13 Aug 2019 –
Maintenance Works: were completed 0200 UTC 13 Aug 2019
12 Aug 2019 –
Maintenance works will be undertaken 0100-0300 UTC 13 Aug 2019. A short outage may be experienced in this period.
07 Jan 2019 –
INAG Newsletter 2019-01! Ionosonde Network Advances and International GIRO Forum
05 Sep 2018 –
Based on autoscaled ionospheric data, monthly medians data is now available online.
05 Sep 2018 –
Hourly and 5 minutes autoscaled ionospheric data and manually checked (valided) hourly data is available online.
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.
15 Feb 2018 –
Tonga real time HF communications support.
Click on More.
Select Tonga in drop down list and click display.
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.
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.
22 Jun 2017 –
Sydney HF Radio Propagation Course - 21 July
06 Jun 2017 –
A link to the INAG - Ionosonde Network Advisory Group Home page has been added to the SWS World Data Centre home page.
A new issue of INAG Bulletin has been published.
05 Jun 2017 –
Some minor changes to this website may affect how the page header renders if the old stylesheet has been cached on your browser. Clearing the browser cache with CTRL F5 should fix the issue.
01 Jun 2017 –
Our new webpages gather content that help determine current aurora viewing conditions. The improved Auroral Oval Tool displays locations of past sightings. Look for the Aurora page in the site menu.
15 May 2017 –
Minor changes will be made on 24/05/17 to the following website pages to reflect the fact that the information to which they pertain is also available via the Space Weather API. www.sws.bom.gov.au/Geophysical/1/2, www.sws.bom.gov.au/Geophysical/2/1, www.sws.bom.gov.au/Geophysical/2/2, www.sws.bom.gov.au/Geophysical/2/4, www.sws.bom.gov.au/Products_and_Services/4/1.
15 May 2017 –
Space Weather Services now offers a Space Weather API that provides current information regarding K index values, magnetic alerts, geophysical warnings and aurora notices.
02 May 2017 –
One day courses about HF Radio Propagation have been planned to be presented in Perth on 25 May and Canberra on 1 June 2017. The running of the courses will be confirmed after completing the registrations.