[Ips-wsgr] IPS Weekly Solar and Geophysical Report (07 April 06)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 07 APRIL 2006, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (31 MARCH - 06 APRIL)
Date     31    01    02    03    04    05    06
10cm     86    87    91   100   100    99    99
AFr       2     1     1     1     4    18 ( 10)
Aaus      5     2     2     1     6    21 (  9)
T        25    21    21    18    27    47    25

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

31 Mar 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

01 Apr 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

02 Apr 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG/Niue Region:
      No data available during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

03 Apr 
Solar:        low
Geomagnetic:  Quiet 
Frequencies:  
near predicted monthly values

04 Apr 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
near predicted monthly values

05 Apr 
Solar:        low
Geomagnetic:  Quiet to Major Storm 
Frequencies:  
   Equatorial PNG/Niue Region:
     Near predicted monthly values during local day,
     Enhanced by 25% during local night.
     Enhanced by 20% after local dawn.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 40% during local night.
     Enhanced by 30% after local dawn.
  Southern Australian and New Zealand Region:
     Enhanced by 15% during local day,
     Enhanced by 20% during local night.
  Antarctic Region (Casey/Scott Base/Davis/Mawson):
     Near predicted monthly values over the UT day.

06 Apr 
Solar:        moderate, with an   M1.2 at 2042UT 
Geomagnetic:  Quiet to Active 
Frequencies:  
   Equatorial PNG/Niue Region:
     Near predicted monthly values.
  Northern Australian Region:
     Mostly near predicted monthly values,
  Southern Australian and New Zealand Region:
     Near predicted monthly values.
  Antarctic Region (Casey/Scott Base/Davis/Mawson):
     Near predicted monthly values over the UT day.


COMMENT: Moderate disturbance observed 05 April,
associated with southward interplanetary magnetic
field conditions. Origin of disturbance unclear.

 
2. FORECAST (07 APRIL - 13 APRIL)
Solar: Moderate activity early in week, then low.
Geomagnetic:  active on 9 Apr.
              quiet to unsettled on other days.

Frequencies:  briefly depressed after local dawn on 9 Apr
              MUFs near predicted monthly values on other days.

For an explanation of some of the terms in this report, goto
http://www.ips.gov.au/1/2/1.

IPS Radio and Space Services        email: asfc at ips.gov.au
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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