Site News
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HomeSite News Saturday, Dec 07 2019 09:55 UT

Site News

  • 07 Nov 2019 – Bureau of Meteorology Aviation Space Weather Advisories: http://www.bom.gov.au/aviation/space-weather-advisories/ More
  • 07 Nov 2019 – Space Weather Advisories brochure and Space Weather Hazard for aviation brochure
  • 07 Nov 2019 – Space Weather Services is a member of an international consortium consisting of partner in France, Canada and Japan (ACFJ). The consortium provides ICAO aviation space weather advisories.
  • 07 Nov 2019 – The new global ICAO aviation space weather advisories service in support of civil aviation operations commenced at 0000 UTC on 7 November 2019.
  • 05 Nov 2019 – SWS scheduled maintenance between 0000-0130 UTC 5 October 2019 completed.
  • 29 Oct 2019 – Between 0000-0130am UTC on 5-Nov-2019, system upgrades are scheduled that will affect the update of some products on this site. As generation of some website products will be interrupted briefly.
  • 21 Oct 2019 – An all sky radio spectrograph is located at the ASA Meckering site. This covers the frequency range from 20 to 80 MHz, which is swept every second More
  • 21 Oct 2019 – From 15 October 2019 geomagnetic observations from Launceston have ceased and the equipment has been decommissioned.
  • 14 Oct 2019 – SWS Email list server maintenance outage of one hour expected 2200-2300 UTC 14 October
  • 07 Jan 2019 – INAG Newsletter 2019-01! Ionosonde Network Advances and International GIRO Forum More
  • 05 Sep 2018 – Based on autoscaled ionospheric data, monthly medians data is now available online. More
  • 05 Sep 2018 – Hourly and 5 minutes autoscaled ionospheric data and manually checked (valided) hourly data is available online. More
  • 06 Mar 2018 – To support HF communications in the PNG region the Australian Bureau of Meteorology produces HAP charts for Aitape, Port Moresby and Rabaul. To view these charts click on more, select the location from the drop down list, and click display. More
  • 15 Feb 2018 – Tonga real time HF communications support. Click on More. Select Tonga in drop down list and click display. More
  • 23 Aug 2017 – Peak virtual height maps of the F2-layer (h’F2) have been removed from the website (they were at the bottom of http://www.sws.bom.gov.au/HF_Systems/1/4). Virtual height is determined from the time required for the radiowave to travel to the ionospheric layer, assuming that the wave is propagating at the speed of light. For instance, an ionogram shows a series of transmitted radiowave frequencies and the virtual height at the reflection point, if any, of these frequencies. Using modelling techniques, the frequency vs virtual height profile of the ionosphere can be converted to a frequency vs true height profile. It has therefore been decided that the virtual heights (h’F2) maps will be replaced by the true height maps of the F2-layer (hmF2) on the website. An update will be provided once this has been accomplished. More
  • 26 Jun 2017 – An information sheet on the impacts of space weather on critical infrastructure from the Attorney-General's Department and the Bureau of Meteorology has been added to the website. More
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