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Saltation activity and its threshold velocity in the Gurbantunggut Desert, China

Author

Listed:
  • Xinghua Yang

    (China Meteorological Administration
    Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster)

  • Qing He

    (China Meteorological Administration
    Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster)

  • Xinchun Liu

    (China Meteorological Administration)

  • Fan Yang

    (China Meteorological Administration)

  • Wen Huo

    (China Meteorological Administration)

  • Shuanghe Shen

    (Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster)

  • Ali Mamtimin

    (China Meteorological Administration)

Abstract

A field experiment was conducted from 2 May 2010 to 1 May 2012 in the Gurbantunggut Desert, the second largest desert in China, to investigate saltation activity and its threshold velocity, and their relations with atmospheric and soil conditions. The results showed that saltation activity occurred more frequently during 08:00–20:00 Local Standard Time in spring and summer, with air temperatures between 20.0 and 29.0 °C, water vapor pressures between 0.6 and 0.9 kPa, soil temperatures between 25.0 and 30.0 °C, and a soil moisture lower than 0.04 m3/m3. At 2 m height, the saltation threshold velocity varied between 11.1 and 13.9 m/s, with a mean of 12.5 m/s. Threshold velocity showed clear seasonal variations in the following sequence: spring (11.7 m/s)

Suggested Citation

  • Xinghua Yang & Qing He & Xinchun Liu & Fan Yang & Wen Huo & Shuanghe Shen & Ali Mamtimin, 2018. "Saltation activity and its threshold velocity in the Gurbantunggut Desert, China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 90(1), pages 349-364, January.
    • Handle: RePEc:spr:nathaz:v:90:y:2018:i:1:d:10.1007_s11069-017-3047-4
    DOI: 10.1007/s11069-017-3047-4
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    Cited by:

    1. Mingjie Ma & Duo Zha & Qing He & Xinghua Yang & Fan Yang & Ali Mamtimin & Xiannian Zheng & Han Sun, 2024. "An Evaluation of the Dust Emission Characteristics of Typical Underlying Surfaces in an Aeolian Region in the Middle Reaches of the Yarlung Zangbo River on the Qinghai–Tibet Plateau," Land, MDPI, vol. 13(8), pages 1-16, July.
    2. Xinghua Yang & Chenglong Zhou & Wen Huo & Fan Yang & Xinchun Liu & Ali Mamtimin, 2019. "A study on the effects of soil moisture, air humidity, and air temperature on wind speed threshold for dust emissions in the Taklimakan Desert," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 97(3), pages 1069-1081, July.

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