Tagged: GPS

Satellite Orbits: Global Navigation Systems - Out of Space

Duncan Steel Feb 05, 2019

Apart from the US-provided Global Positioning System (GPS) used by most commercial navigation systems – such as in your car, or mobile phone – there are several distinct networks operated by other space agencies deploying their own satellite fleets. Here I describe the orbits employed by the Russian, European Union and Chinese GNSS constellations. (Part 3 in a series of … Read More

Satellite measurements of slow ground movements may provide a better tool for earthquake forecasting - Guest Work

Guest Author Oct 02, 2018

Simon Lamb, Victoria University of Wellington It was a few minutes past midnight on 14 November 2016, and I was drifting into sleep in Wellington, New Zealand, when a sudden jolt began rocking the bed violently back and forth. I knew immediately this was a big one. In fact, I had just experienced the magnitude 7.8 Kaikoura … Read More

Newly identified magma chamber explains Bay of Plenty earthquakes - News

Erica Mather Jun 07, 2016

A combination of satellite images, GPS data and survey information from the 1950s have enabled scientists to uncover a magma chamber under the Bay of Plenty coast, which they link to thousands of small earthquakes here between 2004 and 2011. Until this finding, published in Science Advances, the reason for the earthquake ‘swarm’ was thought to be tectonic. Now … Read More

On the Turning Away - MacDoctor

Jim McVeagh Dec 15, 2009

The news that Timaru Emergency Department is “turning away” patients (actually, sending them to their GPs) is exciting Labour’s health spokesperson, the barely noticeable Ruth Dyson. Labour MP and health spokesperson Ruth Dyson believes essential frontline health services are being cut. “You can’t get much more frontline than the emergency department. The Government promised there would be [...] Related posts: … Read More