[Ips-wsgr] IPS Weekly Solar and Geophysical Report (29 July 05)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 29 JULY 2005, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (22 JULY - 28 JULY)
Date     22    23    24    25    26    27    28
10cm     74    80    80    84    87    91    96
AFr       8     2     3     3     4    15   (16)
Aaus      8     3     3     2     3     8   (14)
T        19    17    20    23    38    43    52

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

22 Jul 
Solar:        Very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 20% 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,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values with periods
      of significant degradations. 

23 Jul 
Solar:        Very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day
      with periods of minor to significant degradations.

24 Jul 
Solar:        Very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 25% 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:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day 
      with periods of significant degradations on some
      stations. 

25 Jul 
Solar:        Very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 30% 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.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day
      with periods of depressions and degradations.

26 Jul 
Solar:        Very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day
      with periods of minor to significant degradations. 

27 Jul 
Solar:        Moderate, with an   M3.7 at 0505UT 
Geomagnetic:  Quiet to Active 

Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   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.

28 Jul 
Solar:        Moderate, with an   M1.0 at 0032UT , and an   M4.4 at 2158UT
Geomagnetic:  Quiet to Minor Storm 

Frequencies:  
   Equatorial PNG 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):
      Proton event in progress, increased absorption observed.

 
2. FORECAST (29 JULY - 04 AUGUST)
Solar: 
Moderate activity throughout the week

Geomagnetic:  
Quiet to unsettled conditions. Chance active periods early in week.
Chance CME-related shocks later in week. 

Frequencies:  
MUFs near predicted monthly values. Periods of degradation expected
mainly at high laitudes. 

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->
Gloassary on Solar Terrestrial Terms.


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