map reading Flashcards
- A graphic representation of a portion of the earth’s surface drawn to scale, as seen from above.
- It uses colors, symbols, and labels to represent features found on the ground.
MAP
the ratio or fraction between the distance on a map and the corresponding distance on the surface of the earth
SCALE
Map categorized according to its purpose or the manner it was made. Maps produced by other government agencies or civilian entities
TYPE
used for general planning and for strategic studies
SMALL SCALE - 1:1,000,000 & SMALLER
Presents only the horizontal positions for the features represented.
PLANIMETRIC MAP
used for operational planning
standard is 1:250,000.
MEDIUM SCALE – 1:75,000-1:1,000,000
used for tactical, administrative, and logistical planning
standard is 1:50,000
LARGE SCALE - 1:75,000 & LARGER
Maps based on the format of standard 1:250,000 medium-scale military topographic maps that contain additional information needed in joint air-ground operations
JOINT OPERATIONS GRAPHICS
A reproduction of an aerial photograph upon which grid lines, marginal data, place names, route numbers, important elevations, boundaries, and approximate scale and direction have been added.
PHOTOMAP
- Portrays terrain features in a measurable way (usually through use of contour lines)
-Shows both horizontal and vertical positions of the features represented. topographic maps
TOPOGRAPHIC MAP
- A scale model of the terrain showing features, and in large-scale models showing industrial and cultural shapes.
- It provides a means for visualizing the terrain for planning or indoctrination purposes and for briefing operations.
TERRAIN MODEL
An assembly of aerial photographs
PHOTOMOSAIC
A topographic map (usually at 1:12,550 scale, sometimes up to 1:5,000), showing the details of a city
MILITARY CITY MAP
Maps for special purposes, such as trafficability, communications, and assault maps
SPECIAL MAPS
ARE INFORMATIONS AND INSTRUCTIONS WRITTEN ON THE OUTER EDGE OF THE MAP
MARGINAL INFORMATION
used as a reference number for the map sheet
SHEET NUMBER
TITLE OF THE MAP AND IS NAMED AFTER THE LARGEST GEOGRAPHICAL AREA PRESENTED
SHEET NAME
Usually includes a group of similar maps at the same scale and on the same sheet lines or format designed to cover a particular geographic area
the name given to the series is generally that of a major political subdivision.
SERIES NAME
A representative fraction that gives the ratio of a map distance to the corresponding distance on the earth’s surface.
MAP SCALE
It is a sequence reference expressed either as a four-digit numeral (1501) or as a letter, followed by a three- or four-digit numeral (S711, S701, etc). In the regional grouping of allied mapping projects, our map series was designated “S”.
SERIES NUMBER
numbered consecutively; the highest numbered sheet is the most recent.
EDITION NUMBER
Is a miniature of the map that shows the boundaries that occur within the map area, such as provincial and city boundaries
INDEX TO BOUNDARIES
The diagram usually contains nine rectangles that represents the adjoining sheets surrounding your map. All represented sheets are identified by their sheet numbers
ADJOINING SHEETS DIAGRAM
Indicates the angular relationships of true north, grid north & magnetic north
DECLINATION DIAGRAM
