Category Archives: DEM/DSM/DTM

DEM/DSM/DTM…NDSM?

Posted on January 12, 2011 by bloglidar

I received a comment about NDSM (Normialized Digital Surface Model). I looked it up and it is a representation of elevation objects on a flat surface. It is genrated by using the difference between the DSM and DTM. Anyone care … Continue reading →

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Posted in DEM/DSM/DTM, LiDAR technology | 2 Comments

LiDAR Workshop -ALASKA

Posted on January 12, 2011 by bloglidar

Keith Cunningham and Rob Merry will be holding a Day long LiDAR workshop at the 45th Annual Alaska Survey & Mapping Conference In Anchorage. This workshop will cover several phases of LiDAR and further explain DSM/DTM/DEM, Datums and Coordinate systems … Continue reading →

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DEM-DSM-DTM

Posted on December 16, 2010 by bloglidar

I have created a category DEM/DSM/DTM so if you want to just look at information by category and goto the categories pull down on the right and select a category to view such as DEM/DSM/DTM and you will see only … Continue reading →

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DEM/DTM/DSM

Posted on December 8, 2010 by bloglidar

There has been much discussion about the definition of DEM, DTM, DSM. There will continue to be much debate and discussion on the meaning of these terms. I think and as recommended by other well versed individuals in our industry, … Continue reading →

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DEM-DSM-DTM

Posted on December 6, 2010 by bloglidar

What’s the difference between a DTM, DSM, and DTM? Several People have different Views on this so I am posting definitions from Keith Cunningham, Which I agree with. DSM – Essentially the full point cloud, with ground, structures, and vegetation. … Continue reading →

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Posted in DEM/DSM/DTM | 6 Comments