[Ips-wsgr] IPS Weekly Solar and Geophysical Report (20 March 15) issued 0146 UT on 20 Mar 2015

rwc rwc at ips.gov.au
Fri Mar 20 12:46:45 EST 2015


SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 20 MARCH 2015, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (13 MARCH - 19 MARCH)
Date     13    14    15    16    17    18    19
10cm    119   116   114   117   114   115   109
AFr       5     5     7     9    46    32 ( 22)
Aaus      5     3     5    12    56    28 ( 19)
T        99    96   101   101    84    25    91

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

13 Mar 
Solar:        moderate, with an M1.2 at 0404UT, and an M1.8 at 
              0608UT
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 50% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

14 Mar 
Solar:        moderate, with an M1.4 at 0440UT
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced by 40% during local day.
      Enhanced by 65% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

15 Mar 
Solar:        moderate, with an M1.2 at 2324UT
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

16 Mar 
Solar:        moderate, with an M1.2 at 2324UT, and an M1.6 at 
              1104UT
Geomagnetic:  Unsettled to Active
Frequencies:  
   Cocos Island Region:
      Enhanced by 20% during local day.
      No data available during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

17 Mar 
Solar:        moderate, with an M1.0 at 2336UT
Geomagnetic:  Quiet to Major Storm
In the IPS magnetometer data for 17 Mar, a weak (43nT) impulse 
was observed at 0445UT.
Frequencies:  
   Cocos Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Depressed by 35% after local dawn.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 40% after local dawn.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 50% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

18 Mar 
Solar:        moderate, with an M1.0 at 2336UT
Geomagnetic:  Unsettled to Minor Storm
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 50% during local day.
      Depressed by 35% during local night.
      Depressed by 25% after local dawn.
   Southern Australian Region:
      Depressed by 50% during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.

19 Mar 
Solar:        low
Geomagnetic:  Quiet to Minor Storm
Frequencies:  
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

 
2. FORECAST (20 MARCH - 26 MARCH)
Solar: 
Low

Geomagnetic:  
Active on 20 Mar,  22-24 Mar.   Quiet to unsettled on other days.

Frequencies:  
briefly depressed after local dawn on 20 Mar,
possible mild depressions 23-25 Mar,
MUFs near predicted monthly values on other days.


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.

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