UOC Clause 5.4.1 Geo object depth areas Ģ4. ENC PS Clause 5.4.1 Content of the exchange set Ģ3. External text files in national language Ģ2. ENC PS Clause 5.6 File naming: Use of _ (underscore) Ģ1. UOC Clause 12.4.1 Buoys: Emergency Wreck Marking Buoy Ģ0. ENC PS Clause 2.2 Cells: 180º Meridian of Longitude ġ9. Automatic Identification System (AIS) in ENC ġ8. UOC Clause 11.2 Maritime jurisdiction areas: Disputed claims ġ7.
UOC Clause 11.2 Maritime jurisdiction areas ġ6. UOC Clause 4.8.14 Built-up areas (BUAARE) SUPERSEDEDġ4. UOC Clauses 4.6.7.3 Pontoons (PONTON) ġ2. UOC Clauses 4.6.6.2 Floating Docks (FLODOC) ġ1. UOC Clause 12.8.6.5 Directional lights (LIGHTS) ġ0.
UOC Clause 11.9.1 - Fishing facilities (FSHFAC)Ĩ. UOC Clause 6.2.2 – Obstructions and foul areas SUPERSEDEDĥ. UOC clause 10.1.1 Navigational lines and recommended tracks 10.2.2 Deep Water Route Centrelines and 10.2.4 Recommended Routes ġ.a UOC Clause 10.1.1 Navigational lines (NAVLNE) and recommended tracks (RECTRC) SUPERSEDEDġ.b UOC Clause 10.2.2.2 Deep Water Route Centerlines (DWRTCL) SUPERSEDEDġ.c UOC Clause 10.2.4 Recommended Route Centerline (RCRTCL) SUPERSEDEDģ. New bulletins must be approved by the ENCWG.ĮNC Product Specification (ENC PS), including Use of the Object Catalogue (UOC)ġ. These Bulletins have resulted from proposals brought to the attention of the ENC Maintenance Working Group (ENCWG). Future new or revised ENC encoding guidance will be added as new Encoding Bulletins, which will subsequently be incorporated in future New Editions of the UOC as required.
Encoding Bulletins that have been transferred into the UOC will maintain their reference in the Encoding Bulletins list, and the guidance included in each Bulletin will be replaced with the appropriate UOC clause references. This was done in order to transfer new and revised ENC encoding guidance incorporated in these Encoding Bulletins, and in other IHO publications, into the authoritative IHO ENC encoding guidance document. In 2010, the IHO approved the “unfreezing” of S-57 Appendix B.1, Annex A – Use of the Object Catalogue for ENC (UOC). It should be noted that the procedures described in these Bulletins are not compulsory however it is strongly recommended that data producers follow them wherever possible to ensure the consistency of ENC production worldwide. Each Bulletin explains a particular ENC/ECDIS issue recommended procedures for addressing the issue and the consequences of not following the recommended procedures. S-57 Edition 3.1 has been frozen, and order to promulgate IHO approved changes the concept of "Encoding Bulletins" was developed to communicate how data producers may modify their encoding practices to address those issues that affect the use of ENC data in ECDIS. It is anticipated however that S-57 Edition 3.1 will continue to be used to produce ENCs for the foreseeable future.
However there is a need for S-57 to support additional requirements, which has prompted the IHO to develop the S-100 (IHO Universal Hydrographic Data Model) which will eventually supersede S-57. It has been used almost exclusively for encoding Electronic Navigational Charts (ENCs). S-57 Edition 3.1 Encoding Bulletins: S-57 is the IHO standard for the exchange of digital hydrographic data.
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