Effects of a large mesospheric temperature enhancement on the hydroxyl rotational temperature as observed from the ground

摘要: The rotational temperature obtained from the population distribution in bands of hydroxyl airglow has been shown to be a suitable proxy for at height 87 km [She and Lowe, 1998]. In this paper we examine detail simultaneous observations on November 2–3, 1997, Fort Collins, Colorado (41°N, 105°W), with both sodium lidar Coupling, Energetics, Dynamics Atmospheric Regions (CEDAR) OH mesospheric mapper during which significant differences between temperatures occur. large are associated major enhancement region peak emission. We model effect shape emission rate profile caused by observed night lidar. As result sensitivity processes that give rise airglow, shows distortions its normal shape. These turn lead differ significantly 87-km observations. mean deduced way agrees well values. Such deviations expected rare, occurring only when occurs near profile.