[Ips-dhfpr] SWS Daily HF Prop Report - 30 September 16 issued 2337 UT on 30 Sep 2016 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Sat Oct 1 09:37:42 EST 2016
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 SEPTEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (30 SEPTEMBER)
Date T index Conditions
30 Sep -8 Fair
Cocos Island Region:
Enhanced by 15% during local day.
Depressed by 30% during local night.
Niue Island Region:
No data available.
Northern Australian Region:
Depressed by 30% during local day.
Depressed by 20% during local night.
Depressed by 20% after local dawn.
Southern Australian Region:
Depressed by 35% during local day.
Depressed by 40% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
2. FORECAST (01 OCTOBER - 03 OCTOBER)
Date T index Conditions MUFs
01 Oct 0 Normal-fair 15 to 20% below predicted monthly
02 Oct 5 Normal-fair Depressed 15%/near predicted
03 Oct 15 Normal Near predicted monthly values
COMMENT: SWS HF Communications Warning 42 was issued on 29 September
and is current for 29 Sep to 1 Oct. Observed MUF's were strongly
depressed over most Australian regions throughout the UT day
30 September except on the day side for the equatorial Australian
regions. These depression are associated with the observed disturbed
geomagnetic conditions driven by a very large positive polarity
coronal hole. Slightly improved MUFs, though still near depressed
levels compared to monthly predicted values, are expected for
the next two days (1-2 October) as the ionosphere gradually recovers
from the aftermath of storms associated with the coronal hole.
For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Space Weather Services email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386 WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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