[Ips-wsgr] IPS Weekly Solar and Geophysical Report (09 April 04)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 09 APRIL 2004, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (02 APRIL - 08 APRIL)
Date     02    03    04    05    06    07    08
10cm    108   107   109   109   101    98    94
AFr       3    21    12     9    17     7   (22)
Aaus      2    25    11    13    17     7   (14)
T        62    64    48    58    40    60    80

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

02 Apr 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Enhanced by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Enhanced by up to 35% with periods of depressions
      and degradations. 


03 Apr 
Solar:        Very low
Geomagnetic:  Quiet to Minor Storm 
              A weak (27nT) impulse was observed in the IPS 
	      magnetomter data at 1410UT on 03 Apr.
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day,
      Enhanced by 15% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 20% over the UT day with periods
      of depressions and degradations. 


04 Apr 
Solar:        Very low
Geomagnetic:  Quiet to active, with periods of minor storm. 
Frequencies:  
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Data available only from one station. Depressions
      were observed in this data.


05 Apr 
Solar:        Moderate, with an M1/1F at 0555UT
Geomagnetic:  Quiet to active, with periods of minor storm. 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
      Enhanced by 30% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 15% over the UT day
      with periods of minor to substantial depressions
      and degradation.


06 Apr 
Solar:        Moderate, with an M2/SF at 1328UT
Geomagnetic:  Quiet to Active 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced by 25% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day with
      periods of depressions and strong degradations. 


07 Apr 
Solar:        Very low
Geomagnetic:  Quiet to Unsettled 
Frequencies:  
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 45% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day, 
      with variable local disturbances.


08 Apr 
Solar:        Low
Geomagnetic:  Quiet to Active 
Frequencies:  
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 35% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Enhanced by 20-25% over the UT day.
   Antarctic Region (Casey/Scott Base):
      Mostly near predicted monthly values with
      isolated local disturbances.


 
2. FORECAST (09 APRIL - 15 APRIL)
Solar: Low

Geomagnetic:  Mostly Quiet to Unsettled with active intervals possible.

Frequencies:  Possible depressions of 15 to 20% on 11-12 Apr,
              depressed 15% briefly after local dawn on 13-Apr,
              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.

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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