[Ips-whfpr] IPS Weekly Prop. Report (23 February 11)
rwc
rwc at ips.gov.au
Wed Feb 23 13:00:42 EST 2011
SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 23/0200Z FEBRUARY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (16 FEBRUARY - 22 FEBRUARY)
Date T index Conditions
16 Feb 44 Normal
MUFS:
Cocos Island Region:
Mostly near predicted monthly values.
Enhanced by 35% after local dawn.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
17 Feb 48 Normal
MUFS:
Cocos Island Region:
Enhanced by 30% during local day.
Enhanced by 35% during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Enhanced by 30% during local day.
Enhanced by 50% during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
18 Feb 57 Normal
MUFS:
Cocos Island Region:
Enhanced by 25% during local day.
Enhanced by 25% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 40% during local night.
Northern Australian Region:
Enhanced by 30% during local day.
Enhanced by 45% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 20% over the UT day.
19 Feb 21 Normal-fair
MUFS:
Cocos Island Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Depressed by 20% after local dawn.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 25% over the UT day.
20 Feb 22 Normal-fair
MUFS:
Cocos Island Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 25% over the UT day.
21 Feb 32 Fair-normal
MUFS:
Cocos Island Region:
Near predicted monthly values with enhancements to
40% 06-14 UT. Depressions to 20% 20-21, 23 UT.
Niue Island Region:
Near predicted monthly values with enhancements to 55%
00-09, 23 UT.
Northern Australian Region:
Near predicted monthly values with depressions to 45%
19-21 UT at Darwin. No data from Townsville.
Southern Australian and New Zealand Region:
Near predicted monthly values to 20% depressed.
Depressions to 35% 18-19 UT at Brisbane and Canberra,
to 30% 03, 19 UT at Sydney and 00-03 UT at Perth.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to 20% depressed.
Occasional depressions to 35%.
22 Feb 24 Normal-fair
MUFS:
Cocos Island Region:
Near predicted monthly values. Enhancements to 20%
07-09 UT and depressions to 25% 03-04, 13-18, 23 UT.
Niue Island Region:
Enhancements to 35% 00-06 UT and depressions to 23%
08-12 UT. Near predicted values at other times.
Northern Australian Region:
Near predicted monthly values with depressions to 23%
05-07 UT at Darwin. No data from Townsville.
Southern Australian and New Zealand Region:
Near predicted monthly values. Depressions to 20%
08-14 UT at Brisbane, Canberra, Norfolk Is. and
Sydney. Depressions to 20% 02-13 and 19-20 UT at
Hobart. Enhancements to 30% 18-21 UT at Perth.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values with depressions to 20%
mostly 00-07 UT.
Predicted Monthly T index for February: 38
2. FORECAST (23 FEBRUARY - 01 MARCH)
MUFS: Near predicted monthly values to 20% depressed.
Deeper depressions possible on 1 March.
Propagation conditions: Fair to normal. Chance of SWFs until
25 February.
T index: 20
3. OUTLOOK (02 MARCH - 01 APRIL)
Degraded HF propagation conditions possible: 4 March, 23 March
and 27 March.
PLEASE NOTE:
Space weather conditions can frequently be determined by short
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.
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.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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