Category Archives: Professional Surveyor Archives

Spiral Curve Offsets

Editor’s Note: Spiral curves have been used in engineering design for centuries, most prominently for railroads coincident with the worldwide boom in railway construction in the late 1800s. Many who have had to lay out or retrace spiral curves (especially any offsets) might have secretly cursed whoever chose to add them to the design and...

Arctic Quests

Multiple agencies and technologies merge to map a historic region of the Canadian Arctic.   Adapted from the academic paper, “Arctic Charting and Mapping Pilot Project 2: Sharing Modern Technologies and Resources towards a Common Goal”, by Andrew Leyzack and summarized by Steven Keesee, with a history sidebar by Jeff Salmon.In April 2011, multiple organizations in...

Least Squares: The Great Arbitrater

When it comes to evaluating surveying and geodesy measurements, many people rely on the mathematical sophistication and primacy of least squares network analysis and adjustment to provide the “final answer.” While a few surveyors may be confident in the tightness of the solutions produced by their instrumentation and view this idea of adjusting survey networks...

“Protect and Serve” Your Business and Your Future

When I lead seminars in various states, I encounter surveyors of all ages, backgrounds, sizes, shapes, and economic positions. I see two things that break my heart. The first is a surveyor in the 70-year-old age bracket who is still working full-time, not because of a love of surveying but out of the necessity to...

Beaming Down

How can you add a multibeam system to your hydrographic survey operations? A company that provides equipment and integrates systems for marine positioning and survey products explains the priorities and steps. The hydrographic surveying industry continues to evolve its instrument technology. Project plans that used to be dominated by single beam echo sounders and DGPS...