| 塔克拉玛干沙漠腹地风蚀起沙特征观测研究 |
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| 引用本文： | 刘娅楠,钟昕洁,马凯,杨芳芳,仇会民.塔克拉玛干沙漠腹地风蚀起沙特征观测研究[J].新疆气象,2021,15(6):26-30. |
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| 作者姓名： | 刘娅楠 钟昕洁 马凯 杨芳芳 仇会民 |
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| 作者单位： | 巴音郭楞蒙古自治州气象局,巴音郭楞蒙古自治州气象局,巴音郭楞蒙古自治州气象局,巴音郭楞蒙古自治州气象局,巴音郭楞蒙古自治州气象局 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金项目(IDM2019002)；国家自然科学基金青年基金(41905009)；中国沙漠气象科学研究基金(Sqj2018019)。 |
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| 摘 要： | 利用塔克拉玛干沙漠腹地塔中气象站2009-2018年的地面观测资料,细致解析塔中地区的风蚀起沙特征,所得结论如下：(1) 临界起沙风速表现出明显的季节变化特征,夏季＞春季＞秋季＞冬季, 塔中地区的临界起沙风速介于4.47-4.92 m/s,日最大值出现09:00-10:00时。(2) 春夏季是沙尘的多发季节。春、夏季,沙尘水平通量的平均值分别为2638.9 kg/m和3298.9 kg/m,起沙持续时间的平均值分别为291.5 h和336.7 h。(3) 风蚀起沙事件更容易发生在白天, 沙尘水平通的最大值出现在10:00-11:00,起沙持续时间的最大值出现在10:00-13:00。(4)风蚀起沙事件在春季主要集中在偏东方向,在夏季主要集中在偏北方向上。
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| 关 键 词： | 临界起沙风速 沙尘水平通量 沙尘持续时间 塔克拉玛干沙漠。 |
| 收稿时间： | 2021/2/20 0:00:00 |
| 修稿时间： | 2021/3/28 0:00:00 |
Characteristics of sand saltation observed in the hinterland of Taklimakan Desert |
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| LIU Ya-nan,ZHONG Xin-jie,MA Kai,YANG Fang-fang and QIU Hui-min.Characteristics of sand saltation observed in the hinterland of Taklimakan Desert[J].Bimonthly of Xinjiang Meteorology,2021,15(6):26-30. |
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| Authors: | LIU Ya-nan ZHONG Xin-jie MA Kai YANG Fang-fang and QIU Hui-min |
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| Institution: | Bayinguoleng Mongolian Autonomous Prefecture Meterological Administration,Xinjiang,Korla,Bayinguoleng Mongolian Autonomous Prefecture Meterological Administration,Xinjiang,Korla,Bayinguoleng Mongolian Autonomous Prefecture Meterological Administration,Xinjiang,Korla,Bayinguoleng Mongolian Autonomous Prefecture Meterological Administration,Xinjiang,Korla,Bayinguoleng Mongolian Autonomous Prefecture Meterological Administration,Xinjiang,Korla |
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| Abstract: | Based on the surface observation data of Tazhong meteorological station in the hinterland of Taklimakan desert from 2009 to 2018, the characteristics of wind erosion events in Tazhong area are analyzed in detail. The conclusions are as follows: (1) the threshold velocity shows obvious seasonal variation characteristics, summer > spring > autumn > winter. The threshold velocities range from 4.47 to 4.92 m/s in Tazhong area, and the daily maximum appears at 09:00-10:00. (2) It is found that the horizontal dust fluxes and wind erosion events mostly occur in spring and summer, the average horizontal dust flux is 2638.9 kg/m and 3298.9 kg/m respectively, and the average duration of wind erosion events is 291.5 h and 336.7 h respectively. (3) Wind erosion events are more likely to occur in the daytime, the maximum horizontal dust flux appears in 10:00-11:00, and the maximum duration of wind erosion events appears in 10:00-13:00. (4) The Wind erosion events are mainly concentrated in the east in spring and in the north in summer. |
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| Keywords: | Threshold velocity horizontal dust flux duration of wind erosion events Taklimakan desert |
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