| Session Details | |
| Section | AS - Atmospheric Sciences |
| Session Title | Airglow Layers on Earth and Terrestrial Planets |
| Main Convener | Dr. Mykhaylo Grygalashvyly (Leibniz-Institute of Atmospheric Physics, Germany) |
| Co-convener(s) | Prof. William Ward (University of New Brunswick, Canada) Dr. P K Rajesh (National Central University, Taiwan) Prof. Patrick Espy (Norwegian University of Science and Technology, Norway) Prof. Orhan Sen (Istanbul Technical University (ITU) Faculty of Aeronautics and Astronautics, Turkey) |
| Session Description | The observations of O2(exc.), O(exc.), Na(exc.) and OH* airglow emissions is a tool extensively used to infer temperatures in MLT (mesosphere – lower thermosphere) and information about dynamical processes, such as gravity waves, planetary waves, and tides. The airglow measurements are used to determine O, O3, and H which are very difficult to measure by other methods, and, in perspective, can be used to retrieve the water vapor. A number of investigations are focused on temperature trends. Recently, airglow emissions were detected on Mars and Venus that give rise new abilities. Notwithstanding large application, less attention was devoted to parameters of the airglow layers such as thickness, altitude, and concentration. Concerning the airglow layers a number of questions arise. How do the altitudes, intensities, concentrations of the layers change? Which variations in temperature corresponds to the layers variations? How do the variations dependent on chemistry, dynamics and Solar activity? What is the relative behavior of the layers? What are the dependences between the heights and emissions intensities (concentrations)? These and other questions can be asked in the framework of seasonal-latitudinal, short-term, and long-term variability. The questions on formation-relaxation processes of the airglow layers are represent an additional field of interest. A session will be dedicated to O2(exc.), O(exc.), Na(exc.) and OH* airglow emissions in the atmospheres of the Earth and Terrestrial planets. Presentations which deal with the details of the formation-relaxation processes, morphology, temporal variability, photochemistry and the nature of its response to dynamical disturbances will be collected, including ground based and satellite observations, model simulations, as well as new observation techniques and theoretical research that can help advance our knowledge of the airglow layers parameters, formation and relaxation. This session is intended to support discussion and collaboration on the understanding of airglow emissions. |