[Ips-wsgr] ASWFC Weekly Solar and Geophysical Report (08 March 24) issued 0044 UT on 08 Mar 2024 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 08 MARCH 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (01 MARCH - 07 MARCH)
Date     01    02    03    04    05    06    07
10cm    153   152   146   140   142   136   137
AFr       9     3    20     8     7     5  ( 11)
Aaus      4     3    19     6     4     4  ( 12)
T       122   109   113    84   108   119   119

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian region.
Frequencies:  Australian ionospheric F2 critical frequencies

01 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 35% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

02 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

03 Mar 
Solar:        R0
Geomagnetic:  G1
In the BOM magnetometer data for 03 Mar, a weak (22nT) impulse 
was observed at 0958UT.
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Enhanced by 30% during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

04 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 30% during local day.
      Enhanced by 55% during local night.
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 30% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 20% over the UT day.

05 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
      Enhanced by 35% after local dawn.
   Niue Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

06 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 30% during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

07 Mar 
Solar:        R0
Geomagnetic:  G0
In the BOM magnetometer data for 07 Mar, a weak (11nT) impulse 
was observed at 0105UT and a weak (9nT) impulse was observed 
at 0733UT.
Frequencies:  
   Cocos Island Region:
      Enhanced by 15-30%.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

Comment:Geomagnetic G1 activity was observed on 03-Mar in the 
Australian region due to a CME/solar filament eruption on 28-Feb, 
which was modelled to arrive on 02-Mar. Smaller variations in the 
solar wind are thought to be associated with the weak impulse 
activity on 07-Mar. No activity geomagnetic followed these impulses. 
 
2. FORECAST (08 MARCH - 14 MARCH)
Solar: R0-R1. Solar region AR3599(S12E02) is growing and
R1 flare activity is becoming more likely.

Geomagnetic:G1 periods are possible during on 9-10 Mar. G0 
conditions are expected on other days of the week.

Frequencies: MUFs may be briefly depressed after local dawn 
on 9-10 Mar for the southern Australian region if geomagnetic 
activity eventuates. MUFs are expected to be near predicted monthly 
values on other days.


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