Washington State Search and Rescue Coordinators Association

COLUMBUS, Ohio – Researchers who are working to fix global positioning system (GPS) errors have devised software to take a more accurate measurement of altitude – particularly in mountainous areas.

The software is still under development, but in initial tests it enabled centimeter-scale GPS positioning – including altitude – as often as 97 percent of the time.

Researchers hope the software will help to improve the vertical accuracy of measurements in potentially hazardous regions at high altitudes, such as areas of soft, loose land that may be prone to landslides. They also claim that their software could be used to measure how quickly glaciers at high altitudes are melting.

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