Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the...
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Transcript of Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the...
![Page 1: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/1.jpg)
Unit 1: Navigation
![Page 2: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/2.jpg)
What is Navigation?
• Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another
• It involves:– Gathering information from sources– Evaluating the information– Making decisions based on the
information
![Page 3: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/3.jpg)
• Navigation techniques vary with the type of vessel, conditions and the navigators experience
• Navigation is both a science and an art that takes knowledge, skill and practice
![Page 4: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/4.jpg)
Types of Navigation
There are 6 main types of navigation:1. Dead Reckoning2. Piloting3. Celestial Navigation4. Radio Navigation5. Radar Navigation6. Satellite Navigation
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1. Dead Reckoning (DR)
• the process of estimating your position by advancing a known position using course, speed, time and distance to be traveled.
In other words figuring out where you will be at a certain time if you hold the speed, time and course you plan to travel.
![Page 6: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/6.jpg)
2. Piloting
• Piloting involves navigating in restricted waters with frequent determination of position relative to geographic and hydrographic features.– This method is used when in sight of
land
![Page 7: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/7.jpg)
3. Celestial Navigation
• uses "sights," or angular measurements taken between a celestial body (the sun, the moon, a planet or a star) and the visible horizon to locate one's position on the globe, on land as well as at sea.
![Page 8: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/8.jpg)
4. Radio Navigation
• uses radio frequencies to determine position on Earth.
• The basic principles are measurements from/to electric beacons, especially:– Directions– Distances– Velocity (partly)
![Page 9: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/9.jpg)
5. Radar Navigation
• Uses a radar to determine the distance from or, bearing of, objects whose position is known.
![Page 10: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/10.jpg)
6. Satellite Navigation
• Uses artificial earth satellite systems, such as GPS, to determine position.
![Page 11: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/11.jpg)
MAPS & CHARTS
![Page 12: Unit 1: Navigation. What is Navigation? Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another.](https://reader034.fdocuments.in/reader034/viewer/2022051517/5697bf781a28abf838c819e6/html5/thumbnails/12.jpg)
Map
• A map is a visual representation of an area
• It represents selected features of the Earth's surface, drawn to scale.
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Maps Include
• The graphic representations on maps may consist of:– Lines and symbols of various colors– Drawings of landforms– Photographs with the additions of
lines and colors to emphasize features
• Maps show land areas, political subdivisions, and topography.
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Scale
• Many, but not all, maps are drawn to a scale, expressed as a ratio such as 1:10,000
• This means that 1 of any unit of measurement on the map corresponds to 10,000 of that same unit on the ground.
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Political vs Physical Maps
• Most maps of the world or large areas are either political or physical
• Political maps show territorial borders
• Physical maps show features of geography such as mountains, soil type or land use
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Political Map of Canada
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Physical Map of Canada
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Charts
• A chart is a special-purpose map, generally designed for a form of navigation, such as sea navigation.
• A nautical chart is a graphic representation of a sea area and adjacent coastal regions.
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• Depending on the scale of the chart, it may show:– Depths of the water– Heights of land– Natural features of the seabed– Details of coastline– Navigational hazards– Locations of natural and man-made
navigational aids