[Ips-wsgr] IPS Weekly Solar and Geophysical Report (13 February 09)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 13 FEBRUARY 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (06 FEBRUARY - 12 FEBRUARY)
Date     06    07    08    09    10    11    12
10cm     70    71    71    71    68    70    70
AFr       1     1     0     0     0     2   ( 3)
Aaus      2     5     2     3     3     4   ( 5)
T        -4   -13   -12   -11    -0    -4   -10

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

06 Feb 
Solar:        Very Low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values with periods of
      depressions.
   Northern Australian Region:
      Near predicted monthly values during local day with
      periods of depressions,
      Enhanced by 45% 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.

07 Feb 
Solar:        Very Low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 40% during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 30% during local day,
      Depressed by 15% 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.

08 Feb 
Solar:        Very Low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values to 45% depressed.
      Some night spread F observed at Niue.
   Northern Australian Region:
      Near predicted monthly values to 45% depressed.
      Sporadic E observed at Cocos Is. 06-10 and 19-21 UT
      and Townsville 14-21 UT.
   Southern Australian and New Zealand Region:
      Brisbane and Learmonth and Norfolk Is. MUFs were near
      predicted monthly values to 30% depressed; sporadic E
      observed at Brisbane and Norfolk Is. 15-21 UT. Higher
      latitude station MUFs were mostly near predicted monthly
      values with sporadic E observed 11-19 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values. Depressions to
      30% at Macquarie Is. 12-17 UT.

09 Feb 
Solar:        Very Low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 30% during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 30% during local day,
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

10 Feb 
Solar:        Very Low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue 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 and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

11 Feb 
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 30% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 20% during local night.
   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.

12 Feb 
Solar:        Very Low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values 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 (13 FEBRUARY - 19 FEBRUARY)
Solar: Very Low solar activity expected. No significantly
active returning regions expected.

Geomagnetic: Quiet to Unsettled conditions, with possible 
Active periods due to coronal hole effects 15Feb-16Feb.

Frequencies: MUFs depressions ranging from 10% to 30%
for low to mid latitudes. Near predicted monthly values for
high latitudes with possible disturbed periods due to 
increased geomagnetic activity.

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
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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