[Ips-wsgr] IPS Weekly Solar and Geophysical Report (26 March 10)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 26 MARCH 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 MARCH - 25 MARCH)
Date     19    20    21    22    23    24    25
10cm     84    84    85    82    84    84    88
AFr       2     5     0     0     0     2 (  5)
Aaus      4     6     3     1     2     5 (  8)
T        46    49    38    36    40    36    47

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

19 Mar 
Solar:        Very low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Enhanced by 40% during local day.
      Enhanced by 35% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 50% during local night.
      Enhanced by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
      Enhanced by 30% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

20 Mar 
Solar:        Very low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Enhanced by 35-45%.
   Niue Island Region:
      Enhanced by 20-25%.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 40% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day.
      Enhanced by 55% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

21 Mar 
Solar:        Very low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Enhanced by 15-25%.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 20-25%.
   Southern Australian and New Zealand Region:
      Enhanced by 20-40%.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

22 Mar 
Solar:        Very low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with enhancements to 20%
      04-05 and 11-16 UT.
   Niue Island Region:
      Near predicted monthly values to 30% enhanced.
      Depressions to 20% 01-02 UT.
   Northern Australian Region:
      Near predicted monthly values to 40% enhanced. Spread
      F observed at Darwin 16-19 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 40% enhanced.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 40% enhanced.

23 Mar 
Solar:        Very low
Geomagnetic:  Quiet with some unsettled periods at high latitudes. 

Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with enhancements to 30%
      07-14 UT.
   Niue Island Region:
      Near predicted monthly values with enhancements to 40%
      00-05 and 20-23 UT.
   Northern Australian Region:
      Near predicted monthly values to 30% enhanced. Enhancements
      to 40% 10-20 UT at Darwin and 19-21 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 35% enhanced.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 35% enhanced.

24 Mar 
Solar:        Very low
Geomagnetic:  Quiet to unsettled 

Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with enhancements to 60%
      09-16 UT.
   Niue Island Region:
      Near predicted monthly values with enhancements to 60%
      00-06 UT.
   Northern Australian Region:
      Near predicted monthly values with enhancements to 40%
      11-18 UT at Darwin and 01-05, 10-17 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 30% enhanced.
      Night spread F observed at some stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 30% enhanced.

25 Mar 
Solar:        Very low
Geomagnetic:  Quiet to unsettled 

Frequencies:  
   Cocos Island Region:
      Near predicted monthly values to enhanced. Enhanced to
      to 50% 04-16 UT.
   Niue Island Region:
      Near predicted monthly values to 30% enhanced.
   Northern Australian Region:
      Mostly near predicted monthly values to 40% enhanced.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 30% enhanced.
      Enhanced to 40% 17 to 20 UT. Night spread F observed
      at Christchurch and Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values to 30% enhanced.

 
2. FORECAST (26 MARCH - 01 APRIL)
Solar: Low

Geomagnetic: Quiet to unsettled conditions. Isolated active
             periods at high latitudes possible on 28, 29
             March.

Frequencies: Near predicted monthly values to 30% enhanced.
             Depressions possible on 26 and 29 March.

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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