xyHt in print February 2015 Archives

Exceeding the Limits

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This entry is part 1 of 8 in the series xyHt in print February 2015

Forensic survey technology is now a need rather than a luxury as Latin America’s urban concentration accelerates. For decades the art and science of determining how a crime was commit-ted and how a car crash occurred has relied on expert hypotheses based on personal experience and memory. Experts have used tape measures, cameras, and paper […]

Inspired to Cross the Line

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This entry is part 2 of 8 in the series xyHt in print February 2015

A former police officer hangs up his cuffs to make a greater impact supplying police departments with vital forensics equipment. Precision Survey Supply in Rancho Cucomonga, California, provides equipment to construction and survey companies as well as municipal agencies, but the customers nearest and dearest to the heart of company founder and owner Sam El-Said […]

Protecting Water Purity

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This entry is part 3 of 8 in the series xyHt in print February 2015

Above: Croton Lake Gatehouse at the Old Croton Reservoir in Westchester County is the oldest part of the city’s current water system.  At the reservoir’s construction in 1842, it had the capacity of delivering about 90 million gallons of water per day to the city.  Surveying the NYC Watershed Where does the water you drink […]

Navigating Without Addresses

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This entry is part 4 of 8 in the series xyHt in print February 2015

New codes aim to bring billions of people into the geospatial market. When we mail a letter to an address in an industrialized country or navigate to that location, we rely, without giving it much thought, on a centuries-old system of street names and numbers, augmented in the case of mail by the later invention […]

GNSS Antennas that Protect and Observe

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This entry is part 5 of 8 in the series xyHt in print February 2015

Editor’s note: Public awareness of the potential for interference and jamming has rightfully increased over the past few years; due partially to at least one high profile incident each of “trucker jammers,” news of battlefield jamming, the jamming event along the North Korean border, and an inadvertent interference instance of naval origin in San Diego. […]

Survey Web Tools

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This entry is part 6 of 8 in the series xyHt in print February 2015

How to use them for land survey planning and reconnaissance.  When I first used GNSS, it was my usual practice to go to the National Geodetic Survey (NGS) website to gather the data sheets for control monuments in the vicinity of my project area. I would plot these in a program called TopoScout, a topographic […]