[Ips-dsgr] SWS Daily Report - 10 September 16 issued 2330 UT on 10 Sep 2016 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Sun Sep 11 09:30:23 EST 2016


SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/10 SEPTEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 10 SEPTEMBER AND FORECAST FOR 11 SEPTEMBER - 13 SEPTEMBER
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 10 Sep:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 10 Sep:  93/38


1B. SOLAR FORECAST
             11 Sep             12 Sep             13 Sep
Activity     Very low to low    Very low to low    Very low to low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    95/41              90/34              85/27

COMMENT: Solar activity was Very Low for the UT day, 10 September. 
Three active regions, AR 2585, 2989 and 2591, produced several 
B-class flares. AR 2591 was responsible for the largest X-ray 
flare, B9.2, peaking at 1922 UT. Expect solar activity to be 
Very Low to Low for the next three days with a slight chance 
of an M-class flare which can be produced by AR2585 (now at N08W63). 
No Earthward directed CMEs were observed in available SOHO/LASCO 
imagery. The solar wind speed was varying in the range 370-430 
km/s, slowly decreasing on average, currently the speed is around 
380 km/s. The solar wind speed is expected to remain in the vicinity 
of its nominal levels during the next 24 hours. The Bz component 
of the interplanetary magnetic field ranged between -3/+3 nT 
during the last 24 hours with Bt varying between 3 nT and 5 nT; 
currently Bt is 3 nT.

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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 10 Sep: Quiet

Estimated Indices 10 Sep : A   K           
   Australian Region       1   11100001
      Cocos Island         1   11100001
      Darwin               2   12000002
      Townsville           2   12110011
      Learmonth            1   01100002
      Alice Springs        1   01100002
      Norfolk Island       0   11000000
      Gingin               1   01100002
      Camden               1   11100001
      Canberra             0   01000001
      Launceston           2   12100001
      Hobart               1   01100001    

Estimated Antarctic Regional K Indices 10 Sep :
      Macquarie Island     1   11110000
      Casey                6   33310002
      Mawson              15   33120016

Observed Regional daily pc3 Indices 10 Sep : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice Springs        0   (Quiet)
      Gingin               0   (Quiet)
      Canberra             0   (Quiet)
      Melbourne           NA

Pc3 pulsations are high frequency (10-45 second period) variations 
of the Earths magnetic field. Daily pc3-indices are the daily sum 
of 20 minute pc3-indices for that station and have been shown to be
well correlated with rejection of high resolution aeromagnetic
survey flight-line data. 

NOTE: Indices may have been generated from data obtained in 
cooperation with the following organisations: Geoscience Australia, 
University of Newcastle Space Physics Group, Australian Government 
Antarctic Division and International Center for Space Weather 
Science and Education, Japan.


Estimated AFr/Ap Indices 10 Sep : A 
           Fredericksburg         4
           Planetary              5                         

Observed AFr/Ap Indices 09 Sep :  A   K
           Fredericksburg         6
           Planetary              4   2010 1112     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
11 Sep     7    Quiet
12 Sep     7    Quiet
13 Sep    10    Quiet to Unsettled

COMMENT: Geomagnetic conditions were Quiet over Australia for 
the UT day, 10 September. In the Antarctic region isolated Unsettled 
to Storm periods were also observed. For the next 2 UT days, 
11-12 September, geomagnetic activity is expected to be Quiet 
with possible isolated Unsettled periods. For 13 September Geomagnetic 
activity can increase up to Unsettled levels due to coronal hole 
effects.

-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
10 Sep      Normal         Normal         Normal-fair    

PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
11 Sep      Normal         Normal         Normal-fair
12 Sep      Normal         Normal         Normal-fair
13 Sep      Normal         Normal         Normal-fair

COMMENT: For the next 3 UT days, 11-13 September, normal HF conditions 
are expected.

-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY


Date   T index
10 Sep    39

Observed Australian Regional MUFs
   Cocos Island Region:
      Enhanced by 15% during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      No data available.     
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Monthly T index:
Month  T index
Aug      29
Sep      35
Oct      34

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
11 Sep    35    Near predicted monthly values
12 Sep    35    Near predicted monthly values
13 Sep    35    Near predicted monthly values

COMMENT: Near predicted monthly MUFs were observed in the Australian 
region during the UT day, 10 September. Near predicted monthly 
values of MUFs are expected in the Australian/NZ regions during 
the next 3 UT days, 11-13 September.

-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 09 Sep
       Daily Proton Fluence >1 MeV:   5.0E+05
       Daily Proton Fluence >10 MeV:  1.3E+04
       Daily Electron Fluence >2 MeV: 8.20E+07   (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 9%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: B1.1

ACE Satellite Solar Wind Day Averaged Data for 09 Sep
Speed: 426 km/sec  Density:    7.0 p/cc  Temp:   399000 K  Bz:   0 nT

(Courtesy Space Weather Prediction Center, Boulder USA)
ACE data can be incorrect during strong proton events.
-----------------------------------------------------------

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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