Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Terrains - the musical! Enjoy!
Transcript of Terrains - the musical! Enjoy!
A selection of terrian parameters from a digital elevation model - the classic "terrain"
"heat" - infra-red
"greenness" - imagery
Satellite sensor record information that is ideal for representation as a terrain
Density surfaces are a type of terrain
hydrogeology / groundwater
Sub-surface information is a terrain
LIDAR provides unprecedented terrain representation and possibilities
A terrain of viewsheds can be used as an input to visual assessment of landscapes
Gravity surfaces are a type of terrain used in geological studies
A small selection of examples...Terrains are everywhere!
A digital terrain model (DTM) is a dataset that represents ANY parameter that varies with distance (x,y). There are many types of terrains that can be represented in GIS.
A digital elevation model (DEM) is perhaps the most commonly know DTM. A DEM is a digital model or 3-D representation of the surface of the earth.
Other common DTMs include tempreature, pressure, rainfall, groundwater levels, density surfaces and distance surfaces.
from the very Big!
to the very Small!
attratction and or cost
Gravity and cost models are types of terrains