Category Archives: Surveying

GPR on a Drone

Above: From left – Jim Salazar, Mario Carnevale, Ken McBride, Myles Danforth, Alexey Dobrovolskiy (the author), and Janis Kuze. An international research team used new UAV and GPR technology to locate a lost U.S. airplane 300 feet below the ice in Greenland.  On July 4, 2018, at Greenland’s Ice Cap, Jim Salazar and Ken McBride...

Silent Sentinels

An artist’s rendering of the south entrance portal of the Rotterdamsebaan tunnels under construction. Credit: BAM Infra. Monitoring Dutch tunnel construction under The Hague requires technology integration for tight tolerances. To address congestion in densely populated cities, transportation engineers and city planners are increasingly turning to tunnels. An example is the Rotterdamsebaan tunnel currently under...

xyHt Doer: Brennan O’Neill

Brennan O’Neill Hawaiian Pacific Branch Manager for Frontier Precision Frontier Precision has been in business since 1988, selling and supporting Trimble, Nikon, Zeb-Revo, and Spectra Precision hardware and software. One thing I get a kick out of at work is, after listening to the customer, showing them the exact thing they need to do their...

Coaching Robots

Continuous surveying (to support smart cities, infrastructure, geodesign, and construction) is opening expanded—but unconventional—roles for surveyors and geospatial practitioners. A member of your field crew that’s a bipedal, survey-rod-carrying robot may be in the distant future, but the work of field data collection has already been affected by robotics, namely in the form of process...

Single zone proposal

State Plane Coordinates 2022

Ready or not, here they come. Considering all of the outreach that the National Geodetic Survey (NGS) has been doing for the last couple of years, hopefully most of you are well aware of the National Spatial Reference System (NSRS) Modernization Project. That project will result in the replacement of both the North American Datum...

The Shutdown and Geodetic Services

Editor’s Note:  We find ourselves in another government shutdown that has affected services from the National Geodetic Survey (NGS)—like the automated online post-processing user system (OPUS) that surveyors have become increasingly reliant on. Several readers asked us to re-post the following from the retired NGS chief geodetic surveyor Dave Doyle, as relevant as it was...