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The Doppler Aerosol Wind (DAWN) Airborne, Wind-Profiling Coherent-Detection Lidar System: Overview and Preliminary Flight Results

2013; American Meteorological Society; Volume: 31; Issue: 4 Linguagem: Inglês

10.1175/jtech-d-12-00274.1

1520-0426

Michael J. Kavaya, Jeffrey Y. Beyon, Grady J. Koch, Mulugeta Petros, Paul Petzar, Upendra N. Singh, Bo Trieu, Jirong Yu,

Meteorological Phenomena and Simulations

Abstract The first airborne wind measurements of a pulsed, 2-μm solid-state, high-energy, wind-profiling lidar system for airborne measurements are presented. The laser pulse energy is the highest to date in an eye-safe airborne wind lidar system. This energy, the 10-Hz laser pulse rate, the 15-cm receiver diameter, and dual-balanced coherent detection together have the potential to provide much-improved lidar sensitivity to low aerosol backscatter levels compared to earlier airborne-pulsed coherent lidar wind systems. Problems with a laser-burned telescope secondary mirror prevented a full demonstration of the lidar’s capability, but the hardware, algorithms, and software were nevertheless all validated. A lidar description, relevant theory, and preliminary results of flight measurements are presented.