Application of the lamp mapping technique for overlap function for Raman lidar systems

作者：Walker Monique^*; Venable Demetrius; Whiteman David N; Sakai Tetsu

来源：Applied Optics, 2016, 55(10): 2551-2558.

DOI：10.1364/AO.55.002551

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), Appl. Opt. 53, 8538 (2014)]. 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.

• 出版日期2016-4-1
• 单位中国气象科学研究院