eCite Digital Repository

Return of a GNSS villain: The ionosphere strikes again

Citation

Janssen, V and McElroy, S, Return of a GNSS villain: The ionosphere strikes again, Position, 60, pp. 40-45. (2012) [Magazine Article]


Preview
PDF
2Mb
  

Copyright Statement

Copyright 2012 Intermedia Group Ltd

Official URL: http://www.spatialsource.com.au/

Abstract

Every 11 years or so, the activity on the Sun reaches a peak. During this solar maximum, which can extend to several years either side of the actual peak, the Earth gets hammered by intense space weather. When storms of particles spat out from the Sun smash into the Earth’s atmosphere, the results can be spectacular. They are responsible for breathtakingly beautiful events like the dancing curtains of light known as the aurora (northern and southern lights). But they can also be equally vicious, causing widespread electrical power blackouts and disrupting navigation and communication systems worldwide. In regards to Global Navigation Satellite System (GNSS) observations, the ionosphere is still our biggest villain. The ionosphere is part of the Earth’s upper atmosphere and continues to be the single most important error source affecting GNSS observations. This article describes the ionosphere and how it is influenced by space weather. It goes on to discuss the likely effects of the approaching solar maximum (expected to occur in early 2013) on GNSS surveys in Australia. We conclude with the good news that Australian GNSS users should be alert, but not alarmed.

Item Details

Item Type:Magazine Article
Research Division:Engineering
Research Group:Geomatic Engineering
Research Field:Geodesy
Objective Division:Environment
Objective Group:Other Environment
Objective Field:Environment not elsewhere classified
Author:Janssen, V (Dr Volker Janssen)
ID Code:79442
Year Published:2012
Deposited By:Geography and Environmental Studies
Deposited On:2012-09-12
Last Modified:2014-06-06
Downloads:201 View Download Statistics

Repository Staff Only: item control page