Surface atmosphere has the small and steep spatiotemporal dynamics. It is influenced by the ground / sea-surface conditions, their up and down, air current, and so on. It greatly affects to the human living space. 265nm LED mini-lidar is developed to observe the surface atmosphere. As the transmitting light is in solar blind region, it can monitor near-range atmosphere up to 100m in daytime with the same signal-to-noise ratio in nighttime.
The lidar echo detection was evaluated under the solar illumination. It is confirmed that the enough signal-to-noise ratio is obtained in daytime, which is matched with the theoretical estimation. The surface atmosphere observation is simulated with the artificial fog / rain facility “Light Tunnel”. Fog flow and rainfall were visualized and analyzed with time series lidar echoes. We will propose the easy-to-use method for dynamics monitoring of surface atmosphere.
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