What are the landforms on military maps mainly represented by? () A. Scale B. Geographic coordinate network C. Plane rectangular coordinates

The landforms on military maps are mainly represented by contour lines.

military map

Military maps are maps made for military purposes. Including topographic maps, military charts, aviation maps, aerospace maps and other military thematic maps (such as military geographical maps, coastal maps, military water network distribution maps, water quality and water source maps, etc.). ) Military maps are one of the important tools in modern warfare.

For the study of strategy and campaign, organize and command the coordinated operations of various services and arms, the planning, design and construction of various national defense projects, various military training and exercises, and various tactical operations (such as studying the terrain of the enemy and ourselves in the war zone, selecting positions, observation posts, shelters and approaches). Design and construction of fortifications, determination of weapons layout, implementation of sea and air operations, etc.

Knowledge expansion:

Military maps are mostly made of measured data, aerial photogrammetry or measured data, which has high accuracy and accords with the present situation. Large-scale topographic map larger than 1:65438+ million.

Because the map contains more detailed content, it is the main map for the army to judge the terrain and organize and command the battle, so it is also called tactical map; Small and medium-sized topographic maps (1:2510001:110,000) have a general content and a large display area, which can be used by military command organs. So it is also called campaign and strategic map.

Map scale refers to the ratio of the length of a line segment on the map to the corresponding horizontal distance in the field. Namely: map scale = map length/corresponding horizontal distance of the site. For example, if the scale of a map is 1:50000, then the distance between two points on the map is 1 cm, and the distance between two points in the field should be 500 meters.

According to the different uses and requirements of the map, the map scale is also different. Usually according to the size of the proportion. The size of the ratio can be determined by the denominator of the scale. The denominator is small, the proportion is large, and the scale is large.

Denominator is large, proportion is small, and scale is small. The larger the scale, the smaller the field area, but the more detailed the terrain, the higher the accuracy. So large-scale maps are more suitable for junior commanders, while small-scale maps are suitable for middle and senior commanders.