Click on the cover below to view the July 2019 issue of xyHt magazine. Articles in the issue include (links will turn live throughout July):

• Dr. Gladys West – The quiet dedication of a hidden hero who made satellite geodesy and global positioning possible.
• The Enablers of GIS – Without the commercial success of Jack and Laura Dangermond’s company, Esri, GIS would never have touched our lives the way it has.
• Construction Staking – Are you doing it right?
• Many Sensors for a Tulip Tree Map – After hurricane deforestation in Puerto Rico, NASA scientists study forest regrowth using high-resolution, multi-sensor image data.
• Piping Hot Tech –  From crowded boiler rooms to hard-to-reach underground tunnels, BIM experts tell us how following a smooth workflow is key to rapidly creating accurate 3D pipe models from point clouds.
• Search for the Missing Pier – My tale of locating the latitude pier of the Cincinnati Latitude Observatory, one of six international latitude observatories now defunct but historically significant.
• Accuracy with a Phone? – Photogrammetry is now possible using consumer devices, and the applications are vast.