[Ips-wsgr] ASWFC Weekly Solar and Geophysical Report (24 February 23) issued 0056 UT on 24 Feb 2023 [SEC=OFFICIAL]
rwc
rwc at ips.gov.au
Fri Feb 24 11:56:38 EST 2023
SUBJ: ASWFC WEEKLY SOLAR AND GEOPHYSICAL REPORT
ISSUED ON 24 FEBRUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx
1. SUMMARY (17 FEBRUARY - 23 FEBRUARY)
Date 17 18 19 20 21 22 23
10cm 343 167 169 160 161 152 148
AFr 4 5 4 6 15 4 ( 16)
Aaus 3 3 6 7 12 5 ( 14)
T 111 112 132 117 134 111 118
Solar: Solar flare activity
Geomagnetic: Geomagnetic activity observed for Australian region.
Frequencies: Australian ionospheric F2 critical frequencies
17 Feb
Solar: R3, with an X2.3 at 2017UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 40% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 30% during local night.
Northern Australian Region:
Enhanced by 15% during local day.
Enhanced by 30% during local night.
Enhanced by 25% after local dawn.
Southern Australian Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
18 Feb
Solar: R0
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 35% during local night.
Enhanced by 35% after local dawn.
Niue Island Region:
Enhanced by 25% during local day.
Enhanced by 20% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Enhanced by 20% after local dawn.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Enhanced by 30% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% over the UT day.
19 Feb
Solar: R0
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Enhanced by 15-85%.
Niue Island Region:
Enhanced by 15%.
Northern Australian Region:
Enhanced by 20-50%.
Southern Australian Region:
Enhanced by 15-35%.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
20 Feb
Solar: R1, with an M4.4 at 1458UT
Geomagnetic: G0
In the BOM magnetometer data for 20 Feb, a weak (12nT) impulse
was observed at 1036UT.
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Enhanced by 55% after local dawn.
Niue Island Region:
Enhanced by 15% during local day.
Enhanced by 25% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Southern Australian Region:
Enhanced by 15% during local day.
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 20% over the UT day.
21 Feb
Solar: R2, with an M1.6 at 1111UT, an M4.8 at 1123UT,
and an M5.1 at 2017UT
Geomagnetic: G1
Frequencies:
Cocos Island Region:
Enhanced by 30-35% over the UT day.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Enhanced by 20% during local day.
Enhanced by 20-40% during local night and after local dawn.
Southern Australian Region:
Enhanced by 15% during local day.
Enhanced by 20-25% during local night and after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
22 Feb
Solar: R1, with an M1.2 at 0506UT, and an M2.7 at
1350UT
Geomagnetic: G0
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Enhanced by 20% after local dawn.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Northern Australian Region:
Enhanced by 15% during local day.
Enhanced by 20% during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Enhanced by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
23 Feb
Solar: R1, with an M1.5 at 0614UT, an M1.0 at
0848UT and an M1.3 at 0900UT
Geomagnetic: Quiet to Unsettled
Frequencies:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Enhanced by 40% after local dawn.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 30% during local night.
Enhanced by 35% after local dawn.
Northern Australian Region:
Enhanced by 15% during local day.
Enhanced by 20% during local night.
Southern Australian Region:
Enhanced by 20% during local day.
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
2. FORECAST (24 FEBRUARY - 02 MARCH)
Solar:
R1-R2 conditions are expected over 24-28 Feb with
R0-R1 conditions expected over 1-2 Mar.
Geomagnetic:
G0 geomagnetic conditions are expected over the week
of 24-Feb to 2-Mar, with a chance of G1 conditions
over 24-28 Feb due to coronal hole high speed wind
stream effects.
Frequencies:
MUFs near predicted monthly values to 15% enhanced
throughout the week, with the chance of mild depressions
over 26-Feb to 1-Mar due to possible geomagnetic
disturbed conditions.
For an explanation of some of the terms in this report, go to
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au
More information about the ips-wsgr
mailing list