[Ips-wsgr] IPS Weekly Solar and Geophysical Report (20 September 13) issued 0355 UT on 20 Sep 2013

rwc rwc at ips.gov.au
Fri Sep 20 13:55:49 EST 2013


SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 20 SEPTEMBER 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (13 SEPTEMBER - 19 SEPTEMBER)
Date     13    14    15    16    17    18    19
10cm     92    93    93    95    99   104   108
AFr      10     6     3     6     8     6 ( 10)
Aaus      8     3     0     2     7     4 (  8)
T        74    62    60    61    66    65    74

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

13 Sep 
Solar:        very low
Geomagnetic:  Quiet to active
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. Depressed 20-35%
      15-19, 23 UT.
   Niue Island Region:
      Enhanced by 30-45% 00-10 UT. Depressed 20-35%
      13-17 UT. Mostly near predicted monthly values at
      other times.
   Northern Australian Region:
      Near predicted monthly values. Enhanced at Darwin
      25-35% 08-11, 15-16 UT, and 60-85% 12-14 UT. 
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Some night spread F
      at Hobart and Perth.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 20% depressed.

14 Sep 
Solar:        very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced 20-40% 07-13 UT. Depressed 20-30% 15-23
      UT. Near predicted monthly values at other times.
   Niue Island Region:
      Near predicted monthly values to 15% depressed.
      Depressed 35-50% 14-17 UT.
   Northern Australian Region:
      Near predicted monthly values to 15% depressed. Depressed
      to 20% 04-08 UT, 20-40% 14-18, 21 UT at Darwin.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Night spread F at Hobart
      and pre-dawn at Perth.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 30% depressed.

15 Sep 
Solar:        very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced 25-40% 08-13 UT. Depressed 20-25% 20-23
      UT. Near predicted monthly values at other times.
   Niue Island Region:
      Depressed 35-40% 12-17 UT. Near predicted monthly
      values at other times.
   Northern Australian Region:
      Depressed by 15-30% 06-08, 13-21, 23 UT at Darwin and
      04-06, 14-17, 23 UT at Townsville. Near predicted
      monthly values at other times.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 15% depressed. Night
      spread F at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

16 Sep 
Solar:        very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Depressed 5-35% for most of the day.
   Niue Island Region:
      Depressed 15-30% during 00-04, 12-17 and 20-22 UT.
      Near predicted monthly values at other times.
   Northern Australian Region:
      Conditions depressed 5-30% for most of the day.
   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 Sep 
Solar:        very low
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Enhanced by 15-50% during 06-14 UT.
      Depressed by up to 15% at other times.
   Niue Island Region:
      Depressed throughout most of the day.
      Depressed by 15-30% during 00-07 UT, 
      50% during 11-12 UT, and 15-30% during 13-17 UT.
   Northern Australian Region:
      Depressions of 5-15% throughout the UT day.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

18 Sep 
Solar:        low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Depressed by 10-30% during 01-07 UT and 10-23 UT.
      No day time enhancement. 
   Niue Island Region:
      Depressed by 10-30% during 00-06 UT and 12-18 UT.
      Enhanced by 5-20% during 08-11 UT.
   Northern Australian Region:
      Depressed by 5-30% for most of the day.
      Occasionally at predicted monthly values 
   Southern Australian and New Zealand Region:
      Depressed 5-10% for much of the day. 
      Slightly enhanced during 10-15 UT. 
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

19 Sep 
Solar:        low
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Enhanced 15-40% during 06-14 UT.
      Depressed 15-25% during 16-22 UT.
   Niue Island Region:
      Enhanced 15-40% during 00-10 UT.
      Otherwise near predicted monthly values.
   Northern Australian Region:
      Depressed 10-35% during 13-21 UT.
      Otherwise near predicted monthly values.
   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.

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

Geomagnetic:  
Quiet to unsettled conditions.

Frequencies:  
MUFs near predicted monthly values.


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
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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