When using a Lambert conformal chart in high...

Question 1 / 2707066636ee928f7522a1c51a544

Question 1 of 2707066636ee928f7522a1c51a544

When using a Lambert conformal chart in high latitudes, which reference is used to measure angles such as bearings or courses?

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Question 1 of 27070

When using a Lambert conformal chart in high latitudes, which reference is used to measure angles such as bearings or courses?

🔍 Key Concepts

• Lambert conformal conic projection properties (how meridians and parallels are shown) • Definition of a bearing (where is the angle actually formed and measured?) • Effect of meridian convergence at high latitudes on how you reference directions

💭 Think About

• On a Lambert conformal chart, ask yourself: where is the point at which the bearing angle actually exists – at the ship, at the object, or somewhere in between? • Think about what a bearing physically is: the angle between the line of sight and which ‘north’ at which location? • In high latitudes, meridians converge. Which meridian best represents the correct directional reference for the navigator taking the bearing?

✅ Before You Answer

• Recall that a bearing is defined at the observer’s position – verify where the observer is in this problem. • On a Lambert chart, meridians are straight but converging lines; confirm which meridian is relevant for the angular reference. • Eliminate any option that suggests an angle is measured at a point other than where the bearing is actually taken.

Question 1 of 27070

When using a Lambert conformal chart in high latitudes, which reference is used to measure angles such as bearings or courses?

the meridian midway between the ship and the object

the meridian through the ship's position

the meridian through the object of the bearing

any meridian

Question 1 / 2707066636ee928f7522a1c51a544

Question 1 of 2707066636ee928f7522a1c51a544

When using a Lambert conformal chart in high latitudes, which reference is used to measure angles such as bearings or courses?

Back

Question 1 of 27070

When using a Lambert conformal chart in high latitudes, which reference is used to measure angles such as bearings or courses?