[14a-K304-1~11] 3.7 Optical measurement, instrumentation, and sensor

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[14a-K304-8] Measurement of dust and wind fields in the surface layer using a low-coherence Doppler lidar

〇(B)Yudai Hara¹, Kosuke Okubo¹, Tatsuo Shiina¹ (1.Chiba Univ.)

Keywords:

Doppler Lidar,Low coherence,Wind measurement

The wind fields and dust flows in the lower atmosphere are steeper and more complex than those in the upper atmosphere, and the demand for measurement is increasing. Existing Doppler lidars cannot track the motion of the lower atmosphere, which is on a small spatio-temporal scale, because they are designed for the vertical upper atmosphere.
In this study, we develop a low coherence Doppler lidar (LCDL) to measure dust on the ground in the boundary layer and indoor wind fields. We report that it is possible to distinguish suspended particulate matter based on differences in signal output.