Surveying

Shifting Ground: GNSS for Earthquakes
February 19, 2018

This is the third article in a series in xyHt introducing readers to scientists and technologists who work in pursuit of early-warning...


Recording, Registration, and Cadastres
September 18, 2017

An accurate and up-to-date record of property boundaries is essential for administering property taxes, enforcing environmental...


Geodetic Control over Time and Space in California
August 4, 2017

Interview with Scott Martin, Chief of Geodetic Control and GNSS Surveys, California DoT Matteo Luccio: Scott, what is your...


Shifting Ground: USGS on Earth Movement after an Earthquake
June 29, 2017

Ken Hudnut, science advisor for risk reduction, US Geological Survey, talks GPS and earthquakes Editor’s note: In many...


The iCon build: Adding Adaptable Options for Layout Automation
June 29, 2017

At CONEXPO 2017, we were given a demonstration of one tool in the new wave of automated layout solutions for vertical...


Neutrino Beam! Scanning a Ring Tunnel
April 17, 2017

The surveying challenges for construction related to a particle accelerator are exacting—but surprisingly familiar. Trillions...


Geospatial PPPs
February 21, 2017

Land ownership is a foundation of national economies: those who have land titles can use them to obtain credit (which is often...


Comparing Maps a New Way
February 21, 2017

The positional accuracy of geospatial technologies has improved dramatically in the past few decades, and digital maps have...


A Global Geodetic Roadmap
February 21, 2017

Geospatial technologies that have quickly become commonplace and essential in industrialized countries can be enormously...


Capturing the Bluestone Dam
February 21, 2017

The Bluestone Damon the New River in West Virginia was completed in 1952. It’s 165 feet high above the stream bed and about...