[Ips-whfpr] IPS Weekly Prop. Report (18 July 07)
rwc
rwc at ips.gov.au
Wed Jul 18 13:44:18 EST 2007
SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 18/0200Z JULY 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (11 JULY - 17 JULY)
Date T index Conditions
11 Jul 14 Normal
MUFS:
Equatorial PNG/Niue Region:
Depressed by 20% during local day,
Enhanced by 20% during local night.
Northern Australian Region:
Depressed by 15% during local day,
Enhanced by 20% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
12 Jul 7 Normal
MUFS:
Equatorial PNG/Niue Region:
Near predicted monthly values during local day,
Enhanced by 25% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values.
13 Jul 6 Normal
MUFS:
Equatorial PNG/Niue Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted montly values with periods of
minor to mild depressions and degradations.
14 Jul 12 Normal
MUFS:
Equatorial PNG/Niue Region:
Near predicted monthly values.
Northern Australian Region:
Depressed by 20% during local day,
Enhanced by 15% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values with periods
of degradations.
15 Jul 16 Normal
MUFS:
Equatorial PNG/Niue Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values observed at Casey with
depressions to 30% 02-07 UT. Night sporadic E also
observed at Casey.
16 Jul 14 Normal
MUFS:
Equatorial PNG/Niue Region:
Near predicted monthly values.
Northern Australian Region:
Mostly near predicted monthly values,
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 25% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values.
17 Jul 9 Normal
MUFS:
Equatorial PNG/Niue Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 25% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values.
Predicted Monthly T index for July: 10
2. FORECAST (18 JULY - 24 JULY)
MUFS: MUFs near predicted monthly values 18-Jul to 20 Jul.
MUF depressions possible 21-Jul to 24-Jul
Propagation conditions: Normal. No SWFs
T index: 5
3. OUTLOOK (25 JULY - 24 AUGUST)
Degraded HF propagation conditions possible:
07-Aug,13-Aug,15-Aug.
PLEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.
For an explanation of some of the terms in this report, goto
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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