[Ips-dhfpr] IPS Daily HF Prop Report - 14 June 13 issued 2330 UT on 14 Jun 2013
Regional Warning Centre
rwc at ips.gov.au
Sat Jun 15 09:30:21 EST 2013
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 JUNE 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (14 JUNE)
Date T index Conditions
14 Jun 57 Normal
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 25% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Predicted Monthly T index for June: 67
2. FORECAST (15 JUNE - 17 JUNE)
Date T index Conditions MUFs
15 Jun 55 Normal Near predicted monthly values
16 Jun 60 Normal Near predicted monthly values
17 Jun 60 Normal Near predicted monthly values
COMMENT: Ionospheric support for HF propagation is expected to
remain near to monthly predicted values. However, spread F conditions
have been occurring during the night at Australian mid-latitude
stations and the plasma density has been trough like above Macquarie
Island. Consider using lower operating frequencies during the
night-time episodes of spread F to increase the reliability of
mid-latitude circuits. Some winter time sporadic E layers have
also been present.
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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
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