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Search for the Missing Pier

Above: The Gaithersburg Latitude Observatory is now a community park. My tale of locating the latitude pier of the Cincinnati Latitude Observatory, one of six international latitude observatories now defunct but historically significant. It was 1974, and I’d been working at the National Geodetic Survey (NGS) for two years. One...

Weekly xyHt News Links: 07/12/2019

 Review Rugged Tablet with 3D Imaging and GNSS for Realtime Mapping Microdrones to showcase their Integrated Systems on the West Coast during their California Summer Tour New Usage-Based Service Plans for Trimble Catalyst Enable Geospatial Organizations to Access Precise Positioning On Demand LIDARUSA ANNOUNCES LONG ENDURANCE MULTICOPTER LIDAR SOLUTION Virtual...

Many Sensors for a Tulip Tree Map

Above: The forests of Puerto Rico are second-growth, making for useful modeling. After hurricane deforestation in Puerto Rico, NASA scientists study forest regrowth using high-resolution, multi-sensor image data. The Biospheric Laboratory of the NASA Goddard Space Flight Center is dedicated to increasing knowledge about the Earth’s terrestrial ecosystem. One group...