[Ips-dhfpr] IPS Daily HF Prop Report - 11 April 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 11/2330Z APRIL 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 APRIL) 
Date   T index  Conditions    
11 Apr    81    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
     Enhanced by 15% during local day,
     Enhanced by 30% during local night.
  Northern Australian Region:
     Enhanced by 15% during local day,
     Near predicted monthly values during local night.
  Southern Australian and New Zealand Region:
     Near predicted monthly values.
  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 (12 APRIL - 14 APRIL)
Date   T index  Conditions       MUFs                              
12 Apr    60    Normal-Fair      depressed 15% after local dawn 
                                 then recovering 
13 Apr    60    Normal-Fair      Depressed 15% after local dawn, 
                                 then recovering     
14 Apr    60    Normal-Fair      Depressed 15% after local dawn, 
                                 then recovering    
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. 

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 
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