[Ips-dhfpr] IPS Daily HF Prop Report - 20 March 01

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SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 20/2330Z MARCH 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 MARCH) 
Date   T index  Conditions    
20 Mar    92    Normal-poor    

Flares    Max     Fadeout    Freq.  Sectors
 M1/0F    0333UT  possible   lower  E. Asia/Aust.
 M1/0F    0218UT  possible   lower  E. Asia/Aust.
 M1/1F    1507UT  possible   lower  South American/
                                    Atlantic
 M1/0F    1424UT  possible   lower  South American/
                                    Atlantic
 M1/--    2108UT  possible   lower  East Pacific

MUFs:
   Equatorial PNG Region:
      No data.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Enhanced by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day,
      Depressed by 25% during local night.
   Antarctic Region (Casey/Scott Base):
      Depressed by 20% over the UT day.


Predicted Monthly T index for March: 115
2. FORECAST (21 MARCH - 23 MARCH)
Date   T index  Conditions       MUFs                              
21 Mar   130    Normal-fair      depressed 10 to 15%/near predicted 
                                 monthly values 
22 Mar   110    Normal-fair      depressed 10 to 15%/near predicted 
                                 monthly values     
23 Mar   100    Normal-fair      depressed 10 to 15%/near predicted 
                                 monthly values    
COMMENT: Strongly degraded HF conditions observed overnight. 
Degradation impacted all latitudes. 
Spread F was observed local night hours on 20 Mar and at Darwin late 
in the UT day.  Periods of degraded HF conditions expected over next 
few days at mid to high latitudes, particularly on 23 Mar. 
Christchurch, Macquarie Island MUFs depressed 30% after local dawn 
this morning. Hobart, Canberra, Sydney MUFs near normal after 
local dawn this morning. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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