[Ips-dsgr] SWS Daily Report - 27 November 16 issued 2330 UT on 27 Nov 2016 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Mon Nov 28 10:30:25 EST 2016
SUBJ: SWS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 2330UT/27 NOVEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 27 NOVEMBER AND FORECAST FOR 28 NOVEMBER - 30 NOVEMBER
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 27 Nov: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 27 Nov: 83/24
1B. SOLAR FORECAST
28 Nov 29 Nov 30 Nov
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 84/26 83/24 83/24
COMMENT: Solar activity was Very Low for the UT day, 27 November.
Expect solar activity to be Low for the next three days with
a slight chance of an M-class flare. No Earthward directed CMEs
observed in the available SOHO imagery. Due to the continued
coronal hole effect, solar wind stream is still enhanced, but
decreased throughout the UT day from 660 km/s to around 570 km/s.
Bt remained around 5nT. The Bz component of the IMF ranged between
-/+ 5nT over the UT day. Solar wind stream is expected to continue
to weaken over the next three days.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 27 Nov: Mostly Quiet
with isolated Unsettled periods
Estimated Indices 27 Nov : A K
Australian Region 5 22222111
Cocos Island 2 11211010
Darwin 5 22222002
Townsville 6 22222112
Learmonth 8 32322121
Alice Springs 5 22222012
Norfolk Island 4 22222001
Gingin 5 22222111
Camden 6 22222112
Canberra 6 22222112
Launceston 8 23322112
Hobart 6 23222111
Estimated Antarctic Regional K Indices 27 Nov :
Macquarie Island 9 23243101
Casey 21 45533222
Mawson 33 45533355
Observed Regional daily pc3 Indices 27 Nov :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice Springs 0 (Quiet)
Gingin 2 (Quiet)
Canberra 24 (Quiet to unsettled)
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 27 Nov : A
Fredericksburg 10
Planetary 10
Observed AFr/Ap Indices 26 Nov : A K
Fredericksburg 9
Planetary 10 2322 1332
2B. MAGNETIC FORECAST
Date Ap Conditions
28 Nov 8 Quiet to Unsettled
29 Nov 8 Quiet to Unsettled
30 Nov 8 Quiet to Unsettled
COMMENT: Geomagnetic conditions were mostly at Quiet level with
isolated Unsettled periods over the last 24 hours for the Australian
region. Similar conditions are expected for 28-30 November.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
27 Nov Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
28 Nov Normal Normal Normal-fair
29 Nov Normal Normal Normal-fair
30 Nov Normal Normal Normal-fair
COMMENT: Mostly normal HF conditions are expected over the next
24 hours.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
27 Nov 16
Observed Australian Regional MUFs
Cocos Island Region:
No data available.
Niue Island Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
Monthly T index:
Month T index
Oct 10
Nov 26
Dec 25
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
28 Nov 20 Near predicted monthly values
29 Nov 20 Near predicted monthly values
30 Nov 20 Near predicted monthly values
COMMENT: Improved ionospheric support observed today. MUFs were
mostly near predicted monthly values in all regions. Sporadic-E
events again observed throughout the region and strong blanketing
Es that obscured the F-region. Expect continued improvement in
ionospheric support for the next few days with possible continuing
Sporadic-E events for Equatorial and Aus/NZ regions.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 26 Nov
Daily Proton Fluence >1 MeV: 1.7E+06
Daily Proton Fluence >10 MeV: 1.4E+04
Daily Electron Fluence >2 MeV: 1.00E+09 (high fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:30%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A9.3
ACE Satellite Solar Wind Day Averaged Data for 26 Nov
Speed: 655 km/sec Density: 2.8 p/cc Temp: 212000 K Bz: -1 nT
(Courtesy Space Weather Prediction Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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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
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