[Ips-wsgr] IPS Weekly Solar and Geophysical Report (23 November 07)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 23 NOVEMBER 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (16 NOVEMBER - 22 NOVEMBER)
Date     16    17    18    19    20    21    22
10cm     71    70    69    70    70    69    70
AFr       5     5     1     2    10     9 (  5)
Aaus      9     8     5     6    26    12 ( 14)
T       -25   -22   -39   -43   -27   -50   -50

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

16 Nov 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   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):
      Depressed by 15% during local day, 
      Near predicted monthly values during local night.

17 Nov 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
      Depressed by 40% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% over the UT day.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day. 

18 Nov 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 35% over the UT day. 
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 35% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day. 

19 Nov 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 50% during local night.
      Depressed by 40% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
      Depressed by 30% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day with 
      periods of depressions and degradations.

20 Nov 
Solar:        very low
Geomagnetic:  Unsettled with isolated Major Storm period. 
A weak (13nT) impulse was observed in the IPS magnetometer 
data at 0909UT on 20 Nov.
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 20% during local day,
      Depressed by 35% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night,
      Depressed by 30% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
      Depressed by 30% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

21 Nov 
Solar:        very low
Geomagnetic:  Quiet to Active 
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 45% during local day,
      Depressed by 45% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 45% during local day,
      Depressed by 35% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 40% during local day,
      Depressed by 40% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day with
      periods of depressions and degradations.

22 Nov 
Solar:        very low
Geomagnetic:  Quiet to Active 
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 25% during local day,
      Depressed by 45% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 40% during local day,
      Depressed by 35% during local night.
      Depressed by 30% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20 to 30% over the UT day with periods of
      degradations.

 
2. FORECAST (23 NOVEMBER - 29 NOVEMBER)
Solar: 
Very low. 

Geomagnetic:  
Quiet to unsettled conditions.

Frequencies:  
MUFs 15 to 40% below predicted monthly values on 
23 and 24 November, 10 to 20% below monthly predicted
values on 25 November and 5 to 10% below monthly 
predicted values during rest of the 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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