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Questions and Answers
Routeing charts are published for all oceans mentioned in the text.
False
Each routeing chart has twelve versions, one for each week of the year.
False
Routeing charts provide data on wind speed, direction, and force only for major ports.
False
The recognized shipping routes on routeing charts include distances between major ports.
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Data on ocean currents is not included in the information provided by routeing charts.
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Routeing charts provide information on the incidence of low visibility and frequency of storms in different regions.
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Routeing charts provide information on wind force and direction for each day of the month.
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Sea currents information is not available on routeing charts.
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Routeing charts do not include data on the state of visibility.
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The admiralty publishes a total of 120 routeing charts for the given areas.
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Routeing charts help in predicting the ETA to the next port by providing information on mean temperature at sea level.
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Routeing charts are typically updated every few months by the admiralty chart services.
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Routeing charts include information on ocean currents, ice limits, and wind roses.
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Routeing charts provide details on expected meteorological conditions for each day of the year.
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Icebergs in relevant areas and load line zones for various oceans are two types of information obtained from Routeing charts.
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Routeing charts do not contain shipping routes between major ports.
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Different loadline zones for various oceans are applicable throughout the year and remain constant.
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Study Notes
Routeing Charts
- Provide information on wind force and direction at various points on the chart.
- Show sea currents at various points on the chart.
- Indicate areas of low visibility.
- Display mean dew point temperature and mean atmospheric pressure at sea level.
- Available for each month throughout the year, with 12 charts for each area.
Areas Covered
- North Atlantic Ocean: 12 charts (1 for each month)
- South Atlantic Ocean: 12 charts (1 for each month)
- Indian Ocean: 12 charts (1 for each month)
- North Pacific Ocean: 12 charts (1 for each month)
- South Pacific Ocean: 12 charts (1 for each month)
- Malacca Strait to Marshall Islands: 12 charts (1 for each month)
- Caribbean Sea: 12 charts (1 for each month)
- Mediterranean Sea & Black Sea: 12 charts (1 for each month)
- Arabian Sea & Red Sea: 12 charts (1 for each month)
- Bay of Bengal: 12 charts (1 for each month)
- South China Sea: 12 charts (1 for each month)
- East China Sea: 12 charts (1 for each month)
Purpose of Routeing Charts
- Assist navigators in planning an ocean passage for any time of year.
- Provide essential information for safe and efficient navigation.
Information Provided
- Outline of surrounding land areas and major ports.
- Recognized shipping routes between major ports, with distances.
- Data on wind speed, direction, and force.
- Data on ocean currents.
- Limits of loadline zones and locations of ocean weather.
- Incidence of low visibility and frequency of storms.
- Data on sea and air temperature, air pressure, and ice limit.
Updating Routeing Charts
- Generally updated via a new version of the chart every few years by the Admiralty chart services.
- Rarely, a small update comes with the Admiralty Notice to Mariners and has to be done manually.
Information from Routeing Charts
- Essential for passage planning for ocean voyages.
- Include routes and distances between major ports, ocean currents, ice limits, load lines, and wind roses.
- Contain expected meteorological and oceanographic conditions for each month of the year.
- Provide information on:
- Ice limits and icebergs in relevant areas.
- Load line zones for various oceans along with applicable dates, if any.
- Shipping routes between major ports, along with distances written on the routes.
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Description
Test your knowledge on ship routeing system objectives, including the importance of ship routeing information for safe and efficient navigation. The quiz includes multiple choice, true or false, and essay questions. Watch a video presentation to better understand the use of ship routeing information.
