land navigation for ground team leaders

1Land Navigation for GTL.ppt Last Revised: 16 July 2002

Land Navigation for Ground Team Leaders

Developed as part of the National Emergency Services Curriculum Project

2Land Navigation for GTL.ppt Last Revised: 16 July 2002

What are your responsibilities?

• Team Leaders are responsible for knowing the ins and outs of the maps of their area

• Team members only know basic field work normally

3Land Navigation for GTL.ppt Last Revised: 16 July 2002

What are maps?

• A 2 dimensional representation of a 3 dimensional area.

• A tool

• A universal reference that teams can aid teams in coordination.

4Land Navigation for GTL.ppt Last Revised: 16 July 2002

5Land Navigation for GTL.ppt Last Revised: 16 July 2002

6Land Navigation for GTL.ppt Last Revised: 16 July 2002

7Land Navigation for GTL.ppt Last Revised: 16 July 2002

Longitude

8Land Navigation for GTL.ppt Last Revised: 16 July 2002

Latitude

9Land Navigation for GTL.ppt Last Revised: 16 July 2002

Latitude and Longitude Examples

10Land Navigation for GTL.ppt Last Revised: 16 July 2002

Gridded Maps

• Read Right, then Up

• Typically metric examples, but are often used with overlays as well

• Give location with varying numerical accuracy.

11Land Navigation for GTL.ppt Last Revised: 16 July 2002

Sample Map Grid

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Four Digit Accuracy

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Six Digit Accuracy

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The CAP Grid System

54 55

8382A B

C D

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Magnetic Variation & the Declination Diagram

• Compasses are affected by iron ore deposits throughout the earth, causing them to not point at the true north, but rather then magnetic north

• This variation is known, and maps show the corrections to be made in the form of the declination diagram

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Lines of Magnetic Variation

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Declination Diagrams

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Map Scale

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Sample Map Symbols

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The 3 Dimensional Model

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Using your Map with your Compass

• Field to Map

• Map to Field

• Triangulation

• Aiming Off

• The Polar Plot

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Field to Map

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Field to Map Continued

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Field to Map Continued

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Map to Field

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Map to Field Continued

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Triangulation

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Triangulation Continued

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Triangulation Continued

30Land Navigation for GTL.ppt Last Revised: 16 July 2002

Triangulation Continued

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Aiming Off

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Polar Plot

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Land Navigation Tasks for Ground Team Leaders

• O-0204 Locate A Point On A Map Using Latitude And Longitude

• O-0205 Locate A Point On A Map Using The CAP Grid System

• O-0206 Locate A Point On A Map Using A Grid Coordinate Overlay

• O-0207 Locate A Point On A Map Using A Polar Plot From A Terrain Feature

34Land Navigation for GTL.ppt Last Revised: 16 July 2002

Land Navigation Tasks for Ground Team Leaders

• O-0208 Identify The Major Terrain Features On A Map

• O-0209 Identify Topographic Symbols On A Map

• O-0210 Determine Elevation On Map• O-0211 Measure Distance On A Map• O-0212 Convert Between Map And

Compass Azimuths

35Land Navigation for GTL.ppt Last Revised: 16 July 2002

Land Navigation Tasks for Ground Team Leaders

• O-0213 Determine And Plot An Azimuth On A Map

• O-0214 Determine Azimuths On A Map Using Two Points

• O-0215 Orient A Map To The Ground Using Terrain Association

• O-0216 Orient A Map To North Using A Compass

36Land Navigation for GTL.ppt Last Revised: 16 July 2002

Land Navigation Tasks for Ground Team Leaders

• O-0217 Locate Own Position On A Map Using Terrain Association

• O-0218 Move To A Point Using Linear Offset

• O-0219 Move From Point To Point In A Vehicle Using A Map