[Ips-wsgr] SWS Weekly Solar and Geophysical Report (22 March 19) issued 0123 UT on 22 Mar 2019 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 22 MARCH 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (15 MARCH - 21 MARCH)
Date     15    16    17    18    19    20    21
10cm     70    70    69    70    70    77    80
AFr       5     7    14     2     5     5  (  3)
Aaus      4    11     7     0     5     4  (  1)
T        -6    -3    -5    -4    -6    -4    -1

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

15 Mar 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

16 Mar 
Solar:        Very low
Geomagnetic:  Quiet to Active
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Depressed by 30% during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

17 Mar 
Solar:        Very low
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

18 Mar 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 45% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

19 Mar 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 55% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

20 Mar 
Solar:        Low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      No data available during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

21 Mar 
Solar:        Low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      No data available.     
   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.

 
2. FORECAST (22 MARCH - 28 MARCH)
Solar: 
Very Low to low. A small chance for isolated M-class flares on
22-24 March.

Geomagnetic:  
Quiet to Minor storm on 23 Mar. Unsettled to Active on 24 March.
Quiet to unsettled on other days.

Frequencies:  
Depressed 10 to 30% on 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.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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