Characteristics of Sand-blown Intensity and Spatial Differences in Ebinur Lake Basin

MA Qian; WU Sheng-li; WU Ye; ZHAO Feng

doi:10.13961/j.cnki.stbctb.2014.04.019

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Characteristics of Sand-blown Intensity and Spatial Differences in Ebinur Lake Basin

- Characteristics of Sand-blown Intensity and Spatial Differences in Ebinur Lake Basin
- Bulletin of Soiland Water Conservation Vol. 33, Issue 4, Pages: 21-27(2014)
- 作者机构：
  
  1. 新疆师范大学地理科学与旅游学院,新疆,乌鲁木齐,830054
  2. 新疆干旱区湖泊环境与资源实验室,新疆,乌鲁木齐,830054
  3. 新疆气象信息中心,新疆,乌鲁木齐,830002
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.04.019
  CLC：
- Published：2014
- 稿件说明：
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MA Qian, WU Sheng-li, WU Ye, et al. Characteristics of Sand-blown Intensity and Spatial Differences in Ebinur Lake Basin[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 21-27.
DOI：

MA Qian, WU Sheng-li, WU Ye, et al. Characteristics of Sand-blown Intensity and Spatial Differences in Ebinur Lake Basin[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 21-27. DOI： 10.13961/j.cnki.stbctb.2014.04.019.

摘要

以艾比湖流域内6个国家气象站2005-2011年的气象资料为依据

分析了艾比湖流域的起沙风况特征、输沙势(DP)变化及风沙强度的空间差异。结果表明:(1) 研究区风向以NW和NNW向为主

其频率分别占54.98%和18.31%。(2) 该区起沙风主要发生在4

5和6月

其频率分别占全年的12.48%

14.70%和13.08%。输沙势的季节变化幅度较大

主要集中在春夏两季。(3) 研究区合成输沙势(RDP)及合成输沙方向(RDD)分别为988.86 VU和126.5°(ESE-SE)

属于高风能环境。风向变率指数(RDP/DP)为0.94

属于单风风况特征。(4) 研究区风沙强度表现为高值点是以孤点出现

为阿拉山口

而低值区则是一个面积较为广阔的区域。

Abstract

Sand driving wind characteristics

drift potential(DP) changes and spatial difference of sand strength in Ebinur Lake Basin was analyzed based on the data of six national weather stations during the period from 2005 to 2011. The results are as follows:(1) The wind direction in the study area are NW and NNW

and the occurring frequency were 54.98% and 18.31%

respectively.(2) The threshold wind occurs mainly in April

May and June

the occurring frequency were 12.48%

14.70% and 13.08%

respectively. There are big differences of sand drift potential in defferent seasons

and the drift potential was concentrated in the spring and summer.(3) The variability index is 0.94

It belongs to a single air damper characteristic

resultant drift potential(RDP) and resultant drift direction(RDD) are 988.86 VU and 126.5°(ESE-SE).(4) The wind strength of study area appears a high value point as Alashankou

while the low value point is a wide area.

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references

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