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Geosource>Ajhil at 11:50, 22 February 2016

2016-02-22T11:50:34Z

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__NOTOC__
{{OR/14/044}}
<center>
{|
|- style="vertical-align:top;"
| ! scope="col" style="width: 80px;" | ''DTM''
| Digital Terrain Model — Model of surface of the solid Earth (generally the boundary between geosphere and atmosphere or hydrosphere). This is traditionally derived from OS contours and spot heights and should therefore exclude all buildings, trees, hedges, crops, animals etc. Sometimes also referred to as ‘bald earth’ models
|-
| ''Envelope''
| Defined here as the extent of a geological deposit in plan view (2D): forming a distribution map of the particular unit, a presence — absence map
|-
| ''GSI3D''
| Geological Surveying and Investigation in 3D geological modelling software
|}
</center>
[[Category:OR/14/044 Model metadata report for the Leeds-Aire Valley 3D geological model| 14]]

OR/14/044 Glossary - Revision history

Dbk: 1 revision imported

Geosource>Ajhil at 11:50, 22 February 2016