Category Archives: Surveying

In this most accurate model of the geoid (by the European Space Agency’s GOCE mission), the colors represent deviations in height from an ideal 
geoid. Courtesy of ESA/HPF/DLR.

Canada’s New Vertical Datum: CGVD2013

Geodesy Editor’s Note: The study of Earth’s gravity field is one of the most important aspects of physical geodesy. While seldom mentioned in land surveying text books or discussed at local surveying, mapping, or GIS conferences, it is nonetheless one of the most important issues that geospatial experts deal with on a daily basis.   Changing...


Setting a Standard in Railway Renewal

A highly traveled section of the UK’s West Coast Mainline rail corridor (between Warrington and Preston) required the renewal of three miles (five km) of track among four major junctions. In an intensive, nine-day continuous spell, the innovation team at Network Rail completed the work almost 16 months earlier than proposed—and avoided disrupting rail travel....


An Interview with Ken Jennings

Speaker, Author, Geographer (and 74 -time winner of the popular game show, Jeopardy)   Ken Jennings, the winningest champion in the history of the TV quiz show Jeopardy, is widely celebrated as one of America’s smartest people. He is a busy guy; he makes appearances worldwide on television and at events and has authored numerous...


Wetlands Synergism

Professional interdependency is at the core of this project for acquiring federal conservation easements and restoring wetlands in Tennessee. Each item we touch these days has been shaped by a village of experts, from that cell phone in your pocket to the water coming out of the nearest drinking fountain. The surveying and engineering professions...


Sicilian Survey of the Norman Bridge

Standing at 10,970 feet tall, Italy’s Mount Etna dominates the eastern coast of Sicily and is the highest volcano on the European continent. At the foot of “the mountain,” as it is referred to by Sicilians, stretches a vast area of cultivated fields interlaced with a dense network of narrow streets bordered by the dry lava...

Phil Kerns of Visual Intelligence accepts the Grand Award at the 2014 MAPPS Geospatial Products and Services Excellence competition.

Visual Intelligence Takes Top MAPPS Honors

By xyHt Visual Intelligence captured the Grand Award at the 8th annual MAPPS Geospatial Products and Services Excellence Awards ceremony. The award was presented at the 2014 Geospatial and Engineering International Marketing Conference in Alexandria, Virginia on September 25, 2014. A software and sensor technology company based in Houston, Texas Visual Intelligence won with their...