[Ips-wsgr] IPS Weekly Solar and Geophysical Report (17 December 10)

Fri Dec 17 13:14:17 EST 2010

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 17 DECEMBER 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (10 DECEMBER - 16 DECEMBER)
Date     10    11    12    13    14    15    16
10cm     88    87    89    88    90    87    84
AFr       0     1     3     5    10     8 (  5)
Aaus      5     5     7    10    14     7 (  6)
T        20    18    20    27    27    11    19

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

10 Dec 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. Depressions to 30% 17-22 UT.
   Niue Island Region:
      Near predicted monthly values during local day. Depressions
      to 35% 05-20 UT.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Variable conditions during local night.
   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.

11 Dec 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values with depressions to 30% 18-21 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 25% 00-02,
      23 UT.
   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.

12 Dec 
Solar:        Very low
Geomagnetic:  Quiet to unsettled 
Frequencies:  
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

13 Dec 
Solar:        Very low
Geomagnetic:  Quiet to unsettled. Active to minor storm levels 
              at high latitudes. 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Enhanced by 35% 00-05 UT. No data 06-23 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 30% 00-01,
      19-23 UT at Darwin and 23 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Occasional depressions to 20%.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with depressions to 20% at times.

14 Dec 
Solar:        Low
Geomagnetic:  Quiet to active 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. No data 16-22 UT.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressions to 30% 00-03 and 20-22 UT. Enhancements to 25%
      11-18 UT and near predicted monthly values at other times at
      Darwin. Near predicted monthly values at Townsville with
      enhancments to 25% 05-08 and 18-19 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 25% observed
      after 17 UT at most stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 20% depressed.

15 Dec 
Solar:        Low
Geomagnetic:  Quiet to unsettled. Active to minor storm levels 
              at high latitudes. 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. Depressions to 20% 16-17,
      22-23 UT.
   Niue Island Region:
      Near predicted monthly values. Depressions to 25% 05-07,
      23 UT.
   Northern Australian Region:
      Near predicted monthly values. Night spread F observed
      at Townsville.
   Southern Australian and New Zealand Region:
      Mostly 10-25% depressed, except at Norfolk Is. and Perth
      where MUFs were mostly near predicted monthly values with
      depressions to 20% 03-06, 15 UT at Norfolk Is. and 17-21 UT
      at Perth. Sporadic E blanketed most of the time 14-20 UT
      at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with depressions to 25%
      observed mostly 00-03, 08-14 UT.

16 Dec 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values with depressions to 25%
      01-06 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 20%
      03-04, 23 UT at Townsville and 21-23 UT at Darwin.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 20%, 00-06 UT
      at Brisbane, Norfolk Is. and Perth. Depressions to 30%
      15-20 UT at Norfolk Is.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

2. FORECAST (17 DECEMBER - 23 DECEMBER)
Solar: Very low to low

Geomagnetic: Quiet to unsettled conditions.

Frequencies: Near predicted monthly values. Occasional depressions
    to 20%.

For an explanation of some of the terms in this report, go to
http://www.ips.gov.au/1/2/1.

IPS Radio and Space Services        email: asfc at ips.gov.au
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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