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Federal Office of Topography swisstopo

DOM

DOM as hillshade

DOM represents the earth's surface including all stable and visible landscape elements such as soil, natural cover, woods and all sorts of constructive works.


Accuracy:

  • In open terrain: ±0.5 m 1σ
  • In terrain with vegetation: ±1.5 m 1σ

 

Types of Models

The DOM isdelivered in two types:

The type "raw" is a cloud of vector points (x,y,z) with a density of about 1 point per 2 m2. It's the basis model and can serve for highly specialised terrain investigation.

formates of delivery: 

  • ASCII X,Y,Z single space

The type "GRID 2 m" has been interpolated from the raw model and is a 2 m grid. In the areas above 2000 m this grid is being suplemented by DHM25 Level 2. Due to easier handling this type can be directly used in geographic information systems and for orthorectification of aerial phtos or satellite images.

Formats of delivery:

  • ASCII X,Y,Z single space
  • ESRI ASCII Grid


Orders

swisstopo offers the product DOM for the cantons ZG, NW, BS, ZH and SG. Price on request.

For the data of the other cantons as well as for the product DTM-AV please contact the portal for cadastral surveying External website. Content opens in new window.

 

Comments about this page: Topography
Last updated: 31.05.2011

Documentation

Almost every publication concerning DOM is available only in German and French. Please select your preferred language in the navigation bar, to view the desired document.

 

 

Meta data
all meta information available in geocat:
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