[Ips-wsgr] IPS Weekly Solar and Geophysical Report (15 July 11)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 15 JULY 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (08 JULY - 14 JULY)
Date     08    09    10    11    12    13    14
10cm     86    86    91    90    92    95    94
AFr       6    10     8    10     7     6 (  7)
Aaus      3     8     5    12     8     4 (  6)
T        28    33    39    42    35    44    41

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

08 Jul 
Solar:        low
Geomagnetic:  Quiet

Frequencies:  
08-Jul
Cocos Island Region:
  Depressed by 20% during local day,
  Depressed by 35% during local night.
  Depressed by 25% after local dawn.
Niue Island Region:
  Depressed by 20% during local day,
  Depressed by 20% during local night.
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,
  Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
  Depressed by 25% over the UT day.

09 Jul 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
09-Jul
Cocos Island Region:
  Near predicted monthly values during local day,
  Depressed by 30% during local night.
Niue Island Region:
  Depressed by 25% during local day,
  Depressed by 25% during local night.
Northern Australian Region:
  Depressed by 20% during local day,
  Depressed by 25% during local night.
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 30% over the UT day.

10 Jul 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Depressed by 25% during local day,
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 20%.
   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 30% over the UT day.

11 Jul 
Solar:        low
Geomagnetic:  Quiet to Active 
A weak (14nT) impulse was observed in the IPS magnetometer data at
0852UT on 11 Jul.
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values to Depressed by 25%,
      Depressed by 30% after local dawn.
   Niue Island Region:
      Depressed by 20%. 
   Northern Australian Region:
      Depressed by up to 30%. 
   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):
      Depressed by 25% over the UT day.

12 Jul 
Solar:        low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
   Niue Island Region:
      Depressed by 20%.
   Northern Australian Region:
      Depressed between 15-30%. 
   Southern Australian and New Zealand Region:
      Depressed by up to 20% during local day,
      Near monthly values during local night. 
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 30% over the UT day.

13 Jul 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Cocos Island Region:
      Near predicted monthly values to up to 30% depressed
      at times. 
   Niue Island Region:
      Depressed by 15% during local day,
      No data available during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% around local afternoon to dusk, 
      Near predicted monthly values at other times.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

14 Jul 
Solar:        very low
Geomagnetic:  Quiet to Unsettled, with an isolated Active period 

Frequencies:  
   Cocos Island Region:
      Depressed by up to 30%.
   Niue Island Region:
      Depressed by 25% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

 
2. FORECAST (15 JULY - 21 JULY)
Solar: 
Low

Geomagnetic: 
Quiet between 15-18
Unsettled to Active on 19-20 Jul.
Quiet to Unsettled on the 21

Frequencies:  
MUFs near predicted monthly values to depressed by 10-20%
Larger post dawn depressions possible on 19-20 July

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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