[Ips-whfpr] IPS Weekly Prop. Report (11 July 12) issued 0156 UT on 11 Jul 2012

Wed Jul 11 11:56:28 EST 2012

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED ON 11 JULY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (04 JULY - 10 JULY)
Date   T index   Conditions        
04 Jul   63      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values to 30% enhanced
      01-13, 20 UT. Depressed 15-30% 00, 14-19, 21-23 UT.
   Niue Island Region:
      Mostly 15-25% depressed.
   Northern Australian Region:
      Near predicted monthly values with depressions to
      25% 06-07, 11, 15-18 UT at Darwin, and 01-07 UT at
      Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Night time
      depressions to 25%.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values with occasional
      depressions to 30%.

05 Jul   63      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values with 15-30%
      depressions 00, 12-20, 22-23 UT.
   Niue Island Region:
      Near predicted monthly values with 15-25%
      depressions 00-06, 13-15 UT.
   Northern Australian Region:
      Near predicted monthly values with 15-30%
      depressions 05-06, 11-18 UT at Darwin. Depressions
      of 15-20%, 00, 03-07, 12-16 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with depressions to
      20%, mostly 01-09, 14-17 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% depressed.

06 Jul   75      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Depressions 20-30%
      00, 13-20, 23 UT.
   Niue Island Region:
      Near predicted monthly values. Depressions 15-25%
       01-02, 13-14 UT.
   Northern Australian Region:
      Near predicted monthly values with 25-35% depressions
      10, 13-15, 17-19 UT at Darwin and 20-25% depressions
      08-09, 14 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with occasional
      depressions to 30%.

07 Jul   75      Fair-normal       
MUFS:
   Cocos Island Region:
      Enhanced 20-55% 03-12 UT. Depressed 20-30% 01,
      14-17, 22-23 UT. Near predicted monthly values at
      other times. Sporadic E 16-22 UT.
   Niue Island Region:
      Near predicted monthly values with 15-30% depressions
      10-15 UT.
   Northern Australian Region:
      Near predicted monthly values with 15-35% depressions
      00-02, 09-16, 19-21 UT at Darwin and 15-20%
      depressions 01-02, 09-12, 15, 23 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with 15-30% depressions
      11-14 UT at Perth and Learmonth.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

08 Jul   63      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      No data available during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      No data available during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      No data available during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      No data available during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

09 Jul   90      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 40% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 35% 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 15% during local night.
      Spread-F at Hobart local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Generally weak ionosphere over the UT day.

10 Jul   70      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      No data after 17UT.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

Predicted Monthly T index for July:  77

2. FORECAST (11 JULY - 17 JULY) 
MUFS: briefly depressed after local dawn on 15 Jul
MUFs near predicted monthly values on other days.

Propagation conditions: Fair on 15 Jul. Otherwise normal. SWFs probable early in
week.

T index: 77

3. OUTLOOK (18 JULY - 17 AUGUST)
Degraded HF propagation conditions possible:
23-26 Jul,  11 Aug

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
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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