[Ips-wsgr] IPS Weekly Solar and Geophysical Report (08 April 11)
rwc
rwc at ips.gov.au
Fri Apr 8 14:04:02 EST 2011
SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 08 APRIL 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (01 APRIL - 07 APRIL)
Date 01 02 03 04 05 06 07
10cm 109 108 114 113 109 117 112
AFr 9 13 11 6 4 16 ( 5)
Aaus 9 11 12 5 4 19 ( 2)
T 86 89 94 94 83 103 84
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
01 Apr
Solar: low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Near predicted monthly values 00-07, 18-20 UT,
enhanced to 40% at other times.
Niue Island Region:
Near predicted monthly values 00-03, 19-20 UT,
enhanced to 40% at other times.
Northern Australian Region:
Near predicted monthly values 00-07, 18-21 UT,
enhanced to 35% at other times
Southern Australian and New Zealand Region:
Near predicted monthly values 00-07 UT at all stations
except Perth and 20-22 UT Canberra and Sydney. Enhanced
to 35% at other times.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced to 35% at Macquarie Is and Mawson. Near
predicted monthly values to 30% depressed at Casey and
Scott Base.
02 Apr
Solar: very low
Geomagnetic: Quiet to unsettled with isolated active periods
at higher latitudes.
Frequencies:
Cocos Island Region:
Near predicted monthly values to 25% enhanced.
Enhanced to 35% 20-22 UT.
Niue Island Region:
Near predicted monthly values with enhancements to 35%
01-11 and 16-19 UT.
Northern Australian Region:
Near predicted monthly values with enhancements to 30%
05-15 and 19-23 UT.
Southern Australian and New Zealand Region:
Enhanced to 35% apart from near predicted monthly
values at Hobart and Perth 00-07 and 15-20 UT. Spread
F observed at Hobart and Perth 11-21 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhancements to 30% at Macquarie Is and depressions to
30% at other stations.
03 Apr
Solar: low
Geomagnetic: Quiet to unsettled with isolated active periods
at higher latitudes.
Frequencies:
Cocos Island Region:
Enhanced by 15-30% from 02-11UT.
Enhanced by 30-55% from 11-20UT.
Near predicted values at other times.
Niue Island Region:
Near predicted monthly values during local day,
Enhanced by 15-30% from 03-14UT.
Enhanced by 25-40% from 14-20UT.
Near predicted values at other times.
Northern Australian Region:
Enhanced by up to 50% from 05-14UT.
Near predicted values at other times.
Southern Australian and New Zealand Region:
Enhanced by up to 45% from 04-13UT.
Near predicted values at other times.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly near predicted values to depressed by 20%.
04 Apr
Solar: very low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Enhanced by 25% during local day,
Enhanced by 45% during local night.
Near predicted monthly values after local dawn.
Niue Island Region:
Enhanced by 25% during local day,
Enhanced by 20% during local night.
Northern Australian Region:
Enhanced by 20% during local day,
Enhanced by 40% during local night.
Enhanced by 25% after local dawn.
Southern Australian and New Zealand Region:
Enhanced by 30% during local day,
Near predicted values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted to depressed by 20% over the UT day.
05 Apr
Solar: very low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Enhanced by 20% during local day,
Enhanced by 35% during local night.
Niue Island Region:
Enhanced by 65% during local day,
Enhanced by 25% during local night.
Northern Australian Region:
Enhanced by 20%,
Southern Australian and New Zealand Region:
Enhanced by 25% during local day,
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
06 Apr
Solar: low
Geomagnetic: Quiet to Minor Storm
Frequencies:
Cocos Island Region:
Enhanced by 40% during local day,
Enhanced by 75% during local night.
Niue Island Region:
Enhanced by 30% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Enhanced by 25% during local day,
Variable conditions during local night.
Enhanced by 50% after local dawn.
Southern Australian and New Zealand Region:
Enhanced by 35% during local day,
Enhanced by 30% to depressed up to 25% for southern
most regions during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to depressed at times
over the UT day.
07 Apr
Solar: low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Enhanced by 30% during local day,
Enhanced by 30% during local night.
Niue Island Region:
Enhanced by 35% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Enhanced by 35% during local day,
Enhanced by 20% during local night.
Enhanced by 25% after local dawn.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to Depressed by 15% over the UT
day.
2. FORECAST (08 APRIL - 14 APRIL)
Solar:
Low
Geomagnetic:
Possible isolated active periods on 9-10 Apr.
Quite to unsettled conditions otherwise.
Frequencies:
Mildly depressed periods possible on 10-11 Apr at higher latitudes.
MUFs near predicted monthly values otherwise.
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au/1/2/1.
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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