[Ips-whfpr] IPS Weekly Prop. Report (13 August 08)
rwc
rwc at ips.gov.au
Wed Aug 13 10:27:13 EST 2008
SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 13/0200Z AUGUST 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 AUGUST - 12 AUGUST)
Date T index Conditions
06 Aug -7 Normal
MUFS:
Equatorial PNG/Niue Region:
Near predicted monthly values with depressions to 40%
at Vanimo 05-09 and 11-15 UT. Depressions to 30% at
Niue 01-02, 05 and 08 UT. Night spread F observed.
Northern Australian Region:
Near predicted monthly values to 50% enhanced at
Darwin; depressions to 30% 00-06 and 21 UT. For other
stations, near predicted monthly values with
occasional depressions to 30%. Some night spread F
observed at all stations.
Southern Australian and New Zealand Region:
Near predicted monthly values. Enhancements to 60%
observed at Christchurch 09-19 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values with occasional
depressions to 25%.
07 Aug -4 Normal
MUFS:
Equatorial PNG/Niue Region:
Depressed 15-45% at Vanimo 00-20 UT, occasional
sporadic E observed. Near predicted monthly values at
Niue with depressions to 25% 00-02 UT and 16-22 UT,
some night spread F observed.
Northern Australian Region:
Near predicted monthly values with depressions to 30%
00-07 UT and 18-21 UT at Darwin, and at other stations
occasional depressions to 25% 00-03 UT and 17-22 UT.
Some night spread F observed.
Southern Australian and New Zealand Region:
Near predicted monthly values with enhancements to
over 30% 08-20 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to 20% depressed.
08 Aug 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 monthly values.
09 Aug -3 Normal-fair
MUFS:
Equatorial PNG/Niue Region:
Mostly 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.
10 Aug -2 Normal-fair
MUFS:
Equatorial PNG/Niue Region:
Frequencies at Vanimo were mostly depressed to 50%
03-16 UT, otherwise near predicted monthly values;
sporadic E observed 14-20 UT. At Niue frequencies were
mostly near predicted monthly values with depressions
to 25% 21-23 UT. Some night spread F observed.
Northern Australian Region:
Mostly near predicted monthly values. Depressions to
25% observed at Darwin 04-06 and 20-21 UT and
Townsville 00 and 23 UT. Night spread F observed.
Southern Australian and New Zealand Region:
Near predicted monthly values. Enhancements to 50%
observed at Christchurch and Hobart around 09-20 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly depressed 15 to 40%.
11 Aug -5 Normal
MUFS:
Equatorial PNG/Niue Region:
Depressed to 50% at times at Vanimo. Niue frequencies
were mostly near predicted monthly values with
depressions to 30% 02-03, 08 and 20-23 UT. Sporadic E
observed at Vanimo 06-19 UT and Niue 01-09 UT.
Northern Australian Region:
Mostly near predicted monthly values. Depressions to
30% at Darwin 03-06 UT and Townsville 23 UT. Sporadic
E observed at Darwin 05-17 UT and Townsville 09-11 UT.
Southern Australian and New Zealand Region:
Near predicted monthly values with enhancements to 40%
10-20 UT. Night spread F observed.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to 30% depressed.
12 Aug -4 Normal
MUFS:
Equatorial PNG/Niue Region:
Near predicted monthly values with depressions to 30%
at Niue 19-23 UT. Some night spread F observed.
Northern Australian Region:
Near predicted monthly values with depressions to 25%
at Darwin 02-08 and 17-21 UT, to 30% at Cocos Is. 03-07
UT and to 30% at Townsville 00 and 23 UT. Night spread
F observed at Townsville.
Southern Australian and New Zealand Region:
Near predicted monthly values. At Christchurch depressions
to 25% were observed 06-08 and 11-13 UT and sporadic E
observed 01-18 UT. Night spread F observed at most stations.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted to 30% depressed.
Predicted Monthly T index for August: 2
2. FORECAST (13 AUGUST - 19 AUGUST)
MUFS: MUFs near predicted monthly values. Occasional depressions to 30%.
Propagation conditions: Normal. No SWFs.
T index: 0
3. OUTLOOK (20 AUGUST - 19 SEPTEMBER)
Degraded HF propagation conditions possible: 06 and 16 September.
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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