[Ips-wsgr] IPS Weekly Solar and Geophysical Report (05 August 11)
rwc
rwc at ips.gov.au
Fri Aug 5 13:26:04 EST 2011
SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 05 AUGUST 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (29 JULY - 04 AUGUST)
Date 29 30 31 01 02 03 04
10cm 112 113 119 125 122 120 116
AFr 3 10 7 6 3 3 ( 5)
Aaus 4 14 8 6 3 2 ( 3)
T 34 44 52 46 45 38 34
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
29 Jul
Solar: Low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 35% during local night.
Depressed by 20% after local dawn.
Niue Island Region:
Depressed by 15% during local day.
Depressed by 25% during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Depressed by 15% during local day.
Depressed by 35% during local night.
Southern Australian and New Zealand Region:
Depressed by 15% during local day.
Depressed by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 30%.
30 Jul
Solar: High, with an M9.3 at 0209UT
Geomagnetic: Quiet to Active
Frequencies:
Cocos Island Region:
Depressed by 25% during local day.
Depressed by 35% 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:
Depressed by 20% 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):
Depressed by 25%.
31 Jul
Solar: Low
Geomagnetic: Quiet to unsettled
Frequencies:
Cocos Island Region:
Near predicted monthly values with depressions to
30% 01, 17 and 21-22 UT and to 45% 12-16 and 23 UT.
Niue Island Region:
No data.
Northern Australian Region:
Near predicted monthly values. Depressions to 30%
01-03 and 12-18 UT at Darwin. Night spread F observed
at Darwin and Townsville.
Southern Australian and New Zealand Region:
Near predicted monthly values. Enhancements to 35%
09-20 UT at most stations. Depressions to 20% 12-16 UT
at Learmonth and 00-12 UT at Hobart. Some night spread
F observed at most stations. Hobart, no data 14-23 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to 25% depressed.
01 Aug
Solar: Low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day,
Depressed by 35% during local night. Spread-F
13-15UT.
Niue Island Region:
No data available.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 25% during local night. Spread-F observed
Townsville 12-20UT.
Southern Australian and New Zealand Region:
Near predicted monthly values. Hobart evening spread-F
and periods of sporadic-E conditions 13-19UT. Perth
spread-F 15-21UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 40% over the UT day.
Casey no data available.
02 Aug
Solar: Moderate, with an M1.4 at 0622UT
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day,
Depressed by 30% during local night.
Depressed by 35% after local dawn.
Niue Island Region:
No data available.
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):
Depressed by 25% over the UT day.
03 Aug
Solar: High, with an M1.1 at 0339UT, an M1.7 at 0432UT,
and an M6.0 at 1350UT
Geomagnetic: Quiet
Frequencies:
slightly below predicted monthly values
04 Aug
Solar: High, with an M9.3 at 0357UT
Geomagnetic: Quiet to unsettled
A weak (11nT) impulse was observed in the IPS magnetometer data at
2155UT on 04 Aug.
Frequencies:
Cocos Island Region:
Depressed by 15% during local day,
Depressed by 30% during local night.
Depressed by 20% after local dawn.
Niue Island Region:
No data available.
Northern Australian Region:
Depressed by 20% during local day,
Depressed by 25% during local night.
Depressed by 20% after local dawn.
SWF's observed 04-05UT Townsville , Darwin, Learmonth.
Southern Australian and New Zealand Region:
Depressed by 15% during local day,
Near predicted monthly values during local night.
SWFs observed 04-05UT Norfolk Is., Brisbane, Sydney, Perth.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 20% over the UT day.
Proton event in progress, increased absorption observed.
2. FORECAST (05 AUGUST - 11 AUGUST)
Solar:
Moderate chance of high solar activity, early in week.
Geomagnetic:
Active on 7 Aug.
Minor storm on 6 Aug.
Major storm on 5 Aug.
Quiet to unsettled on other days.
Frequencies:
Briefly depressed after local dawn on 7 Aug
Depressed 15% 5 to 6 Aug
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/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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