[Ips-wsgr] IPS Weekly Solar and Geophysical Report (31 July 15) issued 0311 UT on 31 Jul 2015

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 31 JULY 2015, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (24 JULY - 30 JULY)
Date     24    25    26    27    28    29    30
10cm     92    94    97   100   101   101   102
AFr       6     9     9    13     9     7 (  9)
Aaus      5     4     4     7     7     2 (  5)
T        44    43    49    55    50    50    49

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

24 Jul 
Solar:        low
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 25% during local day and
      after local dawn.
      Depressed by 40% during local night.
   Northern Australian Region:
      Depressed by 25% during local day and 
      after local dawn.
      Depressed by 40% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day and 
      after local dawn.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Extended periods of disturbance over the UT day.

25 Jul 
Solar:        very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      No data available..
   Niue Island Region:
      Depressed by 25% during local day 
      and after local dawn.
      Depressed by 35% during local night.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 35% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Extended periods of disturbance.

26 Jul 
Solar:        low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 20% during local day
      and after local dawn..
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 25% during local day
      and after local dawn.
      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):
      Near predicted monthly values over the UT day.

27 Jul 
Solar:        very low
Geomagnetic:  Mostly Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 20% 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):
      Enhanced by 20% over the UT day.

28 Jul 
Solar:        very low
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 35% 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 15% during local day.
      Near predicted monthly values 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
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Depressed by 30% during local day.
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

30 Jul 
Solar:        very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

 
2. FORECAST (31 JULY - 06 AUGUST)
Solar: Very low

Geomagnetic:  
Active on 31 Jul to 1 Aug with possibility of minor storms during this period.
Quiet to unsettled on other days.

Frequencies:  
Due to expected low levels of ionising radiation, MUFs are expected to show
minor to mild degradations 
throughout this period. Between 31 Jul to 1 Aug, relatively stronger 
degradation of MUFs are expected 
due to likely rise in geomagnetic activity levels on these days.


For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at ips.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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