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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
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Latitude
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Latitude and Longitude Examples
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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
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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
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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
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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