[Ips-wsgr] IPS Weekly Solar and Geophysical Report (13 April 12) issued 0415 UT on 13 Apr 2012
rwc
rwc at ips.gov.au
Fri Apr 13 14:15:53 EST 2012
SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 13 APRIL 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (06 APRIL - 12 APRIL)
Date 06 07 08 09 10 11 12
10cm 97 99 93 95 93 93 95
AFr 3 3 4 7 6 5 ( 9)
Aaus 2 8 3 2 4 5 ( 12)
T 81 80 65 59 70 74 69
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
06 Apr
Solar: low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Enhanced by 45% during local day.
Near predicted monthly values during local night.
Niue Island Region:
No data available.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
07 Apr
Solar: low
Geomagnetic: Quiet to Active
Frequencies:
Cocos Island Region:
Enhanced by 30% during local day.
Depressed by 20% during local night.
Niue Island Region:
No data available during the UT day.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
08 Apr
Solar: very low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 20% during local night.
Niue Island Region:
Enhanced by 15% during local day.
Depressed by 25% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 40% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day.
Depressed by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
09 Apr
Solar: low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Depressed by 30% after local dawn.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 30% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 35% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
10 Apr
Solar: very low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Enhanced by 25% during local day.
Depressed by 15% during local night.
Depressed by 20% after local dawn.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 25% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 25% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
11 Apr
Solar: very low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Enhanced by 30% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 25% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
12 Apr
Solar: very low
Geomagnetic: Quiet to Unsettled with Isolated Active Periods
Frequencies:
Cocos Island Region:
Enhanced by 20% during local day.
Depressed by 15% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 25% 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:
Mostly near predicted monthly values.
Depressed by 25% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
2. FORECAST (13 APRIL - 19 APRIL)
Solar:
Very Low
Geomagnetic:
Mostly Quiet to Unsettled conditions. Active periods possible on 13 and 14 April
Frequencies:
MUFs mostly near predicted monthly values. Minor to moderate depressions
possible on
13 and 14 April, especially at mid and high latitude locations.
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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