GB2RS Propagation News
Propagation News – 3 April 2016
This past week saw continued low to medium geomagnetic disturbances thanks to ongoing solar coronal holes. A geomagnetic storm watch has been issued for the 2nd of April due to a disturbed interplanetary magnetic field, coupled with elevated solar wind speeds from a coronal hole high speed stream. This could see the K index climb […]
Propagation News – 27 March 2016
This week has seen more settled geomagnetic conditions with the K-index hovering around two, although Wednesday saw it spike up to four due to a high speed solar wind stream from a coronal hole. Sunspot wise, the solar surface was a little lacklustre, with just one sunspot group visible. This pushed the solar flux index […]
Propagation News – 20 March 2016
This week has seen continued geomagnetic storms, thanks to a high-speed solar wind stream flowing from a geo-effective coronal hole on the sun’s surface. As we predicted, last weekend was reasonably settled, but then it all went pear shaped. The K-index hit five on Tuesday night, and five again on Wednesday night, this time remaining […]
Propagation News – 13 March 2016
Last week we said that a geo-effective solar coronal hole looked like it might threaten the Earth, and we were right. Its open magnetic field allowed plasma to escape, impacting the Earth on Monday and sending the K-index up to six. This also sparked visible aurora, which were seen in southern UK. This didn’t bode […]
Propagation News – 6 March 2016
Solar activity was at lower levels this week. The Solar Flux Index declined to 91 on the 29th, before recovering toward the end of the week. However, it never quite reached 100. Geomagnetic conditions were reasonably settled, with the A index in single figures and the K index hovering between one and three. This was […]
Propagation News – 28 February 2016
This week didn’t bring the better HF conditions that we talked about in the last GB2RS. This was due to a declining solar flux index and generally active geomagnetic conditions. The SFI declined to 88 by Thursday due to a lack of sunspots, although NOAA had predicted around 100 to 110. The K-index also fluctuated […]
