[Ips-wsgr] IPS Weekly Solar and Geophysical Report (01 April 11)

rwc rwc at ips.gov.au
Fri Apr 1 12:57:00 EST 2011


SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 01 APRIL 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (25 MARCH - 31 MARCH)
Date     25    26    27    28    29    30    31
10cm    113   115   117   119   116   118   113
AFr       2     1     2     2     2     4 (  3)
Aaus      3     1     2     2     2     6 (  3)
T        61    64    64    75    77    83    90

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian region.
Frequencies:  Australian ionospheric F2 critical frequencies

25 Mar 
Solar:        moderate, with an   M1.0 at 2322UT 
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Enhanced by 25% during local day,
      Enhanced by 40% during local night.
   Niue Island Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
      Enhanced by 35% after local dawn.
   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):
      Near predicted monthly values over the UT day.

26 Mar 
Solar:        moderate, with an   M1.0 at 2322UT 
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Enhanced by 45% during local day,
      Enhanced by 35% during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 60% during local night.
   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.

27 Mar 
Solar:        low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Enhanced by 35% during local day,
      Enhanced by 25% during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Enhanced by 40% 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:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

28 Mar 
Solar:        low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Enhanced between 05-16UT by 50%,
      Near monthly values at other times.
   Niue Island Region:
      Enhanced by 30% before 12UT, 
      Near monthly values at other times.
   Northern Australian Region:
      Enhanced by 30% between 10-19UT,
      Near predicted monthly values at other times.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day,
      Enhanced by 35% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30%.

29 Mar 
Solar:        low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Enhanced to 50% from 05-22UT.
      Near predicted monthly values at other times.
   Niue Island Region:
      Enhanced by 25% from 08-11UT.
      Enhanced by 20% from 17-18UT.
      Near predicted monthly values at other times.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 40% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 40% from 07-21UT.
      Near predicted monthly values at other times.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced to 70% during the UT day.

30 Mar 
Solar:        low
Geomagnetic:  Quiet to Active 

Frequencies:  
  
  Cocos Island Region:
      Near predicted monthly values from 00UT to 05UT and
      21UT.
      Enhanced by 50% at other times.
   Niue Island Region:
   Near predicted to 25% enhanced.  
   Northern Australian Region:
      Mostly near predicted to enhanced about 50%. 
   Southern Australian and New Zealand Region:
      Near predicted to 35% enhanced. 
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 35% enhanced.

31 Mar 
Solar:        low
Geomagnetic:  Quiet 

Frequencies:  
about 25% above predicted monthly values

 
2. FORECAST (01 APRIL - 07 APRIL)
Solar: 
Low flare activity expected, with possible isolated M-class events.

Geomagnetic:  
Quiet conditions expected with possible Unsettled conditions on April 3 
due to coronal hole effects.

Frequencies:  
MUFs near predicted monthly values to 30% enhanced.

For an explanation of some of the terms in this report, go to
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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