[Ips-wsgr] SWS Weekly Solar and Geophysical Report (19 May 17) issued 0256 UT on 19 May 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Fri May 19 12:56:03 EST 2017
SUBJ: SWS WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 19 MAY 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (12 MAY - 18 MAY)
Date 12 13 14 15 16 17 18
10cm 69 70 71 71 72 71 72
AFr 6 5 11 17 10 9 ( 13)
Aaus 4 2 7 8 7 6 ( 4)
T 1 2 0 6 15 11 14
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
12 May
Solar: Very low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Depressed by 25% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Depressed by 25% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% over the UT day.
13 May
Solar: Very low
Geomagnetic: Quiet
Frequencies:
Cocos Island Region:
Mostly near predicted monthly values.
Niue Island Region:
Depressed by 25% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
14 May
Solar: Very low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
No data available during local night.
Depressed by 20% after local dawn.
Niue Island Region:
Depressed by 25% during local day.
Near predicted monthly values during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 20% over the UT day.
15 May
Solar: Very low
Geomagnetic: Quiet to Active
Frequencies:
Cocos Island Region:
No data available during local day.
No data available during local night.
Niue Island Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 20% over the UT day.
16 May
Solar: Very low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Mostly near predicted monthly values.
Niue Island Region:
Mostly near predicted monthly values.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 30% over the UT day.
17 May
Solar: Very low
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Niue Island Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Enhanced by 20% after local dawn.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 25% over the UT day.
18 May
Solar: Very low
Geomagnetic: Mostly quiet to unsettled with isolated active
periods
Frequencies:
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% over the UT day.
2. FORECAST (19 MAY - 25 MAY)
Solar:
Very low
Geomagnetic:
Minor storm on 19-21 May. Some major storm periods possible on 20 May. Quiet to
unsettled on most other days with the possibility of some active periods on 22
May.
Frequencies:
Minor to mild MUF depressions possible on 19 and 22 May.
Minor to moderate MUF depressions expected on 20 and 21 May.
MUFs mostly near predicted monthly values on other days.
For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Space Weather Services email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386 WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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