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definitions - terrain

terrain (n.)

1.a piece of ground having specific characteristics or military potential"they decided to attack across the rocky terrain"

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definition of Wikipedia

synonyms - terrain

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phrases

-283rd Engineer Detachment (Terrain Analysis) • All Terrain Board • All Terrain Mobility Platform • All-terrain tyre • All-terrain vehicle • Antenna height above average terrain • Biological terrain assessment • Bronco All Terrain Tracked Carrier • Cantaloupe terrain • Chaos terrain • Contested ideological terrain • Controlled flight into terrain • Defence Terrain Research Laboratory • Draw (terrain) • Dynamic Terrain • Fatal Terrain • Fretted terrain • GMC Terrain • Glaciated terrain • Height above average terrain • Hostile All Terrain Encounter (H.A.T.E.) • Human Terrain System • Human Terrain Team • ITU Terrain Model • List of areas of chaos terrain on Mars • Mixed Terrain Cycle-Touring • Mud-terrain tyre • Multi-Terrain Pattern • Pinzgauer High Mobility All-Terrain Vehicle • Static Terrain • Terrain (disambiguation) • Terrain (journal) • Terrain Boss • Terrain awareness and warning system • Terrain awareness warning system • Terrain feature • Terrain hugging • Terrain mask • Terrain park • Terrain rendering • Terrain shielding • Terrain to Roam • Terrain-following radar • Urban Terrain • Utility terrain vehicle • Whole Terrain

analogical dictionary


Wikipedia

Terrain

                   
  Relief map of Sierra Nevada
  A shaded and colored image (i.e. terrain is enhanced) of varied terrain from the Shuttle Radar Topography Mission. This shows elevation model of New Zealand's Alpine Fault running about 500 km (300 mi) long. The escarpment is flanked by a vast chain of hills between the fault and the mountains of New Zealand's Southern Alps. Northeast is towards the top.

Terrain, or land relief, is the vertical and horizontal dimension of land surface. When relief is described underwater, the term bathymetry is used. In America, topography has recently become an additional synonym, though in many parts of the world it retains its original more general meaning of description of place.

Terrain is used as a general term in physical geography, referring to the lay of the land. This is usually expressed in terms of the elevation, slope, and orientation of terrain features. Terrain affects surface water flow and distribution. Over a large area, it can affect weather and climate patterns.

Contents

  Importance

The understanding of terrain is critical for many reasons:

  • The terrain of a region largely determines its suitability for human settlement: flatter, alluvial plains tend to have better farming soils than steeper, rockier uplands.
  • In terms of environmental quality, agriculture, and hydrology, understanding the terrain of an area enables the understanding of watershed boundaries, drainage characteristics, water movement, and impacts on water quality. Complex arrays of relief data are used as input parameters for hydrology transport models (such as the SWMM or DSSAM Models) to allow prediction of river water quality.
  • Understanding terrain also supports on soil conservation, especially in agriculture. Contour plowing is an established practice enabling sustainable agriculture on sloping land; it is the practice of plowing along lines of equal elevation instead of up and down a slope.
  • Terrain is militarily critical because it determines the ability of armed forces to take and hold areas, and move troops and material into and through areas. An understanding of terrain is basic to both defensive and offensive strategy.
  • Terrain is important in determining weather patterns. Two areas geographically close to each other may differ radically in precipitation levels or timing because of elevation differences or a "rain shadow" effect.
  • Precise knowledge of terrain is vital in aviation, especially for low-flying routes and maneuvers (see terrain collision avoidance) and airport altitudes. Terrain will also affect range and performance of radars and terrestrial radio navigation systems. Furthermore, a hilly or mountainous terrain may strongly impact the implementation of a new aerodrome and the orientation of its runways.

  Geomorphology

Geomorphology is in large part the study of the formation of terrain or topography. Terrain is formed by intersecting processes:

Tectonic processes such as orogenies cause land to be elevated, and erosional or weathering processes cause land to be worn away to lower elevations.

Land surface parameters are quantitative measures of various morphometric properties of a surface. The most common examples are used to derive slope or aspect of a terrain or curvatures at each location. These measures can also be used to derive hydrological parameters that reflect flow/erosion processes. Climatic parameters are based on the modelling of solar radiation or air flow.

Land surface objects, or landforms, are definite physical objects (lines, points, areas) that differ from the surrounding objects. The most typical examples arelines of watersheds, stream patterns, ridges, break-lines, pools or borders of specific landforms.

  See also

  External links

The Wiktionary entry for terrain

   
               

 

All translations of terrain


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