Geomagnetic observatories: Monitoring the Earth's magnetic and space weather environment September 2014 Weather 69(9) DOI: 10.1002/wea.2329 Alan Thomson Volume 69, Issue 9 Special Issue: Space weather September 2014 Pages 234-237 Geomagnetic observatories: monitoring the Earth's magnetic and space weather environment Alan W. P. Thomson Pages: 234-237 First Published: 29 August 2014 ----------------------------------------