[Ips-dhfpr] IPS Daily HF Prop Report - 29 July 03
rwc
rwc at ips.gov.au
Wed Jul 30 09:52:21 EST 2003
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 29/2330Z JULY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (29 JULY)
Date T index Conditions
29 Jul 63 Normal-fair
Flares Max Fadeout Freq. Sectors
M1.3/1F 0139UT possible lower E. Asia/Aust.
MUFs:
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 10-30% during local night.
Northern Australian Region:
Mostly near predicted monthly values,
Mild depressions after local dawn.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Extended periods of disturbance.
PCA Event : No event.
Predicted Monthly T index for July: 63
2. FORECAST (30 JULY - 01 AUGUST)
Date T index Conditions MUFs
30 Jul 60 Fair-Poor near predicted monthly values/depressed
10 to 20%
31 Jul 60 Fair Near predicted monthly values
with periods of disturbance
at high latitudes.
01 Aug 70 Normal-Fair Near predicted monthly values
with periods of disturbance
at high latitudes.
COMMENT: Equatorial spread-F observed local evening hours. Daytime
spread-F observed Antarctic regions. Periods of strong absorption
observed S. Ocean with isolated periods of mild absorption in
Antarctic region, local night hours. Mild depressions observed
at low latitudes after local dawn today. Expect periods of ionospheric
depression at mid to high latitudes for the next few days in
association with coronal hole induced geomagnetic disturbance.
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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