[Ips-dhfpr] IPS Daily HF Prop Report - 28 July 03
rwc at ips.gov.au
Tue Jul 29 09:48:18 EST 2003
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 28/2330Z JULY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (28 JULY)
Date T index Conditions
28 Jul 60 Fair-normal
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 10-30% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values,
Mild depressions after local dawn.
Antarctic Region (Casey/Scott Base):
Extended periods of localised disturbance.
PCA Event : No event.
Predicted Monthly T index for July: 63
2. FORECAST (29 JULY - 31 JULY)
Date T index Conditions MUFs
29 Jul 65 Fair near predicted monthly values/depressed
10 to 20%
30 Jul 60 Fair near predicted monthly values/depressed
10 to 20%
31 Jul 70 Normal-Fair Near predicted monthly values
COMMENT: IPS HF Communications Warning 54 was issued on 27 July
and is current for interval 28-29 July. Intense daytime sporadic-E
observed S. Ocean/Antarctic regions. Periods of spread-F observed
S. Aus/Antarctic regions. 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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