[Ips-wsgr] IPS Weekly Solar and Geophysical Report (14 December 07)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 14 DECEMBER 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (07 DECEMBER - 13 DECEMBER)
Date     07    08    09    10    11    12    13
10cm     82    87    89    87    93    94    94
AFr       0     1     1     5     9     7 (  5)
Aaus      3     2     6     9    15    10 (  7)
T       -25   -20   -20   -22    -6    -1     3

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian Region.
Frequencies:  Australian Ionospheric F2 critical frequencies

07 Dec 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 20% during local day,
      Depressed by 40% during local night.
      Depressed by 35% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   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.

08 Dec 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 20% 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.

09 Dec 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
      Depressed by 30% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 20% 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.

10 Dec 
Solar:        very low
Geomagnetic:  Quiet to Active 

Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

11 Dec 
Solar:        very low
Geomagnetic:  Unsettled 
A weak (18nT) impulse was observed in the IPS magnetometer data at
0609UT on 11 Dec.
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values,
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   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:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   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.

13 Dec 
Solar:        low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG/Niue Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   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.

 
2. FORECAST (14 DECEMBER - 20 DECEMBER)
Solar: 
Low

Geomagnetic:  
active 17 Dec to 19 Dec.
quiet to unsettled on other days.

Frequencies:  
briefly depressed after local dawn 17 to 19 Dec
MUFs near predicted monthly values on other days.

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

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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