Map Scale Detail Comparison Graphic Ver. 1 - West Point Scale Detail Comparison Graphic Ver. 1...
Transcript of Map Scale Detail Comparison Graphic Ver. 1 - West Point Scale Detail Comparison Graphic Ver. 1...
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Map Scale Detail Comparison Graphic Ver. 1
Datum: WGS84 (~NAD1983)Projection: UTM Zone 18
Grid Zone Designation: 18T100,000 meter square identifier: WL
Primary Grids (Black): 1000 metersSecondary Grids (Grey): 100 meters
5 m ContoursMap produced by:Geospatial Information Science ProgramDept of Geogrpahy & Env. Eng.United States Military AcademyPOC: COL Michael Hendricks
Map Data Derived from Orienteering MapMap Data Current as of 2010Map Designed & Printed 2011
1:10,000 Scale Map Legend
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1:10,000High Density Topographic Map
1:25,000Topographic Map
1:50,000Topographic Map
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8610 m Contours
Date: 1991
10 m ContoursDate: 2011
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×
TRUE
NOR
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GRID CONVERGENCE0º 39' (11 MILS)
FOR CENTER OF SHEET
GRID
NOR
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2005G-M ANGLE
-14º (-248 MILS)2.4º Arcmin/yr (42 MILS)
MAGNETIC NORTH
TO CONVERT AMAGNETIC AZIMUTHTO A GRID AZIMUTH
SUBTRACT G-M ANGLE
TO CONVERT AGRID AZIMUTH TO AMAGNETIC AZIMUTH
ADD G-M ANGLE
Declination Diagram
Smaller Scale(less detail)
Larger Scale(more detail)
Scale or Representative Scale (RF): The relationship of distance on the map to distance on the ground.Example 1: 1:25,000 means 1 mm on the map equals 25,000 mm (or 25m) on the ground.Example 2: 1 cm measured on a 1:50,000 map is 50,000 cm on the ground (or 500 m)
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" "09 Jun 2011