[Ips-wsgr] IPS Weekly Solar and Geophysical Report (02 March 12) issued 0201 UT on 02 Mar 2012

rwc rwc at ips.gov.au
Fri Mar 2 13:01:13 EST 2012


SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 02 MARCH 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (24 FEBRUARY - 01 MARCH)
Date     24    25    26    27    28    29    01
10cm    109   108   107   106   103   102   103
AFr       6     3     7    12    11     6 ( 12)
Aaus      6     7     7    18     8     6 ( 17)
T        79    96    83    70    61    72    76

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

24 Feb 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values 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/Davis/Mawson):
      Near predicted monthly values over the UT day.

25 Feb 
Solar:        Very low
Geomagnetic:  Quiet to unsettled
Frequencies:  
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 45% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      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.

26 Feb 
Solar:        Low
Geomagnetic:  Quiet to unsettled
Frequencies:  
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 15% 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/Davis/Mawson):
      Near predicted monthly values over the UT day.

27 Feb 
Solar:        Very low
Geomagnetic:  Quiet to unsettled until 12 UT. Active to minor 
              storm levels 12-21 UT, then settling to quiet conditions.
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with enhancements to 30%
      11-14, 18 and 22-23 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 30%
      08-14, 17 and 21-22 UT.
   Northern Australian Region:
      Mostly near predicted monthly values. Depressions to
      25% 19-23 UT.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Depressions at
      some stations to 20% 20-23 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Weak ionosphere due to polar cap absorption (proton enhancement).
      Near predicted monthly values.

28 Feb 
Solar:        Very low
Geomagnetic:  Mostly quiet. One period of unsettled to active 
              conditions 06-09 UT.
Frequencies:  
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values with occasional enhancements
      to 25% 04-13 UT.
   Northern Australian Region:
      Mostly near predicted monthly values. Depressions to 25% 00-02,
      06-09 UT at Townsville.
   Southern Australian and New Zealand Region:
      Eastern Australia region mostly depressed to 25% improving after
      local dawn. Western Australia region near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Weak ionosphere possibly due to absorption. Depressed mostly
      15-30%.

29 Feb 
Solar:        Very low
Geomagnetic:  Quiet to unsettled
Frequencies:  
   Cocos Island Region:
      Mostly near predicted monthly values. Depression to 25%
      at 23 UT.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 25% observed
      at Norfolk Is. 00-14 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% depressed.

01 Mar 
Solar:        Low
Geomagnetic:  Quiet to active. A weak (12nT) impulse was observed at
              0313UT in the IPS magnetometer data.
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with enhancements to 35%
      07-18 UT.
   Niue Island Region:
      No data.
   Northern Australian Region:
      Near predicted monthly values. Depressions to 20% at
      Darwin 18-21 UT.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Depressions to 20% from
      about 19 UT and at Norfolk Is. 03-06 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

2. FORECAST (02 MARCH - 08 MARCH)
Solar: Low. Possible moderate activity early in week.

Geomagnetic: Quiet to unsettled conditions. Active levels possibly
             beginning 4 Mar or 5 Mar.

Frequencies: Near predicted monthly values. Depressions to 25% possible
             2 and 5 Mar. Short wave fadeouts possible early in week.

For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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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