The High Latitudes in the International Reference Ionosphere

About this book

The papers presented in this volume underline the complex variation patterns and dependencies of ionospheric parameters in the high latitude ionosphere. It became apparent that a different treatment had to be selected for this part of the globe. The proceedings paved the way for regional mapping, storm-time updating and introduction of auroral boundaries and characteristics to be incorporated to bring IRI closer to real conditions. Subsequent to these presentations, improvements will be introduced into IRI.

Contents

Part 1 High latitude ionosphere: electron density - ionospheric mapping in the polar and equatorial zones, K. Rawer; including auroral oval boundaries in the IRI model, D. Bilitza; high latitude digisonde measurements and their relevance to IRI, B.W. Reinisch et al; EISCAT data base for ionospheric modelling - F-region and topside ionosphere, P.N. Collis; main ionization through parameters for ionosphere modelling by HF radio network observations, D.V. Blagoveshchensky and T.D. Borisova; typical behaviour of the high latitude lower ionosphere, M. Friedrich and K.M. Torkar; temperatures and ion composition - morphology of electron temperature in the high latitude plasmasphere, K.-I. Oyama and T. Abe; high latitude ion composition, J.M. Grebowsky and W.R. Hoegy; vibrational kinetics of molecular nitrogen and its role in the composition of the polar thermosphere, G.A. Aladjev and A.S. Kirillov. Part 2 Mid and low latitude ionosphere: a regional model of E- and F-layer critical frequencies, G.A. Zherebtsov et al; on information obtainable from digital ionograms and their corresponding real-height profiles, L. Bossy; the global NO distribution computed on the basis of a dynamic 3D-model and implications on the winter anomaly of the D-layer, G. Sonnemann et al. Part 3 Generalities: EISCAT catalogue specification of the ionospheric quiet and disturbed conditions, T.L. Gulyaeva; definition of disturbance and quietness with topside ionosonde data, T.L. Gulyaeva et al; EISCAT and the EISCAT data base - a tool for ionospheric modelling (E- and D-region), K. Schlegel; a comparison between electron content deduced from the IRI and that measured by the TOPEX dual frequency altimeter, T.R. Robinson and R. Beard.

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