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Wave-like wind fluctuations observed in the stable surface layer over a plant canopy

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Abstract

Observations of wind velocity and temperature fluctuations were made in the nocturnal surface inversion layer over a paddy field. A remarkable wave-like motion of about 8 min period was seen in horizontal wind speed and standard deviation of vertical wind velocity. In addition, fluctuations of horizontal wind speed and anticlockwise rotation of wind direction with a period of about 30 min were found by power spectral analysis. The phenomena persisted for more than 2 hours. Similar phenomena were also observed at a coastal site at a distance of about 10 km from the paddy field.

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Authors and Affiliations

  1. Institute for Agricultural and Biological Sciences of Okayama University, Kurashiki, Japan

    T. Maitani, Y. Hiramatsu & T. Seo

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  1. T. Maitani
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  2. Y. Hiramatsu
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  3. T. Seo
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Maitani, T., Hiramatsu, Y. & Seo, T. Wave-like wind fluctuations observed in the stable surface layer over a plant canopy. Boundary-Layer Meteorol 29, 273–283 (1984). https://doi.org/10.1007/BF00119793

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  • DOI: https://doi.org/10.1007/BF00119793

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