[Ips-wsgr] IPS Weekly Solar and Geophysical Report (12 April 13) issued 0221 UT on 12 Apr 2013

rwc rwc at ips.gov.au
Fri Apr 12 12:21:18 EST 2013


SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 12 APRIL 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (05 APRIL - 11 APRIL)
Date     05    06    07    08    09    10    11
10cm    134   137   138   139   147   148   137
AFr       3     4     5     4     4     5 (  4)
Aaus      2     4     5     3     3     4 (  3)
T        98   110   106   100   103    94    98

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian region.
Frequencies:  Australian ionospheric F2 critical frequencies

05 Apr 
Solar:        moderate, with an M2.2 at 1750UT
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values 00-05 and 20 UT. Enhanced
      40-70% 08-17 UT and 20-30% at other times.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values. Enhanced 25-50% 10-23 UT at
      Darwin. Enhanced 15-25% 07-10, 14-19, 23 UT at Townsville.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Some enhancements to
      30%. Night spread F at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% enhanced. Depressions to
      25% 16-19 UT.

06 Apr 
Solar:        low
Geomagnetic:  Quiet.
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values 00-05 and 18-23 UT. Enhanced
      25-60% at other times.
   Niue Island Region:
      Near predicted monthly values to 20% enhanced. Enhanced 40%
      22-23 UT.
   Northern Australian Region:
      Enhanced 15-25% with enhancements of 40-65% 10-18 UT at Darwin.
      Near predicted monthly values with 20-25% enhancements 00-01,
      08-10 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 30% enhanced. Night spread F
      at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced to 30% during local day. Near predicted monthly values
      to 20% depressed during local night.

07 Apr 
Solar:        low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. Enhanced 15-30% 05-08,
      19 UT. Enhanced 40-70% 09-18 UT.
   Niue Island Region:
      Near predicted monthly values with enhancements 20-30%
      00-04, 06-07 and 22-23 UT. Depressions 15-20% 13-17 UT.
   Northern Australian Region:
      Near predicted monthly values. Enhancements 20-40% 09-13
      and 17-18 UT.
   Southern Australian and New Zealand Region:
      Mostly 10-30% above predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced to 30% during local day. Mostly near predicted
      monthly values during local night.

08 Apr 
Solar:        low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 80% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

09 Apr 
Solar:        low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 65% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

10 Apr 
Solar:        low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

11 Apr 
Solar:        high, with an M6.5 at 0716UT
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced by 15% during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

 
2. FORECAST (12 APRIL - 18 APRIL)
Solar: 
Low

Geomagnetic:  
Quiet to Major storm 13 Apr. Major storm then down to unsettled 14 Apr. Quiet to
unsettled on other days.

Frequencies:  
Minor to significant MUF depressions late on 13 Apr
depressed 30% on 14 Apr
MUFs near predicted monthly values on other days.


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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