[Ips-wsgr] IPS Weekly Solar and Geophysical Report (27 August 10)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 27 AUGUST 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (20 AUGUST - 26 AUGUST)
Date     20    21    22    23    24    25    26
10cm     77    77    75    75    74    74    73
AFr       1     3     0     5    13    15 ( 12)
Aaus      3     3     1     4    15    13 ( 11)
T        25    23    17    18    33    26    23

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

20 Aug 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values to 20% depressed during local
      day. Depressed by 25% during local night.
   Niue Island Region:
      Near predicted monthly values during local day. Enhanced by
      25% during local night. Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day. Enhanced by
      15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

21 Aug 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day. Near
      predicted monthly values to 30% depressed during local night.
   Niue Island Region:
      Depressed by 15% during local day. Near predicted monthly
      values during local night.
   Northern Australian Region:
      Near predicted monthly values 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.

22 Aug 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values to 20% depressed during local
      day. Depressed by 25% during local night. Depressed by 25%
      after local dawn.
   Niue Island Region:
      Enhanced by 20% during local day. Enhanced by 40% during
      local night.
   Northern Australian Region:
      Near predicted monthly values to 15% depressed 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.

23 Aug 
Solar:        Very low
Geomagnetic:  Quiet to unsettled
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with depressions to 25% 08-10,
      13, 16-17 and 21-23 UT. Depressions to 45% 14-15 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 30% 01,
      07-18 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 30% at
      Darwin 05, 08-14 UT. Mostly 15-20% depressed at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 30% at times
      08-16 UT Brisbane, Canberra and Hobart. Night spread F
      observed at most stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

24 Aug 
Solar:        Very low
Geomagnetic:  Quiet to active with minor storm levels 06-09 UT 
              at high latitudes. 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with depressions to 30% 06-11,
      16-17 UT.
   Niue Island Region:
      Near predicted monthly values with occasional enhancements
      to 20%. Depressions to 30% 01-02, 11-14 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressions to 25% 03-08, 13,
      14, 17 and 21 UT at Darwin. 
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 25% enhanced.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressions to 20% 00-09 UT then near predicted monthly
      values to 25% enhanced.

25 Aug 
Solar:        Very low
Geomagnetic:  Quiet to active 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values 00-04 UT, then mostly
      depressed 15-30%.
   Niue Island Region:
      Near predicted monthly values with depressions to 25% 01,
      05, 10-12 and 22-23 UT. Night spread F observed.
   Northern Australian Region:
      Near predicted monthly values with night spread F.
      Depressions to 25% 05-06 and 08-11 UT at Darwin.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 15% enhanced with night
      spread F.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 30% depressed.

26 Aug 
Solar:        Very low
Geomagnetic:  Mostly quiet to unsettled. Isolated active levels 
              observed at higher latitudes. 
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values to 25% enhanced 00-04 UT,
      then 15-30% depressed.
   Niue Island Region:
      Near predicted monthly values to 30% enhanced 00-07 UT,
      then near predicted to 20% depressed. Night spread F
      observed.
   Northern Australian Region:
      Near predicted monthly values. Depressions to 25% 04-05
      and 21 UT at Darwin. Night spread F observed at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Night spread F observed at
      all stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 20% depressed. Macquarie
      Is riometer indicates absorption around 0315-0500 UT.

2. FORECAST (27 AUGUST - 02 SEPTEMBER)
Solar: Low.

Geomagnetic: Quiet to unsettled conditions.

Frequencies: Near predicted monthly values to 25% depressed.

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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