[Ips-dhfpr] IPS Daily HF Prop Report - 10 April 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 10/2330Z APRIL 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 APRIL) 
Date   T index  Conditions    
10 Apr    90    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
 M2/1F 09/2329UT  possible   lower  West Pacific

MUFs:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Mostly near predicted monthly values,
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


PCA Event : No event.

Predicted Monthly T index for April:  77
2. FORECAST (11 APRIL - 13 APRIL)
Date   T index  Conditions       MUFs                              
11 Apr    80    Normal-Fair      depressed 10 to 15%/near predicted 
                                 monthly values 
12 Apr    80    Fair             depressed 10 to 20%/near predicted 
                                 monthly values     
13 Apr    80    Fair             Near predicted monthly values    
COMMENT: IPS HF Communications Warning 26 was issued on 8 April 
and is current for interval 11-12 April. A general period of 
mild to moderate degradation is expected for southern Aus/NZ 
region HF comms over the coming week. Low latitude (Norther Aus/Equatorial 
regions) are not expected to be impacted by coronal hole induced 
geomagnetic activity. Southern Aus/NZ region may expecerience 
local night degradation and brief depressions after local dawn. 
Christchurch and Hobart MUFs were depressed 15% after local dawn 
this morning. 

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