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Now that the National Geodetic Survey has released the new Geoid18 model, you can now download and load it into GPS Pathfinder Office. There are a number of improvements over Geoid12B including advancements in digital elevation modeling techniques and better elevation data. There was also a 26% increase in the number of Bench Marks collected [...]
Once only a slogan scrawled on GNSS developers’ whiteboards, the mantra of “centimeter accuracy for everyone, everywhere” is coming true. The ability to achieve survey-grade (2cm horizontal and 5cm vertical) GNSS-derived positions without post-processing, a base station, network, radio, or cell service has long been atop every forward-thinking surveyor’s wish list. Today it is here. [...]
Since the early days of satellite-based surveying, geospatial professionals have struggled to get centimeter-level accuracy when working on remote sites. Enter real-time kinematic (RTK) and real-time GNSS networks (RTN), both providing centimeter-level positioning in real time. In a recent article in America Surveyor, Trimble’s Mark Richter looks at the limitations of RTK and RTN and [...]
Christian Brodbeck is an engineering professor with Alabama’s Auburn University. On a recent trip to East Africa, he and six students constructed a water distribution system in an isolated village in Rwanda where there is no electricity or running water. And, of course, no WiFi. Yet Brodbeck has received some of the highest accuracy positioning [...]
One of the world’s most famous volcanoes, Italy’s Mount Etna, is also among the most active. Etna’s ongoing eruptions attract scientists seeking to better understand the volcanic activity and develop tools to predict the mountain’s behavior. In a recent interview with Trimble experts, geophysicists from Slovakia and Italy discuss how they use a Trimble® R10 [...]