D J Baker et al 2007 Phys. Scr. 75 615 doi:10.1088/0031-8949/75/5/004
D J Baker1, B K Thurgood1, W K Harrison1, M G Mlynczak2 and J M Russell3
Show affiliationsGlobal measurements of the hydroxyl mesospheric airglow over an extended period of time have been made possible by the NASA SABER infrared sensor aboard the TIMED satellite which has been functioning since December of 2001. The orbital mission has continued over a significant portion of a solar cycle. Experimental data from SABER for several years have exhibited equatorial enhancements of the nighttime mesospheric OH (Δv=2) airglow layer consistent with the high average diurnal solar flux. The brightening of the OH airglow typically means more H+O3 is being reacted. At both the spring and autumn seasonal equinoxes when the equatorial solar UV irradiance mean is greatest, the peak volume emission rate (VER) of the nighttime Meinel infrared airglow typically appears to be both significantly brighter plus lower in altitude by several kilometres at low latitudes compared with midlatitude findings.
92.60.hc Mesospheric composition, energy deposition, constituent transport and chemistry
86A10 Meteorology and atmospheric physics (See also 76Bxx, 76E20, 76N15, 76Q05, 76Rxx, 76U05)
Issue 5 (May 2007)
Received 17 October 2006, accepted for publication 30 January 2007
Published 8 March 2007
D J Baker et al 2007 Phys. Scr. 75 615
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