[Ips-wsgr] IPS Weekly Solar and Geophysical Report (26 March 04)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 26 MARCH 2004, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 MARCH - 25 MARCH)
Date     19    20    21    22    23    24    25
10cm    112   114   111   116   118   120   127
AFr       5     7     9     8     5     1 (  7)
Aaus      5     6    11    10     5     2 (  4)
T        67    74    76    66    82    80    97

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

19 Mar 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 35% 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):
      Depressed by 10% during local day,
      Near predicted monthly values during local night.


20 Mar 
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:
      Enhanced by 20% over the UT day.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Generally above predicted monthly values,
      with variable local disturbances.


21 Mar 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 40% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
      Enhanced by 45% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


22 Mar 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night, and after
      local dawn.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   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.


23 Mar 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 40% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 10-20% over the UT day.


24 Mar 
Solar:        moderate, with an M1/SF at 2329UT
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Mostly normal to enhanced.


25 Mar 
Solar:        moderate, with an  M2/SF at 0439UT
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced greater than 30% during local night.
      Enhanced by 30% after local dawn.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced greater than 30% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day,
      Enhanced by 35% during local night.
   Antarctic Region (Casey/Scott Base):
      Mostly normal to enhanced.


 
2. FORECAST (26 MARCH - 01 APRIL)
Solar: Low to moderate.

Geomagnetic: Mostly quiet to unsettled with active intervals possible.
Isolated minor storm periods possible 26-28 March.

Frequencies: MUFs near predicted monthly values to enhanced, with
slight depressions possible early in the week.
SWFs possible early in week.

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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