[Ips-whfpr] IPS Weekly Prop. Report (03 July 13) issued 0240 UT on 03 Jul 2013

Wed Jul 3 12:40:32 EST 2013

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED ON 03 JULY 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 JUNE - 02 JULY)
Date   T index   Conditions        
26 Jun   63      Fair-normal       
MUFS:
   Cocos Island Region:
      Enhanced 35-60% 06-11, 17-18 UT. Near predicted
      monthly values at other times.
   Niue Island Region:
      Near predicted monthly values. Depressions of
      15-30% 07-08, 17 and 20-21 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressed 20-40% at
      Darwin 10-18 UT and depressed 15-30% at Townsville
      09-13 UT. Occasional night spread F observed at both
      stations.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with 15-30% depressions
      at times 07-19 UT. Night spread F observed at most
      stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with depressions to 20%
      at times.

27 Jun   57      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Depressions of
      20-30% 14-16, 18-23 UT.
   Niue Island Region:
      Near predicted monthly values. Depressions of
      20-25% 12-13, 21-22 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressions of
      20-30% 03, 06, 10-14, 17 UT at Darwin.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions 20-35%
      at Hobart 09, 13-18 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values on a weak
      ionosphere.

28 Jun   72      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Depressed 25-35%
      18-19, 21 UT. Sporadic E 22-23 UT.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values to 30% enhanced,
      15-20% depressions 10-13 UT. Night spread F. No
      Townsville data.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Enhanced to 15%
      during local night. Hobart depressed 20-30% 16-18,
      21-23 UT. Night spread F observed at times, all stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% depressed.

29 Jun   87      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values to 25% enhanced.
      Depressions 25-35% 13-14, 16 UT.
   Niue Island Region:
      Near predicted monthly values 00-03 UT, then enhanced
      mostly 20-35%. Some night spread F.
   Northern Australian Region:
      Near predicted monthly values. Enhanced 20-35% 08-15,
      17, 23 UT at Darwin and 04-05, 11, 13-14, 16-17, 20 UT
      at Townsville. 
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 30% enhanced except at
      Hobart and Perth where frequencies were mostly 15-35%
      depressed. Hobart affected by spread F most of the period.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Weak ionosphere due to absorption. Sporadic E prevalent.

30 Jun   52      Poor-normal       
MUFS:
   Cocos Island Region:
      Enhanced 25-45% 04-12 UT. Depressed 20-30% 16-19 UT.
      Near predicted monthly values at other times.
   Niue Island Region:
      Near predicted monthly values with 20-30% depressions
      06-08, 11-14 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressions 25-35% 11-12,
      19-21 UT at Darwin. 
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values during local day
      except Hobart with depressions to 25%. Depressions to 35%
      during local night; depressions increasing with increasing
      latitude. Poor conditions 16-19 UT at Canberra, Hobart and
      Sydney. Perth frequencies were near predicted monthly values
      00-19 UT, then 25-40% depressed. Night spread F at all stations.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed 15-35% 00-10 UT then near predicted monthly values to
      30% enhanced. Weak ionosphere and blanketing sporadic E at times.

01 Jul   50      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day.
      Depressed by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

02 Jul   53      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Depressed by 15% during local night.
      Depressed by 30% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for July:  69

2. FORECAST (03 JULY - 09 JULY) 
MUFS: MUFs mostly near predicted monthly values. Periods of minor to mild MUF
depressions possible
on 4 and 5 July.

Propagation conditions: Normal to fair. SWFs possible.

T index: 60

3. OUTLOOK (10 JULY - 09 AUGUST)
Degraded HF propagation conditions possible:
20 Jul, 21 Jul, 25 Jul

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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