title: Application of the lamp mapping technique for overlap function for Raman lidar systems.
abstract: Traditionally, the lidar water vapor mixing ratio (WVMR) is corrected for overlap using data from another instrument, such as a radiosonde. Here we introduce a new experimental method to determine the overlap function using the lamp mapping technique (LMT), which relies on the lidar optics and detection system. The LMT discussed here involves a standard halogen lamp being scanned over the aperture of a Raman lidar telescope in synchronization with the lidar detection system [Appl. Opt.50, 4622 (2011)APOPAI0003-693510.1364/AO.50.004622, Appl. Opt.53, 8538 (2014)APOPAI0003-693510.1364/AO.53.008535]. In this paper, we show results for a LMT-determined overlap function for individual channels, as well as a WVMR overlap function. We found that the LMT-determined WVMR overlap functions deviate within 5% of the traditional radiosonde-determined overlap.
authors.forename: Monique
authors.initials: M
authors.lastname: Walker
authors.forename: Demetrius
authors.initials: D
authors.lastname: Venable
authors.forename: David N
authors.initials: DN
authors.lastname: Whiteman
authors.forename: Tetsu
authors.initials: T
authors.lastname: Sakai