title: Daytime mesopause temperature measurements with a sodium-vapor dispersive Faraday filter in a lidar receiver.
abstract: Using a dispersive Faraday bandpass filter, we have upgraded our Na temperature lidar to be capable of 24-h operation. Along with a transmitting telescope to reduce the laser beam divergence to 0.2 mrad, the initial use of this unique narrow-band filter in a lidar receiver allowed us to reduce the detected daytime sky background to a level previously encountered at night, making routine daytime temperature measurements in the mesopause region a reality. The implementation, characterization, and results of what we believe are the first daytime mesopause temperature measurements are reported.
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.forename: M A
authors.initials: MA
authors.lastname: White
authors.forename: D A
authors.initials: DA
authors.lastname: Krueger
authors.forename: C Y
authors.initials: CY
authors.lastname: She