Electronic Navigational Chart
Definition (ENC: Electronic Navigational Chart)
An electronic navigational chart is a digital chart. In accordance with the IHO Transfer Standard for Digital Hydrographic Data (S-57), this chart covers all information on paper charts related to marine navigation, such as coastlines, isobaths, water depths, beacons (lighthouses and light buoys), hazards, and sea routes, in order to apply the aforementioned data to the Electronic Chart Display and Information System (ECDIS).
* ECDIS (Electronic Chart Display & Information System)
This system is intended to display electronic navigational charts. ECDIS is a system exclusively produced in accordance with the Specifications for Chart Content and Display Aspects of ECDIS (S-53) prepared by IMO and IHO.
- Electronic Chart Display and Information System mimetic diagram
- Electronic navigational chart
- Electronic Chart Display and Information System (ECDIS)
- Hazard warning
- Route planning
- Tracking records
- Waterway monitoring
- Navigation information
- Warn a dangerous situation about stranding and collision to mariners in advance.
- Select the optimal routes through route design and planning.
- Identify the causes of accidents through automatic tracking records.
- Provide mariners with information on marine navigation included.
Background on Development
Increased international cargo traffic and the development of nautical skill in the late 20th century have promoted the enlargement and speedup of a ship, leading to frequent large-scale marine accidents. Against this backdrop, centered on the shipping countries in Northern Europe, research into the electronic navigational chart began as one among several novel ways to improve the safety navigation in the mid 1980s.
The marine accident involving the oil tanker Sea Prince occurred in the vicinity of Sorido Island on the southern coast of Korea in 1995. This accident gave rise to the necessity to build a new navigation safety system, and the development of the electronic navigational charts began in earnest as a result of that decision.
Electronic Chart Display and Information System mimetic diagram
The marine accident of the oil tanker Sea Prince occurred near Sorido Island on the southern coast of Korea in July 1995 resulted in a great amount of property damage and the pollution of the marine environment, including 1.8 billion KRW of damage to fishermen and 1.8 billion KRW in response and recovery expenses.
The International Hydrographic Organization (IHO) committee founded in 1989 conducted a technical review and trial operation, and established the international standard for the purpose of the practical use of the electronic navigational charts. Combining those efforts with research results from each country, it finally completed and announced S-57 in 1996, which in turn revitalized the development of the electronic navigational charts in each country.
Beginning to develop the development of the electronic navigational chart in 1995, the Korea Hydrographic and Oceanographic Administration finally completed the charts in 1999 depicting the whole coasts in Korea. Since July 2000, it has distributed the charts and annually produced a new and revised edition so as to retain the up-to-date navigation safety information. Now a total of 535 cells are being maintained.
|1995∼1996||Established the standard for the production of ENCs and conducted trial production||Completed|
|1996∼1997||Developed 60 ENC cells||Completed|
|1997∼1998||Developed 105 ENC cells||Completed|
|1998∼1999||Developed 40 ENC cells, and ENC supply and management systems||Completed|
|1999∼2000||Developed the technology linked to the marine information systems||Completed|
|2006~2008||Developed grid-type ENCs||Completed|
|Present||Update and manage ENCs||Ongoing|
Electronic Navigational Chart Composition (divided for navigational purposes)
|Code No.||Type of Chart||Scale|
|1||Overview Chart||≤ 1,500,000|
|2||General Chart||350,000 ∼ 1,499,999|
|3||Coastal Chart||90,000 ∼ 349,999|
|4||Approach Chart||30,000 ∼ 89,999|
|5||Harbor Chart||7,500 ~ 29,999|
|6||Berthing Chart||< 7,500|
*Numbering Electronic Navigational Charts
◊ KR X XXXXX. 000
- KR : ENC producer code (Korea: KR)
- X : Code numbers for navigational purposes of ENCs
- XXXXX : Each country’s designated cell code
- 000 : ENC update numbers (first edition: 000, No.1 edition: 001)
ENC Production Procedure
- Prevent marine accidents
- Lead to localizing ECDIS production technology and create import substitution effects
- Revitalize industrialization of diverse markets in demand