[Ips-wsgr] SWS Weekly Solar and Geophysical Report (16 December 16) issued 0117 UT on 16 Dec 2016 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 16 DECEMBER 2016, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (09 DECEMBER - 15 DECEMBER)
Date     09    10    11    12    13    14    15
10cm     73    72    71    71    71    72    73
AFr      18    11    11     5     2     2  (  4)
Aaus     16     9    10     5     4     2  (  3)
T         5   -10    -9    -7   -19     1   -22

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

09 Dec 
Solar:        Very low
Geomagnetic:  Quiet to Active
Frequencies:  
   Cocos Island Region:
      Depressed by 40% during local day.
      Depressed by 15% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 40% during local night with periods of sporadic-E.
      Periods of equatorial spread-F local day.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Periods of equatorial spread-F. 
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Periods of strong sporadic-E after local dawn E Australian area
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values over the UT day.
      Periods of disturbance due to elevated geomagnetic activity. 

10 Dec 
Solar:        Low
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Depressed by 25% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 30% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

11 Dec 
Solar:        Very low
Geomagnetic:  Quiet to Unsettled
In the SWS magnetometer data for 11 Dec, a weak (9nT) impulse 
was observed at 0250UT.
Frequencies:  
   Cocos Island Region:
      Depressed by 15% during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      No data available during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

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

13 Dec 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Depressed by 15% during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

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

15 Dec 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

 
2. FORECAST (16 DECEMBER - 22 DECEMBER)
Solar: 
Very Low to Low

Geomagnetic:  
Active on 21-22 Dec.   Quiet to unsettled on other days.

Frequencies:
Depressed conditions are likely to continue throughout the 
Southern Hemisphere. Lowering the operating frequency to 
maintain contact may result in propagation via sporadic E 
layers when present.

Deeper depressions may occur during 21-23 Dec 
due to active geomagnetic conditions.

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 

IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information.  The views expressed in 
this message are those of the individual sender, unless 
specifically stated to be the views of SWS.  If you are not 
the intended recipient, please contact the sender immediately 
and delete all copies of this e-mail and attachments. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.sws.bom.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.sws.bom.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.sws.bom.gov.au/mailman/listinfo/ips-info.