[Ips-wsgr] IPS Weekly Solar and Geophysical Report (13 April 01)
rwc
rwc at ips.gov.au
Fri Apr 13 11:13:42 EST 2001
SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 13 APRIL 2001, 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 192 180 169 165 170 160 149
AFr 11 17 33 17 7 69 ( 45)
Aaus 12 18 33 15 8 51 ( 25)
T 153 155 152 131 131 120 70
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian Region.
Frequencies: Australian Ionospheric F2 critical frequencies
06 Apr
Solar: high, with an X5.6/SF at 1921UT
Geomagnetic: Quiet to Unsettled
Frequencies:
Equatorial PNG Region:
Mostly 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:
Mostly near predicted monthly values,
Antarctic Region (Casey/Scott Base):
Enhanced by 25% over the UT day.
07 Apr
Solar: very low
Geomagnetic: Quiet to Active
Frequencies:
Equatorial PNG and Northern Australian Regions:
Mostly near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base):
Enhanced by 25% over the UT day.
08 Apr
Solar: very low
Geomagnetic: Quiet to Major Storm
Frequencies:
Equatorial PNG Region:
Mostly near predicted monthly values,
Enhanced by 30% after local dawn.
Northern Australian Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
09 Apr
Solar: high, with an M7.9/2B at 1534UT
Geomagnetic: Unsettled to Active
Frequencies:
Equatorial PNG Region:
Mostly near predicted monthly values,
Northern Australian Region:
Mostly near predicted monthly values,
Southern Australian and New Zealand Region:
Depressed by 10 to 20% at the start of the UT day,
Mostly near predicted monthly values afterwards,
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
10 Apr
Solar: high, with an X2.3/3B at 0526UT
Geomagnetic: Quiet to Unsettled
Frequencies:
Equatorial PNG Region:
Mostly near predicted monthly values,
Northern Australian Region:
Mostly near predicted monthly values,
Enhanced by 15% after local dawn.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Enhanced by 20% over the UT day.
11 Apr
Solar: moderate, with an M1 at 0031UT, and an M2/1F at 1326UT
Geomagnetic: Quiet until sudden commencement at 1440UT then
severe storm.
Frequencies:
Equatorial PNG Region:
Enhanced by 15% during local day,
Near predicted monthly values during local night.
Depressed by 15% after local dawn.
Northern Australian Region:
Mostly near predicted monthly values,
Depressed by 40% after local dawn.
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Depressed by 55% after local dawn.
Antarctic Region (Casey/Scott Base):
Depressed by 40% over the UT day.
12 Apr
Solar: high, with an X2/-- at 1028UT , and an M1/1N at 0304UT
Geomagnetic: Minor storm
Frequencies:
Equatorial PNG Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Depressed by 45% during local day,
Depressed by 15% during local night.
Antarctic Region (Casey/Scott Base):
PCA.
2. FORECAST (13 APRIL - 19 APRIL)
Solar: Moderate to high declining to moderate
Geomagnetic: Storm conditions expected 14,15 April
Frequencies: Depressions expected 14,16 April and periods of PCA
are possible.
PEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.
IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au/users/asfc/
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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