Sea Technology

MAR 2017

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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24 st / March 2017 manufacturers and others involved in the process. An authoritative source needs to be identied to "own" this unique ID catalog. AIS Needs. A discrepancy ASM needs to be developed in order to have the capability to transmit messages regarding discrepancies. Presently, a draft ASM has been developed for reporting discrepant AtoN; it may be adapted for other IENC objects. Shore-based AIS coverage needs to be expanded, the communication net- work further developed, and a means with which to ensure that the report is delivered to the responsible entity (e.g., USCG, USACE, NOAA) must be established. ECS-AIS Integration. Although most ECS have integrated AIS functionality, the integration of the discrepancy ASM will need to be closely coordinated with ECS manufacturers to ensure that full capability is utilized and the ASM is created and transmitted accordingly. The ECS user interface for discrep- ancy reporting will require develop- ment in close coordination with work- ing pilots to ensure its use is simple and does not negatively affect vessel navigation. Modications to the ECS will also need to be coordinated with appropriate standards bodies to ensure new discrepancy reporting capabilities do not affect compliance with appro- priate standards. Policy, Procedural, Legal Issues. Many legal and procedural issues re- lated to reporting discrepancies via this manner will need to be addressed. There are existing legal, legislative and regulatory requirements on hydro- graphic ofces and AtoN authorities regarding collection and dissemina- tion of chart discrepancies. There are also potential liability issues associated with provision of charting and AtoN services. This proposed methodology will need to be evaluated with those requirements in mind. If, for instance, a discrepancy is reported, there may need to be well-documented proce- dures to ensure that the discrepancy is received, and that appropriate action is taken, by the responsible entity to resolve the discrepancy. Additionally, if an issue is reported by a vessel that may affect the voyage of another ves- sel, it may be necessary to ensure that those messages can also be received and used by other vessels transiting that area. $PODMVTJPO Although presently only a concept, the potential use of AIS as a means for vessels to report electronic navi- gation chart discrepancies using the automatic identication system could increase the reporting of discrepancies and provide them in a more timely and accurate manner than currently ex- ists. If successful, it could make IENCs more accurate and improve navigation safety through the rapid dissemination of navigation safety-related informa- tion. The concept has yet to be tested in the real world, and initial planning has identied numerous technical and policy issues that will need to be ad- dressed. It is believed than none of these are insurmountable, and up- coming proof-of-concept testing in the United States as part of an ongoing se- ries of tests of AIS transmit capability on the Ohio River will help to clarify what work needs to be done on these technical and policy issues. References For a list of references, contact Bri- an Tetreault at brian.j.tetreault@usace. ST Denise LaDue is the production manager for the U.S. Army Corps of Engineers Inland Electronic Navigational Chart (IENC) program. She is a U.S. representative to international bodies involved with electronic navigational charting and serves as the co-chair of the Inland ENC Harmonization Group (IEHG), a nongovernmental international organiza- tion responsible for the development of inland elec- tronic navigational charting standards worldwide. Brian Tetreault develops coastal and inland naviga- tion systems for the U.S. Army Corps of Engineers Research and Development Center. He is a U.S. representative to various international bodies de- veloping e-navigation standards and guidelines. A graduate of the United States Coast Guard Acad- emy, he served for 22 years at sea and ashore and holds a commercial mariner's license. "Upcoming proof-of-concept testing...will help to clarify what work needs to be done on these technical and policy issues." UNDERWATER LISTENING SYSTEMS Versatile Acoustic Recorders Real-Time Listening Remote Buoys New Noise Processing Features 25 rue Michel Marion 56850 Caudan - France +33 (0)297 898 580 - International Standard and Guideline Compliant (ANSI, MSFD...)

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