Title:
New B0 and B1 Models for IRI
Authors:
Bilitza, D.; Radicella, S. M.; Reinisch, B. W.; Adeniyi, J. O.; Gonzalez, M. E. Mosert; Zhang, S. R.; Obrou, O.
Affiliation:
AA(Raytheon STX, GSFC, Code 632, Greenbelt, MD 20771, USA), AB(Aeronomy and Radiopropagation Laboratory, ICTP, 34100 Trieste, Italy), AC(University of Massachusetts, Center for Atmospheric Res., 600 Suffolk Street, Lowell, MA 01854, USA), AD(Aeronomy and Radiopropagation Laboratory, ICTP, 34100 Trieste, Italy; University of Ilorin, Dept. of Physics, P.M.B. 1515, Ilorin, Nigeria), AE(Complejo Astronomico El Leoncito (CASLEO), CONICET C.de C. 467, 5400 San Juan, Argentina), AF(Wuhan Institute of Physics and Mathematics, P.O.Box 71010, Hubei Province, 430071 Wuhan, PR China), AG(Aeronomy and Radiopropagation Laboratory, ICTP, 34100 Trieste, Italy; Laboratoire de Physique de l'Atmosphere UFR-SSMT. Universite de Cocody 22 BP 582 Abidjan 22, Cote-d'Ivoire)
Journal:
Advances in Space Research, Volume 25, Issue 1, p. 89-95. (AdSpR Homepage)
Publication Date:
00/1999
Origin:
ELSEVIER
Abstract Copyright:
(c) 1999 Elsevier Science B.V. All rights reserved.
Bibliographic Code:
1999AdSpR..25...89B

Abstract

The electron density profile in the F region bottomside is described in the International Reference Ionosphere (IRI) by two parameters: a thickness parameter B0 and a shape parameter B1. The models used for B0 and B1 in IRI are based on ionosonde data from magnetic mid-latitude stations. Comparisons with ionosonde data from several stations close to the magnetic equator show large discrepancies between the model and the data. We propose new models for B0 and B1 based on data from several ionosondes including low and mid latitude stations. Close to the magnetic dip equator the new B0 model provides an improvement over the current IRI model by a factor of up to 1.5