---------------------------------------- Type of abstract: Tutorial Presenter Name: Anne K. Smith Status of first author: non-student ---------------------------------------- Title: Physics and Chemistry of the Mesopause Region ---------------------------------------- Authors: Anne K. Smith Atmospheric Chemistry Division NCAR aksmith@ucar.edu ---------------------------------------- Abstract: This talk will describe the dominant features and unique aspects of the physical system in the mesopause region. Two points will be emphasized: 1) the degree to which composition, energy balance, and dynamics are linked; and 2) the role of external forcing in driving temporal changes. ---------------------------------------- Mesosphere