[Ips-wsgr] ASWFC Weekly Solar and Geophysical Report (17 March 23) issued 0038 UT on 17 Mar 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 17 MARCH 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (10 MARCH - 16 MARCH)
Date     10    11    12    13    14    15    16
10cm    171   157   150   143   139   136   135
AFr      10     5     6     2    12    19  ( 11)
Aaus      5     3     5     1    14    20  (  3)
T       113   145   150   142   163   112   136

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

10 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 30% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Enhanced by 35% after local dawn.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
      Enhanced by 60% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

11 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 45% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 35% during local night.
      Enhanced by 35% after local dawn.
   Southern Australian Region:
      Enhanced by 30% during local day.
      Enhanced by 25% during local night.
      Enhanced by 50% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

12 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 35% during local day.
      Enhanced by 95% during local night.
      Enhanced by 30% after local dawn.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
      Enhanced by 65% after local dawn.
   Southern Australian Region:
      Enhanced by 40% during local day.
      Enhanced by 35% during local night.
      Enhanced by 35% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

13 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Enhanced by 20-30%.
   Northern Australian Region:
      Enhanced by 20-30%.
   Southern Australian Region:
      Enhanced by 35-40%.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

14 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Enhanced by 25-65% 
   Northern Australian Region:
      Enhanced by 30-55% 
   Southern Australian Region:
      Enhanced by 35-40% 
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.
      Proton event in progress, increased absorption observed at Mawson.

15 Mar 
Solar:        R0
Geomagnetic:  G1
In the BOM magnetometer data for 15 Mar, a weak (19nT) impulse 
was observed at 0427UT.
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 45% during local day.
      Enhanced by 90% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Enhanced by 25% after local dawn.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

16 Mar 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 105% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 35% during local night.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 25% during local night.
      Enhanced by 40% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

 
2. FORECAST (17 MARCH - 23 MARCH)
Solar: 
R0

Geomagnetic:  
G0 geomagnetic conditions are generally expected for most of the week. 

Frequencies:  
Maximum usable frequencies (MUFs) are expected to be near predicted monthly
values to 30% enhanced, with normal HF communication 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