Comparison of A1-absorption data with theoretically computed values based on the International Reference Ionosphere (IRI)
Conference
·
· Adv. Space Res.; (United States)
OSTI ID:6399264
Total absorption of HF radio waves at vertical incidence is calculated using the IRI electron density N(h) profiles at a low latitude for low and high solar activities and the calculated values of absorption are compared with the observed values. It is found that the IRI model holds good in this respect only for equinoxial months in years of low solar activity. However, it yields much higher values of absorption than observed during years of high solar activity (all seasons). It is suggested that seasonal anomalous variations of gas compositions and bottomside thickness of the E-layer may be given due weight in revising the IRI.
- Research Organization:
- Gujarat Univ., Ahmedabad, India
- OSTI ID:
- 6399264
- Report Number(s):
- CONF-820582-
- Conference Information:
- Journal Name: Adv. Space Res.; (United States) Journal Volume: 2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Improvement of the solar-cycle variation of IRI lower ionosphere models by means of radio wave propagation data
International reference ionosphere-IRI 79: report of URSI working group G. 4 (identical with COSPAR task group on international reference ionosphere)
Low-latitude seasonal anomalies in ionospheric absorption of radio waves
Conference
·
Sat Dec 31 23:00:00 EST 1983
· Adv. Space Res.; (United States)
·
OSTI ID:6094168
International reference ionosphere-IRI 79: report of URSI working group G. 4 (identical with COSPAR task group on international reference ionosphere)
Technical Report
·
Sat Oct 31 23:00:00 EST 1981
·
OSTI ID:7027167
Low-latitude seasonal anomalies in ionospheric absorption of radio waves
Journal Article
·
Fri Mar 01 00:00:00 EDT 1974
· J. Atmos. Terrest. Phys., v. 36, no. 3, pp. 537-543
·
OSTI ID:4360094
Related Subjects
640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
COMPARATIVE EVALUATIONS
DATA ACQUISITION
E REGION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
IONOSPHERE
PLANETARY IONOSPHERES
RADIATIONS
RADIOWAVE RADIATION
SHORT WAVE RADIATION
WAVE PROPAGATION
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
COMPARATIVE EVALUATIONS
DATA ACQUISITION
E REGION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
IONOSPHERE
PLANETARY IONOSPHERES
RADIATIONS
RADIOWAVE RADIATION
SHORT WAVE RADIATION
WAVE PROPAGATION