[Ips-whfpr] IPS Weekly Prop. Report (14 July 10)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 14/0200Z JULY 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (07 JULY - 13 JULY)
Date   T index   Conditions        
07 Jul   11      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values to depressed by 25%
      during local day. Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 25% to near monthly predicted values
      during local day. Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 20% to 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.

08 Jul    5      Fair-normal       
MUFS:
   Cocos Island Region:
      Depressed by 25% during local day to near predicted
      monthly values. Depressed by 25% during local night.
   Niue Island Region:
      Depressed by 20% during local day to near predicted
      monthly values. Depressed by 15% during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day to near predicted
      monthly values. Depressed by 15% 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.

09 Jul   24      Fair-normal       
MUFS:
   Cocos Island Region:
      Depressed by 20% during local day to near predicted
      monthly values.  Depressed by 15% during local night.
   Niue Island Region:
      Depressed by 20% during local day to near predicted
      monthly values. Near predicted monthly values during
      local night.
   Northern Australian Region:
      Depressed by 15% during local day to near predicted
      monthly values. Near predicted monthly values during
      local night.
   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.

10 Jul   19      Normal-fair       
MUFS:
   Cocos Island Region:
      Depressed by 15% to near predicted monthly values
      during local day. Near predicted monthly values during
      local night.
   Niue Island Region:
      Mostly near predicted monthly values. Depressed by 20%
      after local dawn.
   Northern Australian Region:
      Depressed by 15% to near predicted monthly values
      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 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

11 Jul   11      Normal            
MUFS:
   Cocos Island Region:
      Depressed by 15% to near predicted monthly values
      during local day. Near predicted monthly values.
   Niue Island Region:
      Depressed by 15% to near predicted monthly values
      during local day. Depressed by 20% during local
      night.
   Northern Australian Region:
      Near predicted monthly values.
   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.

12 Jul    9      Fair-normal       
MUFS:
   Cocos Island Region:
      Mostly 15-30% depressed. Sporadic E observed 15-20
      UT.
   Niue Island Region:
      Near predicted monthly values to 25% depressed.
   Northern Australian Region:
      Near predicted monthly values to 30% depressed.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values to 20%
      depressed. Night spread F observed at all stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% depressed.

13 Jul   10      Fair-normal       
MUFS:
   Cocos Island Region:
      Mostly 15-30% depressed.
   Niue Island Region:
      Mostly 15-30% depressed.
   Northern Australian Region:
      Near predicted monthly values to 25% depressed. Night
      spread F observed.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values; occasional
      depressions to 30%. Night spread F observed.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% depressed.

Predicted Monthly T index for July:  27

2. FORECAST (14 JULY - 20 JULY) 
MUFS: No recurrent solar activity likely to affect MUFs. If
  background solar flux levels remain low, expect MUFs near
  predicted monthly values to 30% depressed.
Propagation conditions: Fair to normal. No SWFs
T index:  10

3. OUTLOOK (21 JULY - 20 AUGUST)
Degraded HF propagation conditions possible:
23 to 24 July, 28 to 31 July, 19 August.

PLEASE NOTE:
Space weather conditions can frequently be determined by short 
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.

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.


IPS Radio and Space Services        email: asfc at ips.gov.au
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