[Ips-wsgr] IPS Weekly Solar and Geophysical Report (22 February 13) issued 0150 UT on 22 Feb 2013

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 22 FEBRUARY 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (15 FEBRUARY - 21 FEBRUARY)
Date     15    16    17    18    19    20    21
10cm    100   103   106   105   112   114   109
AFr       3     6     7     4     5     6  (  5)
Aaus      4     7     9     3     5     8  (  6)
T        69    78    68    40    63    55    59

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

15 Feb 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   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.

16 Feb 
Solar:        Very low
Geomagnetic:  Quiet to Unsettled
In the IPS magnetometer data for 16 Feb, a weak (13nT) impulse 
was observed at 1210UT.
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% 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.

17 Feb 
Solar:        Moderate, with an M1.9 at 1550UT
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

18 Feb 
Solar:        Low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      No data available during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Briefly enhanced to 30% 05-07UT.
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day.
      Depressed by 30% during local night.
      Recovering after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

19 Feb 
Solar:        Low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day 
      with mild depressions 03-05UT.
      Enhanced by 20% during local night.
   Niue Island Region:
      Mild depressions local day otherwise
      near predicted monthly values.
   Northern Australian Region:
      Darwin depressed 15% 03-06UT, enhanced 30% 15-16UT.
      Otherwise near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 30% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day
      with extended periods of weak ionosphere. 

20 Feb 
Solar:        Low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed 15% 00-04, 09-13UT. Enhanced to 15% 05-08UT.
   Northern Australian Region:
      Darwin, Learmonth moderately depressed, otherwise
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day
      with extended periods of weak ionosphere.

21 Feb 
Solar:        Low
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Darwin enhanced 30% 11-16UT, otherwise
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

 
2. FORECAST (22 FEBRUARY - 28 FEBRUARY)
Solar: 
Moderate activity early in week.

Geomagnetic:  
Quiet to unsettled conditions.

Frequencies:  
MUFs near predicted monthly values. Expect some variability at low latitudes.


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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