Comprehensive Methods of the Minimum Safe Under Keel Clearance Valuation to the Restricted Tidal Waters

The main purpose of this paper is familiarization with the minimum under keel reserve for sea-going ships navigating on restricted tidal waters. For the purpose of this paper, the river Humber was used as an example of high tidal range in conjunction with a variety of weather conditions that affect the tides. The author made use of research and job experience as a pilot, closely cooperating with other authorities, for example, Vessel Traffic Service (VTS) Humber, local Hydrographic Department as well as Maritime Coastguard Agency (MCA) and Maritime Accident Investigation Bureau (MAIB). Statistics of groundings and near miss situations including analysis will be presented with conclusions and proposals to sort out some of the problems. The new Dynamic Under Keel Clearance (DUKC®) software with trials assessments will be compared with current tools and software by VTS and Ships’ Traffic Centre.


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  • Accession Number: 01496776
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 1 2013 12:44PM