Author:
Iwai Hironori,Aoki Makoto
Abstract
The performance of a coherent 2-µm differential absorption lidar (DIAL) for simultaneously measuring water vapor (H2O) and radial wind velocity was evaluated. For measuring H2O, a wavelength locking technique was applied to the H2O-DIAL system. The H2O-DIAL system was evaluated under summer daytime conditions in Tokyo, Japan. H2O-DIAL measurements were compared with measurements from radiosondes. The H2O-DIAL-derived volumetric humidity values agreed with the radiosonde-derived values over the range from 11 to 20 g/m3 with a correlation coefficient of 0.81 and a root-mean-square difference of 1.46 g/m3. Comparisons between the H2O-DIAL and the in-situ surface meteorological sensors demonstrated the simultaneous measurement of H2O and radial wind velocity.
Funder
Japan Society for the Promotion of Science
Subject
Atomic and Molecular Physics, and Optics
Cited by
4 articles.
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