[Ips-dhfpr] IPS Daily HF Prop Report - 09 December 00

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 09/2330Z DECEMBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 DECEMBER) 
Date   T index  Conditions    
09 Dec    92    Fair-normal    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Depressed by 15-30% to near predicted monthly
      values during local day, enhanced by 15% during
      local night.
   Northern Australian Region:
      Depressed by 25% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Depressed up to 15% at times during local
      day, otherwise near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


Predicted Monthly T index for December: 130
2. FORECAST (10 DECEMBER - 12 DECEMBER)
Date   T index  Conditions       MUFs                              
10 Dec   110    Normal-Fair      near predicted monthly values/depressed 
                                 10 to 20% 
11 Dec   120    Normal           near predicted monthly values/depressed 
                                 5 to 15%     
12 Dec   130    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 82 was issued on 8 December 
and is current for interval 9-10 December. Coronal hole induced 
activity has produced significant depressions for Equatorial 
and northern Australian regions and mild depressions for southern 
Australian regions. Conditions should return to mostly normal 
over the next 24 hours. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060