[Ips-wsgr] IPS Weekly Solar and Geophysical Report (04 May 05)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 04 MAY 2005, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (27 APRIL - 03 MAY)
Date     27    28    29    30    01    02    03
10cm     95    98   105   106   112   112   112
AFr       1     1     8    13    14     6    (8)
Aaus      1     1    10    14    15     7   (10)
T        29    28    39    52    54    39    41

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

27 Apr 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG Region:
      No data available during local day,
      Enhanced by 35% 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.

28 Apr 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG Region:
      No data available during local day,
      Enhanced by 55% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 20% over the UT day.

29 Apr 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     Enhanced by 30% during local night.
  Northern Australian Region:
     Depressed by 15% during local day,
     Depressed by 20% 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):
     Enhanced by 40% over the UT day.

30 Apr 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     No data available during local night.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 20% during local night.
  Southern Australian and New Zealand Region:
     Near predicted monthly values during local day,
     Enhanced by 30% during local night.
  Antarctic Region (Casey/Scott Base):
     Enhanced by 30% over the UT day.

01 May 
Solar:        very low
Geomagnetic:  Quiet to Active 

Frequencies:  
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      No data available during local night.
      Enhanced by 45% after local dawn.
   Northern Australian Region:
      Mostly 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.

02 May 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 30% 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.

03 May 
Solar:        low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG Region:
      Enhanced by 20% 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 during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

 
2. FORECAST (04 MAY - 10 MAY)
Solar: Low

Geomagnetic:  
4 - 8 May: Quiet to unsettled, with active periods possible on 5 May.
9 - 10 May: Quiet to active, with isolated minor storm periods possible,
due to recurrent coronal hole activity.

Frequencies:  mildly depressed after local dawn on 10-May,  otherwise MUFs near
normal. No SWFs.

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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