[Ips-whfpr] IPS Weekly Prop. Report (30 July 03)
rwc
rwc at ips.gov.au
Wed Jul 30 11:56:19 EST 2003
SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 30/0200Z JULY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (23 JULY - 29 JULY)
Date T index Conditions
23 Jul 78 Normal
MUFS:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 30% during local night, and after
local dawn.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Enhanced by 15% during local day,
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
24 Jul 80 Normal
MUFS:
Equatorial PNG Region:
Near predicted monthly values during local day,
Brief depressions during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 15% during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Mostly near predicted monthly values.
25 Jul 86 Normal
MUFS:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 25% after local dawn.
Northern Australian Region:
Near predicted monthly values with isolated overnight
depressions.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Mostly near predicted monthly values.
26 Jul 74 Normal
MUFS:
Equatorial PNG Region:
Enhanced by 20% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Isolated depressions of 15% during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Mostly near predicted monthly values.
27 Jul 70 Fair-normal
MUFS:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Periods of depressions during local night.
Antarctic Region (Casey/Scott Base):
Extended periods of disturbance over the UT day.
28 Jul 60 Fair-normal
MUFS:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 10-30% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values,
Mild depressions after local dawn.
Antarctic Region (Casey/Scott Base):
Extended periods of localised disturbance.
29 Jul 63 Normal-fair
MUFS:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 10-30% during local night.
Northern Australian Region:
Mostly near predicted monthly values,
Mild depressions after local dawn.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Extended periods of disturbance.
Predicted Monthly T index for July: 63
2. FORECAST (30 JULY - 05 AUGUST)
MUFS: Depressed 15% on 30-31 Jul, mildy depressed after local
dawn on 01-03 Aug, otherwise MUFs near normal. No SWFs.
Propagation conditions: Fair-Poor 30-31 Jul Fair 01-03 Aug,
otherwise normal. No SWFs
T index: 70
3. OUTLOOK (06 AUGUST - 05 SEPTEMBER)
Degraded HF propagation conditions possible:
07-Aug to 16-Aug, 21-Aug to 30-Aug, 03-Sep to 04-Sep.
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.
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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