[Ips-whfpr] IPS Weekly Prop. Report (06 August 08)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 06/0200Z AUGUST 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 JULY - 05 AUGUST)
Date   T index   Conditions        
30 Jul   12      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.

31 Jul    2      Normal            
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.

01 Aug    7      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 during local day.
      Enhanced by 10-30% during local night when trace
      is present but is usually very weak.

02 Aug    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.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

03 Aug   -1      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day.
      Variable conditions during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values 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):
      Enhanced by 20% over the UT day.

04 Aug   -2      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Vanimo frequencies were near predicted 00-06, 21 UT;
      depressed to 45% 07-15 UT. Blanketing sporadic E
      observed 17-20 UT. Frequencies were mostly near
      predicted at Niue with depressions to 30% 01-02, 04-05
      and 21-22 UT.
   Northern Australian Region:
      Near predicted to 30% depressed 00-10 UT, then near
      predicted monthly values. Some night spread F
      observed.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Enhancements to
      45% observed at some stations 08-21 UT. Night spread F
      observed at some stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted to 30% depressed.

05 Aug   -8      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values with occasional
      depressions to 25% observed at Niue. Depressions to
      45% observed at Vanimo 07-14 UT. Night spread F
      observed at Niue and sporadic E observed at Vanimo
      12-18 UT.
   Northern Australian Region:
      Near predicted monthly values with occasional
      depressions to 30%. Night spread F observed.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

Predicted Monthly T index for August:   2

2. FORECAST (06 AUGUST - 12 AUGUST) 
MUFS: Near predicted monthly values. Occasional depressions
      to 30% possible.
Propagation conditions: Normal. No SWFs
T index:    0

3. OUTLOOK (13 AUGUST - 12 SEPTEMBER)
Degraded HF propagation conditions possible: 05 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
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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