[Ips-whfpr] IPS Weekly Prop. Report (13 May 09)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 13/0200Z MAY 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 MAY - 12 MAY)
Date   T index   Conditions        
06 May    6      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Enhanced by 15% during local day,
      Enhanced by 15% during local night.
      Depressed by 20% after local dawn.
   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 over the UT day.

07 May   13      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
      Depressed by 25% after local dawn.
   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 over the UT day.

08 May   15      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Variable conditions during local night.
      Depressed by 20% after local dawn.
   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):
      Near predicted monthly values over the UT day.

09 May    9      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Variable conditions during local day,
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   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):
      Near predicted monthly values over the UT day.

10 May   13      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Variable conditions during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 45% 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 May    2      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values. No data for Niue.
   Northern Australian Region:
      Near predicted monthly values. Sporadic E at Darwin
      09-13 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Night spread F observed
      at most stations
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

12 May   10      Normal            
MUFS:
   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 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for May:   4
2. FORECAST (13 MAY - 19 MAY) 
MUFS: MUFs near predicted monthly values.
Propagation conditions: Normal. No SWFs
T index:   4

3. OUTLOOK (20 MAY - 19 JUNE)
Degraded HF propagation conditions possible:
No signficant degraded periods expected.

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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