Talk:Digital elevation model

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= Article Draft =
 
= Article Draft =
''DEM stands for Digital Elevation Model. It can be represented as a regular grid of points or as a [[Triangular irregular network]] of points. DEMs are the basis for digitally produced relief maps.''
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::''DEM stands for Digital elevation model. It can be represented as a regular grid of points or as a [[Triangular irregular network]] of points. DEMs are the basis for digitally produced relief maps.''
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Digital elevation models are sets of data representing the estimated height of a surface
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above a certain level, i.e. a [[Geodetic datum]]. It may represent the [[Wikipedia:Elevation]] of the bare earth,
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or include objects as buildings or tree canopies.
  
 
== Possible contents and links==
 
== Possible contents and links==

Revision as of 17:28, 9 May 2013

Contents

Article Draft

DEM stands for Digital elevation model. It can be represented as a regular grid of points or as a Triangular irregular network of points. DEMs are the basis for digitally produced relief maps.

Digital elevation models are sets of data representing the estimated height of a surface above a certain level, i.e. a Geodetic datum. It may represent the Wikipedia:Elevation of the bare earth, or include objects as buildings or tree canopies.

Possible contents and links

From Liu & Mason 2010[1]: DGM's are a subgroup of Surface models and can be obtained by

  1. Photogrammetry
  2. Laser altimetry
  3. SAR inferometry

Related articles already existing in this wiki are:

References

  1. Liu, J. G. & Mason, P. Essential Image Processing and GIS for Remote Sensing. (John Wiley & Sons, 2010).

External links

Digital elevation model on Wikipedia

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