The 33 papers published were selected from those given at the above Proceedings, and are divided into three chapters. Chapter 1 provides four papers under the heading Up-dating of CIRA 1986. In Chapter 2, entitled Trace Constituents of the Middle and Upper Atmosphere, the papers published go some way toward providing a set of preliminary reference atmospheres of significant trace species of the middle atmosphere and lower thermosphere. These trace species play important roles in controlling the chemistry, radiation balance and circulation patterns of the Earth's stratosphere, mesosphere and thermosphere. The third chapter, The Localized Response of the Lower Thermosphere and Ionosphere at High Latitudes, describes the broad range of recent advances made by theoretical and modelling activities and also reports on experimental investigations using a wide range of methods, ground-based radar, ground-based optical, space-borne in situ and remote sensing. Several papers concentrate on experimental and theoretical studies of the strong interactions between the ionosphere and thermosphere which occur in the auroral oval and polar cap.
Section headings and selected papers: Up-dating of CIRA
1986. Monthly
mean global climatology of temperature, wind, geopotential height and
pressure for 0-120km, S Chandra et al . Mean temperature fields in the lower
thermosphere, Yu P Koshelkov. Middle atmosphere density data and comparison
with models, K S W Champion. Comparison of the thermosphere total density
model TD 88 with CIRA 86, L Sehnal. Trace Constituents of the Middle and
Upper Atmosphere. Preface. Improved reference models for middle atmosphere
ozone, G M Keating et al . An interim reference model for the variability of
the middle atmosphere water vapor distribution, E E Remsberg et al . A search
for trends in measurements of stratospheric nitric acid, hydrochloric acid
and methane, H Fast & W F J Eva;s. Reference models for thermospheric NO, C A
Barth. Simulation of odd nitrogen distribution in the thermosphere, M Ya
Marov & Yu B Pavl;ukov. Localized Response of the Lower Thermosphere and
Ionosphere at High Latitude. Preface. Response of the ionosphere-thermosphere
system to magnetospheric forcing, R W Schunk. The UV auroral distribution:
its impulsive nature, L L Cogger & J S Murph;ee. Characteristics of the
high-latitude trough, G O L Jones et al . Modelling of E-region auroral
winds, D Rees & T J Fulle;-Rowell. Electron heating by plasma waves in the
high latitude E-region and related effects: theory, J-P St Maurice. The lower
thermospheric coupling study of the CEDAR and WITS programs, J M Forbes.
Numerical simulations of the seasonal response of the thermosphere to
propagating tides, H Parish et al . Author Index.
