OPENING ADDRESS XI LIST OF PARTICIPANTS XV SESSION 1 THE ATMOSPHERE AND IONOSPHERE BELOW 150 km L. Thomas SOME OUTSTANDING PROBLEMS IN THE NEUTRAL AND IONIZED ATMOSPHERE BETWEEN 60 AND 150 km ALTITUDE 3 Peter M. Banks HIGH-LATITUDE IONOSPHERE-ATMOSPHERE INTERACTIONS (Abstract) 19 V. Domingo SOLAR RADIATION VARIATION AND CLIMATE 21 R. Bernard MAREES ET ONDES PLANETAIRES DANS LA BASSE THERMOSPHERE ET LA HAUTE MESOSPHERE 43 Michel Blanc and Paul Amayenc CONTRIBUTION OF INCOHERENT SCATTER RADARS TO THE STUDY OF MIDDLE AND LOW LATITUDE IONOSPHERIC ELECTRIC FIELDS 61 SESSION 2 THE OZONOSPHERE T. M. Donahue BASIC PROCESSES IN THE STRATOSPHERE AND THE MESOSPHERE (Abstract) 93 VI TABLE OF CONTENTS Ivar S. A. Isaksen CHEMICAL MODELS OF THE NEUTRAL ATMOSPHERE 95 M. Ackerman MEASUREMENTS OF MINOR CONSTITUENTS IN THE STRATOSPHERE 107 A. Vidal-Madjar, R. G. Roble, W. G. !iankin,G. Artzner, R. M. Bonnet, P. Lemaire, and J. C. Vial HIGH-RESOLUTION ATMOSPHERIC EXTINCTION MEASUREMENTS FROM THE FRENCH EXPERIMENT ON BOARD THE NASA SPACECRAFT OSO-8 117 M. Anderegg, J. E. Beckman, A. F. M. Moorwood, H. H. Hippelein, J. P. Baluteau, E. Bussoletti, A. Marten, and N. Coron HIGH-R~rOLUTION ATMQrPHERIC EMISSION SPECTROSCOPY AT 120 cm AND 535 cm WITH A RAPID-SCAN INTERFEROMETER AND 91 cm AIRBORNE TELESCOPE 129 Erwin Schanda, Joachim Fulde, and Klaus Kunzi MICROWAVE LIMB SOUNDING OF STRATOSPHERE AND MESOSPHERE 135 SESSION 3 METEOROLOGY IN THE IONOSPHERE AND STRATOSPHERE Hans-Jurgen Bolle CRITICAL CLIMATE PARAMETERS AND THEIR MONITORING FROM SPACE 149 R. J. Murgatroyd, A. O'Neill, and S. A.

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Session 1 The Atmosphere and Ionosphere Below 150 km.- Some Outstanding Problems in the Neutral and Ionized Atmosphere between 60 and 150 km Altitude.- High-Latitude Ionosphere-Atmosphere Interactions (Abstract).- Solar Radiation Variation and Climate.- Marées ET Ondes Planétaires Dans La Basse Thermosphère ET La Haute Mésosphère.- Contribution of Incoherent Scatter Radars to the Study of Middle and Low Latitude Ionospheric Electric Fields.- Session 2 The Ozonosphere.- Basic Processes in the Stratosphere and the Mesosphere (Abstract).- Chemical Models of the Neutral Atmosphere.- Measurements of Minor Constituents in the Stratosphere.- High-Resolution Atmospheric Extinction Measurements from the French Experiment on Board the Nasa Spacecraft OSO-8.- High-Resolution Atmospheric Emission Spectroscopy at 120 cm?1 and 535 cm?1 with a Rapid-Scan Interferometer and 91 cm Airborne Telescope.- Microwave Limb Sounding of Stratosphere and Mesosphere.- Session 3 Meteorology in the Ionosphere and Stratosphere.- Critical Climate Parameters and Their Monitoring from Space.- Stratospheric Models.- Review of Observations from Meteorological Satellites (Abstract).- Session 4 Spacelab Facilities for Atmospheric Research.- Spacelab as an Orbiting Atmospheric Laboratory.- The Design of a Spacelab Lidar Facility.- Spacelab-Borne Lidar Scientific Objectives.- Subsatellites for Atmospheric Research.- The Role of Passive Sounder Packages on Spacelab.- A Review of the Evolution of Atmospheric Science Experiments for Amps (Abstract).- Session 5 Experiments from Spacelab.- Field Aligned Currents Measured by Incoherent Scatter on Board the Spacelab.- Monitoring of the Tropospherical Aerosol Using a Spacelab-Borne Lidar System.- Investigation of Plasma Instabilities in Equatorial'Spread F' by Langmuir Probe Using Spacelab (Abstract).- Atmospheric Experiments with the Spacelab Lidar: a Discussion of the Major Features of the Method.- Far Infrared Fourier Spectroscopic Observation of the Earth's Atmosphere from Spacelab.- Infrared Observation of Nonthermal Emissions from Spacelab.- Image Intensifying TV Observations in the 1975 Spacelab Assess Mission.- EUV-Visual Measurements from Spacelab.- An Investigation of Minor Constituents from Spacelab.- Ultraviolet Observations of the Upper Atmosphere from Spacelab.- Passive Sounding Experiments and Experimental Requirements for the Determination of Trace Gas Concentrations.- Optical Absorption Techniques (Abstract).- General Discussion (Summary).- Index of Authors.