[Ips-wsgr] IPS Weekly Solar and Geophysical Report (30 July 10)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 30 JULY 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (23 JULY - 29 JULY)
Date     23    24    25    26    27    28    29
10cm     86    85    85    84    83    83    85
AFr       6     4     5     5    11    10 (  8)
Aaus      7     4     6     4    13    11 (  8)
T        21    21    32    21    27    25    25

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

23 Jul 
Solar:        Very Low
Geomagnetic:  Quiet to Unsettled 

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

24 Jul 
Solar:        Very Low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Depressed by 15% during local day,
      Depressed by 25% during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Depressed by 20% 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 during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

25 Jul 
Solar:        Very Low
Geomagnetic:  Quiet 

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

26 Jul 
Solar:        Very Low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Depressed by 15% during local day,
      Depressed by 20% during local night.
   Niue Island 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.

27 Jul 
Solar:        Low
Geomagnetic:  Quiet to Unsettled 

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

28 Jul 
Solar:        Low
Geomagnetic:  Quiet to Unsettled 

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

29 Jul 
Solar:        Very Low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Cocos Island Region:
      Near predicted monthly values, enhanced 30% during
      local dusk.
      Depressed by 25% during local night.
   Niue Island 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.

 
2. FORECAST (30 JULY - 05 AUGUST)
Solar: Solar activity is expected to be Very Low to Low for the
forecast week with region 1092 having the potential for C-class
events as well as region 1089 before it rotates off disc in the
next 2 days.

Geomagnetic:  Quiet to Unsettled conditions expected. Unsettled periods
for 30Jul-01Aug due to recurrent coronal hole efftects, then mostly
Quiet for the remainder of the forecast period. 

Frequencies:  MUFs expected to be near predicted monthly values due to
adequate ionisation provided by current active regions and low 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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