Highest Peak in North America to be Surveyed

June 16, 2015By

A new GPS survey of Mount McKinley, the highest point in North America, will update the commonly accepted elevation of McKinley’s peak, 20,320 feet. The last survey was completed in 1953. The USGS, along with NOAA’s National Geodetic Survey (NGS) and the University of Alaska Fairbanks (UAF), are supporting a GPS survey of the Mount McKinley apex. Surveying technology and processes... read more

The Halloween Storms: When Solar Events Spooked the Skies

October 30, 2013By

Ten years ago, scientists watching the skies experienced a Halloween fright of cosmic proportions, when space weather degraded GPS signals, affecting land and ocean surveys, and commercial and military aircraft navigation. The most extreme of what became known as the Halloween Storms hit on October 30, 2003 — ten years ago today. According to the National Oceanic and Atmospheric Agency,... read more