SPOT 20 M DEM

SPOT 20M DEM
DEM Resolution: 20 meter
Projection: UTM
Datum: WGS 84
Format: GeoTIFF
Dates: 2002 - present

Email: info@mapmart.com
or call 303-759-5050 option 2

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SPOT 20M DEM

A SPOT DEM is a digital elevation model producted by automatic correlation of stereopairs acquired by the High Resolution Stereoscopy (HRS) instrument on SPOT 5. Unlike a digital terrain model (DTM), which describes the distribution of terrain or "bare earth" heights, a DEM includes "first surface" elevations with vegetation and man-made structures. A SPOT DEM has a post spacing of one arc second or 20 meters.

With more than 100 million square kilometers already covered across 2/3 of the globe's land surfaces, SPOT DEM is the ideal solution to ensure rigorous registration of all your data.

SPOT DEMs significantly improve registration of data layers in digital mapping. They also are therefore widely used in geographic information systems (GIS) for land mangement and terrain modelling. Applications include: impact studies, rail and road infrastructure studies, mobile telecommunications engineering, stuctural geology surveys, oil exploration, erosion studies, mapping, flight simulation. A SPOTView Ortho can be draped over a SPOT DEM for a more realistic 3D view of terrain, which helps multidisciplinary teams to work more closely together.

Why SPOT?
  • Easy to use cartographic or geographic projection
  • Priced per square km. and framed to match your exact region of interest
  • Quick turnaround of 2 weeks for areas < 20,000 square km.
Absolute accuracy Area covered
by
reference 3D		 Area of
100,000 to
150,000 Sq. Km.		 Area
< 7,200 Sq. Km.
Horizontal <= 15 M <= 15 M <= 30 M
Vertical (slope < 20%) <= 10 M <= 10 M <= 20 M
Values guaranteed with 90% confidence.

Note: The delivery time on existing data is 2 weeks for the existing data and 6-8 weeks for data that needs to be created.


Pricing Samples Coverage

Price to be quoted. Please call 303 759 5050 Option 2 or email info@mapmart.com for details.