オダ　リョウコ   Ryoko Oda   小田　僚子    所属   千葉工業大学  創造工学部 都市環境工学科    千葉工業大学  創造工学研究科 都市環境工学専攻    千葉工業大学  工学研究科 工学専攻    職種   教授
言語種別	日本語
発行・発表の年月	2013/03
形態種別	学術雑誌
査読	査読あり
標題	Performance and Technique of Coherent 2-um Differential Absorption and Wind Lidar for Wind Measurement
執筆形態	共著
掲載誌名	Jounal of Atmospheric and Oceanic Technology
巻・号・頁	30,429-449頁
著者・共著者	Hironori Iwai,　Shoken Ishii, Ryoko Oda, Kohei Mizutani, Shinya Sekizawa, Yasuhiro Murayama
概要	A coherent 2-um differential absorption and wind lidar (Co2DiaWiL) has been built to measure CO2 concentration and radial wind speed. The performance of the Co2DiaWiL is described and analyzed, with a view to demonstrating system capabilities for remote measurements of wind velocities in the atmospheric boundary layer and free troposphere. The Co2DiaWiL achieved a velocity precision of 0.12 m s-1, derived from the magnitude of random error in radial wind velocity measurements. Quantitative intercomparisons of 1-min averages between the Co2DiaWiL and a sonic anemometer revealed a correlation coefficient of 0.99. A pseudo-dual-Doppler technique was developed to retrieve horizontal wind components with a single-Doppler lidar and a steering mirror. Intercomparisons of the 1-min-averaged u and y components from the pseudodual-Doppler lidar measurements with those from the sonic anemometer revealed correlation coefficients of 0.84 and 0.83, respectively.