[Ips-wsgr] IPS Weekly Solar and Geophysical Report (26 August 05)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 26 AUGUST 2005, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 AUGUST - 25 AUGUST)
Date     19    20    21    22    23    24    25
10cm     93    98    99   157   112    99    92
AFr       6     2     5     7     7    72 ( 20)
Aaus      7     3     7     7     7    60 ( 17)
T        33    28    28    32    34    30    12

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian Region.
Frequencies:  Australian Ionospheric F2 critical frequencies

19 Aug 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG Region:
     Enhanced by 25% during local day,
     No data available 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):
     Near predicted monthly values over the UT day.

20 Aug 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     No data available during local night.
  Northern Australian Region:
     Depressed by 15% during local day,
     Depressed by 15% 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):
     Near predicted monthly values over the UT day.

21 Aug 
Solar:        low
Geomagnetic:  Quiet to Active 

Frequencies:  
near predicted monthly values

22 Aug 
Solar:        high, with an   M2.6 at 0135UT , and an   M5.6 at 1731UT
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
near predicted monthly values

23 Aug 
Solar:        moderate, with an   M2.7 at 1447UT 
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
near predicted monthly values

24 Aug 
Solar:        low
Geomagnetic:  Unsettled to severe storm. 

Frequencies:  
   Equatorial PNG Region:
      Enhanced by 30% during local day,
      No data available during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Proton event in progress, increased absorption observed.

25 Aug 
Solar:        high, with an   M6.4 at 0440UT 
Geomagnetic:  Quiet to Active 

Frequencies:  
about 25% below predicted monthly values

 
2. FORECAST (26 AUGUST - 01 SEPTEMBER)
Solar: 
Moderate activity early in week. AR800 and AR803 
may produce M class flares.

Geomagnetic:  
Active on 26 Aug, active on 1 Sep.
Quiet to unsettled on other days.

Frequencies:  
Briefly depressed after local dawn 26 Aug to 1 Sep.
MUFs near predicted monthly values on other days. 
Solar regions AR800 and 803 may possibly produce M 
class flares resulting in short-wave fadeouts.

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.


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