TITLE: 
  The detection of the hydroxyl nightglow layer in the mesosphere 
  by ISAMS/UARS

AUTHORS: 
  Zaragoza, G., M. Lopez-Puertas, M. A. Lopez-Valverde and F. W. Taylor

REFERENCE:
  Geophys. Res. Lett., 25, pp.2417-2420, 1998

ABSTRACT:

Measurements of night-time radiance near 4.6-um by the ISAMS instrument 
on board of UARS satellite exhibit an enhancement in the upper mesosphere. 
We show in this work that this increase around 85 km tangent height is due
to the OH(9--8) and OH(8--7) Meinel bands. The ISAMS database offers then
very valuable information on the variability over a seasonal cycle of the
OH high vibrational populations from which the chemical heating of the
upper mesosphere can be derived.