[Ips-wsgr] IPS Weekly Solar and Geophysical Report (18 July 08)

rwc rwc at ips.gov.au
Fri Jul 18 12:08:57 EST 2008


SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 18 JULY 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (11 JULY - 17 JULY)
Date     11    12    13    14    15    16    17
10cm     66    65    65    66    66    65    65
AFr       6    16    10     9     7     4 (  5)
Aaus      6    15    11     9     7     5 (  4)
T        -5     4     3     1     1    -2     4

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

11 Jul 
Solar:        Very low
Geomagnetic:  Quiet to unsettled 
Frequencies:  
   Equatorial PNG/Niue Region:
      Mostly 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):
      Enhanced by 90% over the UT day.

12 Jul 
Solar:        Very low
Geomagnetic:  Quiet to active 
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 25% during local day.
      Enhanced 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):
      Enhanced by 80% over the UT day.

13 Jul 
Solar:        Very low
Geomagnetic:  Quiet to active 
Frequencies:  
   Equatorial PNG/Niue 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 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 110% over the UT day.

14 Jul 
Solar:        Very low
Geomagnetic:  Mostly quiet to unsettled with some active periods. 
Frequencies:  
   Equatorial PNG/Niue 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):
      Periods of enhancements and depressions observed with
      minor to significant degradations. 

15 Jul 
Solar:        Very low
Geomagnetic:  Quiet to unsettled 

Frequencies:  
   Equatorial PNG/Niue 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):
      Periods of enhancements and minor to significant
      degradations. 

16 Jul 
Solar:        Very low
Geomagnetic:  Mostly quiet with some isolated unsettled periods. 
Frequencies:  
   Equatorial PNG/Niue Region:
      Mostly 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 with periods of minor to
      significant degradations.

17 Jul 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values. Depressions to 30% at
      Vanimo 03-07 and 11-15 UT. Some night spread F
      observed at Niue.
   Northern Australian Region:
      Near predicted monthly values. Some night spread F
      observed.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 30% at
      Hobart 08-09 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.
 
2. FORECAST (18 JULY - 24 JULY)
Solar: Low

Geomagnetic:  Quiet to unsettled conditions. Isolated active
periods possible on 22 and 23 July.

Frequencies:  
MUFs near predicted monthly values. Occasional depressions to
30% possible.

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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