[Ips-whfpr] IPS Weekly Prop. Report (04 July 07)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 04/0200Z JULY 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (27 JUNE - 03 JULY)
Date   T index   Conditions        
27 Jun    4      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values. Sporadic E observed at
      Port Moresby 09-13 UT. Depressions to 30% observed at
      Vanimo 00-09 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 20%
      observed at Darwin and Learmonth 00-06 UT. Night
      spread F observed.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with night spread F.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with spread F day and
      night.

28 Jun    7      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values. Night spread F observed.
   Northern Australian Region:
      Near predicted monthly values. Darwin near predicted
      values to 20% depressed 00-07 UT. Night spread F observed.
   Northern Australian Region:
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Night spread F observed.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values. Daytime spread F and
      night sporadic E observed at Casey.

29 Jun   12      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 15% 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 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

30 Jun   16      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

01 Jul    6      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Depressed by 25% after local dawn.
   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 over the UT day.

02 Jul   14      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 15% 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):
      Near predicted monthly values over the UT day.

03 Jul    6      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Depressed by 20% during local day,
      Near predicted monthly values 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):
      Mostly near predicted monthly values, with localised
      periods of disturbance.

Predicted Monthly T index for July:  10
2. FORECAST (04 JULY - 10 JULY) 
MUFS: MUFs near predicted monthly values.
Propagation conditions: Normal. No SWFs
T index:   10

3. OUTLOOK (11 JULY - 10 AUGUST)
Degraded HF propagation conditions possible:
17-Jul to 19-Jul,07-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
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