[Ips-wsgr] IPS Weekly Solar and Geophysical Report (27 January 12) issued 0321 UT on 27 Jan 2012

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 27 JANUARY 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (20 JANUARY - 26 JANUARY)
Date     20    21    22    23    24    25    26
10cm    141   142   141   144   136   126   128
AFr       3     6    22     7    13    17 (  6)
Aaus      4     9    27     9    18    12 (  7)
T        90    90    58    47    90    64    82

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

20 Jan 
Solar:        low
Geomagnetic:  Quiet 

Frequencies:  
   Niue Island Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

21 Jan 
Solar:        low
Geomagnetic:  Quiet to Unsettled 
A weak (10nT) impulse was observed in the IPS magnetometer data at
0503UT on 21 Jan.

Frequencies:  
   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.

22 Jan 
Solar:        low
Geomagnetic:  Quiet to Minor Storm 
A weak (29nT) impulse was observed in the IPS magnetometer data at
0612UT on 22 Jan.

Frequencies:  
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

23 Jan 
Solar:        high, with an  M8/2B at 0359UT 
Geomagnetic:  Quiet to Active 

Frequencies:  
   Cocos Island Region:
      No data.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day.
      Depressed by 20% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.
      Proton event in progress, increased absorption observed.

24 Jan 
Solar:        low
Geomagnetic:  Minor Storm 
A weak (38nT) impulse was observed in the IPS magnetometer data at
1504UT on 24 Jan.

Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values until 15UT,
      Depressed by 20% afterwards.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during until 15UT,
      Near predicted monthly values afterwards.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Proton event in progress, increased absorption observed.

25 Jan 
Solar:        very low
Geomagnetic:  Quiet to Active 

Frequencies:  
   Cocos Island Region:
      No data.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed by 15-30% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Proton event in progress, increased absorption observed.

26 Jan 
Solar:        low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Proton event in progress, increased absorption observed,
      otherwise mostly near predicted monthly values.

 
2. FORECAST (27 JANUARY - 02 FEBRUARY)
Solar: Low to Moderate.

Geomagnetic:  
Quiet to Unsettled with isolated Active levels possible at times.

Frequencies:  
MUFs near predicted monthly values to depressed up to 15% at times.

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
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