dtm or dsm

WorldDEM in Brief – DTM or DSM ?

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The WorldDEM Digital Terrain Model (DTM) is now commercially available for all users that need superior terrain information anywhere on the globe. The WorldDEM DTM is derived from the WorldDEM™ Digital Surface Model (DSM) product by removing vegetation and man-made objects to show the bare terrain of the Earth’s surface. 

This high-quality WorldDEM DTM provides an excellent foundation layer for applications such as civil engineering (e.g. road design, Earth work calculation), the management of natural resources as well as planning and implementation of military operations (e.g. vehicle trafficability analysis, 3D terrain visualisation).

 

  • Superior terrain information anywhere on Earth
  • Can be delivered based on the high-resolution WorldDEM™ for any point on the globe
  • Unrivaled accuracy: 5m (relative) / 10m (absolute) vertical accuracy in a 12m x 12m raster
  • Easy access and fast delivery

Checkout WorldDem now..

 

DEM Earth updates – catch 22

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Recently I have had some difficult experiences putting out updates. I Spent months on an update, and gave it away for FREE, to all R2 users. there was pretty much no reaction from customers. A very strange feeling. I got 2 emails back, thanking me for this work.

So I decided to try something out.  Today, I put out another great DEM Earth update, for FREE. but only released it to those customers who had purchased Download Insurance via Avangate. They paid extra, to have their links not expire for 2 years, and can instantly download again, using that after sale download link. They should have priority, in my opinion, and that is fair in my eyes. On release, I sent out an email to all DEM Earth customers.  Surprise, Surprise, within 30 mins I had  ~20 emails from disgruntled customers all asking why they had to wait for an update. So the catch 22  situation is. If its free, and I just give it out, nobody gives a shit. If its free, and I don’t give it to everyone, those not getting their stuff, get upset, thinking they are missing out, or being treat less than others. Suddenly they need to have it, real bad. Restricting distribution, creates a demand.  At least I know they are still interested !

Paul