[Ips-dhfpr] IPS Daily HF Prop Report - 08 March 11
Regional Warning Centre
rwc at ips.gov.au
Wed Mar 9 10:55:30 EST 2011
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 08/2330Z MARCH 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (08 MARCH)
Date T index Conditions
08 Mar 73 Normal
Flares Max Fadeout Freq. Sectors
M1.3 0229UT possible lower E. Asia/Aust.
M1.5 0400UT possible lower E. Asia/Aust.
M5.3 1044UT possible lower European
M4.4 1829UT possible lower East Pacific/
M1.4 2027UT possible lower East Pacific/
M1.0 2223UT possible lower West Pacific
Cocos Island Region:
Enhanced by 35% during local day,
Enhanced by 40% during local night.
Enhanced by 25% after local dawn.
Niue Island Region:
Enhanced by 45% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Enhanced by 15% during local day,
Enhanced by 100% during local night.
Southern Australian and New Zealand 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.
Proton event in progress, increased absorption observed.
PCA Event : 10Mev Proton/PCA Event Began 08 03 2011 0115UT and is in progress
Predicted Monthly T index for March: 40
2. FORECAST (09 MARCH - 11 MARCH)
Date T index Conditions MUFs
09 Mar 50 Normal-Fair 5 to 15% above predicted monthly
10 Mar 35 Normal depressed 5 to 15%/near predicted
11 Mar 40 Normal Near predicted monthly values
COMMENT: IPS HF Communications Warning 21 was issued on 8 March
and is current for interval 8-9 March (SWFs) . Significantly
degraded conditions were observed at high latitudes during 8
March due to a Polar Cap Absorption event. Mostly normal to good
conditions should be observed for 9 March. Some slightly degraded
conditions may be observed during 10 March in response to anticipated
mildly increased geomagnetic activity on 9 March. SWFs possible
for 9 March.
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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