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GPS and Principles of Navigation

One in the constellation of 24 GPS satellites that transmits radio signals to Earth from 11,000 miles in space. One in the constellation of 24 GPS satellites that transmits radio signals to Earth from 11,000 miles in space - NOAA Photo

Understanding GPS and principles of navigation will improve your outdoor experiences. Outdoor enthusiasts  should understand the basic navigation principles that underlie the basis of modern GPS receivers. This knowledge will improve your results and ease of use. Once mariners started leaving sight of land, they have looked for ways to improve their navigational skills. Global […]

Tsunami Recovery and Reconstruction

Fishing boat beached at Aonae, Okushiri Island after the July 12, 1993 Hokkaido Japan earthquake and tsunami. Image Credit: Commander Dennis J. Sigrist. International Tsunami Information Center

A tsunami exceeding three feet in height can cause a number of infrastructure problems. These include technological emergencies like fire, explosion, or release of hazardous materials. Damage caused by the water can disrupt services or utilities like water, gas, sewer or electrical service. It is important to think about the steps necessary for tsunami recovery […]

Alaska Earthquake Information Center – E

Alaska Earthquake Information Center - Alaska 1964 Good Friday Earthquake Damage - Photo by NOAA

The Alaska Legislature established the Alaska Earthquake Information Center (AEIC) by statute in 1986. Home of the world’s second greatest earthquake, recorded in 1964, and the most seismically active state in the Union, Alaska has a selfish interest in monitoring earthquake activity within the state. Alaska Earthquake Information Center The Alaska Earthquake Information Center acts […]