Vertical profile measurements of water vapor are important for improving early prediction accuracy of heavy rainfall. Developing a low-maintenance lidar is expected to establish an extensive lidar observation network to reduce water-related hazards such as torrential rains and floods. In this study, we developed a differential absorption lidar (DIAL) as a low-maintenance lidar. We continuously observed the vertical water vapor profiles with the DIAL and compared them with those of the collocated Raman lidar. The results of the two lidars were in good agreement.
Uchiho et al. (Thu,) studied this question.