Information Flow between UKHO and Mariners and Master Obligations Flashcards
What is a Hydrographic Note?
Mariners are requested to notify the UKHO when;
- Discover, new or suspected dangers to navigation
- Changes, in aids to navigation
- Corrections, to publications.
This is done by means of a hydrographic note.
What are the types of Hydrographic Notes
H.102 (general/publications)
H.102A (harbours)
H.102B (anomalies in British Admiralty Charts)
What type of Information can you include in H.102A?
- General Remarks
- Anchorages
- Pilotage
- Directions
- Tugs
- Wharves
- Cargo Handling
- Repairs
- Rescue and Distress
- Supplies
- Services
- Communications
- Port Authority
- Views
What is SOLAS Chapter V Reg 34?
SOLAS CH V Reg 34: Safe Navigation and Avoidance of Dangerous Situations
- Passage must be planned in accordance with the IMO guidelines A.893 (21)
- Master is obliged to check the passage plan and take voyage planning decisions for safety or environmental reasons
- Charterer, Company, Owner shall not prevent or restrict the master of the ship from taking or executing any decision which, in the master’s professional judgement, is necessary for safe navigation and protection of the marine environment.
What type of dangers messages must the Master send as per SOLAS Ch V Reg 31?
- Dangerous Ice
- Dangerous derelict
- Other direct danger to Navigation
- TRS
- Sub-freezing air temps with gale force winds causing severe ice accretion
- Winds above Force 10 with no previous storm warning received
What Information should be included in a danger message?
What additional information should you include of Ice accretion and Storms > force 10 not reported?
- Type, of danger
- Position, of observation
- Time, of observation
- Additional, ice accretion;
- Air temp
- Sea temp
- Wind force and direction
- Additional, Storms > force 10 not reported;
- Pressure/ pressure trend
- Wind direction/force
- Vessel course and speed
Who should the Master address the danger message too?
- Ships in the vicinity and competent authorities
What are the four categories of Maritime Safety Information?
- Nav Warnings
- Met Warnings / forecasts
- Other urgent safety related information
- SAR information
What is the Master’s obligation regarding the World Wide Navigation Warning Service (WWNWS) transmissions?
- All transmissions relating to navigation warnings or matters concerning life at sea are brought to the Masters notice or the of the OOW at the time, IMMEDIATELY ON RECEIPT.
- Monitoring of nav warnings prior to sailing and whilst on passage. All warnings logged and bought to the attention of the OOW.
What is the WWNWS?
- Established by the IHO and IMO.
- Global service for broadcasting navigational warnings.
- To give the mariner early information on incidents that may be a danger to navigation.
What are the 4 types of warnings?
- NAVAREA
- Sub-area
- Coastal
- Local
What are the Main Features of NAVAREA Warnings?
Information vessels in main shipping lanes.
- New nav hazards
- Failures of important nav aids
- Information which may require changes to planned nav routes
What are the Main Features of Sub-area Warnings?
Broadcast same nav warnings as a NAVAREA but only those relevant to the sub area.
What are the Main Features of Coastal Warnings?
- Broadcast information to coastal areas between land and fairway buoy.
- Areas can be serviced by a NAVTEX coastal station.
- For areas without NAVTEX service then warnings are included in SAFETYNET service up to 250 NM from shore.
What are the Main Features of Local Warnings?
- Broadcast information that cover inshore waters often within the limits of a harbour or port authority.
- Broadcast on other means e.g. VHF and supplement coastal warnings giving detailed information within inshore waters.
