Lidar Measurements of Cloud-tracked Winds

Shiv R. Pal Institutefor Space and Terrestrial Science and Department of Physics and Astronomy, York University, North York, Ontario, Canada

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Irina Pribluda Institutefor Space and Terrestrial Science and Department of Physics and Astronomy, York University, North York, Ontario, Canada

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Allan I. Carswell Institutefor Space and Terrestrial Science and Department of Physics and Astronomy, York University, North York, Ontario, Canada

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Abstract

This paper describes wind measurements derived from displacements of small-scale cloud features obtained from time-lapse videography and simultaneous lidar measurements. Lidar provides the attitude of the cloud feature, with a high degree of accuracy. The video picture provides the information on the horizontal displacement coordinates of the wind speed and direction. Analysis of a large body of data has shown that the method can provide wind information with good spatial and temporal resolution. Comparisons with rawinsonde measurements show very good agreement.

Abstract

This paper describes wind measurements derived from displacements of small-scale cloud features obtained from time-lapse videography and simultaneous lidar measurements. Lidar provides the attitude of the cloud feature, with a high degree of accuracy. The video picture provides the information on the horizontal displacement coordinates of the wind speed and direction. Analysis of a large body of data has shown that the method can provide wind information with good spatial and temporal resolution. Comparisons with rawinsonde measurements show very good agreement.

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