The North Sea Region Programme has a role in enhancing the overall quality of life for its residents by ensuring that there is access to more and better jobs, by sustaining and enhancing the acknowledged environmental qualities of the region, by improving accessibility to places and ensuring that our communities are viable, vibrant and attractive places to live and work.

This endeavour translates into four Programme priorities, which are to promote transnational co-operation that:

  • Increases the overall level of innovation taking place across the North Sea Region,
  • Enhances the quality of the environment in the North Sea Region,
  • Improves the accessibility of places in the North Sea Region,
  • Delivers sustainable and competitive communities.

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