Category Archives: Surveying

Figure 1 A control traverse example.

I Don’t Need No Stinkin’ Statistics

This entry is part 6 of 7 in the series xyHt in print May 2015Surveying Statistics, Part 1 Do you perform GNSS surveys? Do you use OPUS or perform RTK surveys simply because you don’t understand your software’s output? Do you always use the compass-rule adjustment for traverse data simply because that’s the way you...

Ambassador Peter Thomson, Fiji’s permanent representative to the United Nations, presents to the General Assembly the resolution titled, “A global geodetic reference frame for sustainable development.”

A Global Geodetic Roadmap

This entry is part 7 of 7 in the series xyHt in print May 2015Above: Ambassador Peter Thomson, Fiji’s permanent representative to the United Nations, presents to the General Assembly the resolution titled, “A global geodetic reference frame for sustainable development.” The United Nations takes up the call to develop a global geodetic reference frame for sustainable international...

Surveying and civil engineering technology students (left to right: Wyatt Spencer, Brandon Davis, Jeremy Brunell, B.J. Klenke, Jake Blue, and Joe Irey) plumb up the rod before taking a measurement of the shadow in order to recreate Eratosthenes’ method for calculating the circumference of the Earth.

Proving Ancient Measurement Methods

This entry is part 4 of 7 in the series xyHt in print May 2015Surveying students calculate the Earth’s circumference by following Eratosthene’s method, with help from modern sources. As part of the Geodetic and Control Surveys class at Dunwoody College of Technology in Minneapolis, Minnesota, we have been studying the history of Eratosthenes and...

The new storage tank inspection tool in RealWorks

Time to Do More

xyHt has been watching a recent flurry of news releases and webinar announcements from Trimble tagged with the slogan “Time to Do More.” There were quite a few major new products and enhancements announced so we wondered: Was this simply a marketing campaign? Or was this some new direction for Trimble? We decided to ask...

Kirk Norton, NPS land surveyor for the AT, sets up a foresight in Pennsylvania with help from members of the Potomac Appalachian Trail club on the hill above him. Credit: Nicole Wooten.

Mapping the Appalachian Trail

This entry is part 1 of 7 in the series xyHt in print May 2015How the AT was created and surveyed, from Avery’s wheel to GPS The Appalachian Trail (AT) is very old, very long, and iconic. Completed in 1937, it stretches 2,189 miles through 14 states, 88 counties, 168 townships, eight national forests, six...

Warren Ward places a prism on an old pin.

The Right Right

This entry is part 3 of 8 in the series xyHt in print April 2015Igor Kidinsky thought about another career for a fleeting moment. His cold fingers struggled to fine-tune the total station. As an Afghanistan war veteran, he sometimes dreamt of spending his life closer to a beach rather than continue freezing in the...