Tag Archives: term confusion

What makes a PED, a PED?

The people who work in the Defense and Intelligence Community will attest to the large number of three letter acronyms they encounter daily. It’s not only the organizations (DoD, NGA, DIA, CIA, NSA, etc) but the technical terms too (NTM, … Continue reading

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More Geospatial Terminology Confusion

I was recently asked to clarify the difference between a coordinate system and a map projection.   This can be confusing, especially because some geospatial software (e.g., ENVI) handles unprojected coordinate systems exactly the same way that it handles map projections, … Continue reading

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Georeferencing vs. Georectification vs. Geocoding

I posted recently about confusion in the geospatial community around the terms DSM, DEM, and DTM.  Another set of terms that are used in different ways by different people are those that refer to the geo information associated with an … Continue reading

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DEM versus DTM versus DSM

There are a few terms that I find to be especially confusing to the community of people who use our geospatial software.  I thought it might be useful to clarify how I and others at Exelis VIS use some of … Continue reading

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