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  • [ January 9, 2026 ] Satellite Data and Reporting Highlight Subsidence Patterns Along South Florida Barrier Islands Geologic Hazards
  • [ January 7, 2026 ] Keller Shares 2025 Year in Review Video Available Resources
  • [ January 2, 2026 ] Polyurethane Grouting for Foundation Re-Use at the Kentucky International Convention Center Ground Improvement
  • [ December 29, 2025 ] When Geotech Meets Reality: Project from Hell Award Miscellaneous
  • [ December 9, 2025 ] Geovert Video Highlights Kaikōura Earthquake Recovery From the Contractor’s Perspective Geologic Hazards
Homesatellite

satellite

Photo monitoring of the Achoma Landslide in Peru
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Displacement Monitoring from Satellite Images for Achoma Landslide, Peru

July 8, 2020 rockman Comments Off on Displacement Monitoring from Satellite Images for Achoma Landslide, Peru

Some friends at NHAZCA S.r.l. in Rome, Drs. Serena Moretto and Paolo Mazzanti, have been demonstrating their company’s technology to use satellite imagery to produce highly accurate displacement measurements and maps. Serena recently posted a […]

Locata GPS-like device
Available Resources

Locata’s Ground-Based GPS Mimic with Centimeter Accuracy

August 5, 2011 rockman Comments Off on Locata’s Ground-Based GPS Mimic with Centimeter Accuracy

The principle behind GPS technology is relatively simple, you have a network of satellites where their location is known to a high degree of accuracy, and you have a way to determine the distance between […]

The Global Positioning System IIF satellite, developed and built by Boeing, is the next generation of GPS space vehicle. (U.S. Air Force graphic)
Miscellaneous

New GPS satellite launched by US Air Force, first in series to replace all existing GPS satellites

June 7, 2010 rockman Comments Off on New GPS satellite launched by US Air Force, first in series to replace all existing GPS satellites

The new satellites are for military as well as civilian use and are meant to replace the aging system of satellites that are currently in service. They offer a number of improvements, including a stronger […]

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