定义 中文名称: 沙丘形态 英文名称: dune morphology 定义: 由于风况的不同,风力作用下沙粒堆积而成的沙丘形态也不同,沙丘形态类型主要有:新月形沙丘及沙丘链、纵向沙丘、格状沙丘、金字塔沙丘、蜂窝状沙丘、抛物线形沙
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The discussion of the extraction method of dune morphology factors by DEM and study of feasibility of the dynamic dune morphology, widen the G1S technology applications field.
2、探讨了基于DEM的沙丘基本地形因子、地面曲率、典型剖面、示量特征值等的提取方法和沙丘形态动态研究的可行性,拓宽了G1S技术的应用领域。
参考来源 - 基于DEM的伊犁塔克尔莫乎尔沙漠抛物线沙丘形态及其成因研究·2,447,543篇论文数据,部分数据来源于NoteExpress
沙丘形态参数经常偏离统计的波长-波高曲线,数值实验结果显示,这与推移质输运率有关。
There tends to be deviations of the height-length data points from statistical H-L curves; numerical experiments demonstrate that such deviations may be associated with the bedload transport rate.
粒度分析也表明,沙丘迎风坡表面粒度特征主要取决于表面蚀积状况,同断面形态表现出密切的相关性。
Grain size analysis also indicates that grain size characteristics are mainly influenced by intensity of erosion or deposition and morphology of windward slope.
通过风洞实验的方法,针对不同形态的6组横向沙丘模型,采用粒子图像测速系统,测量了模型沙丘周围气流水平速度和垂直速度的变化规律。
In this paper, the variations in the horizontal and vertical velocities over 6 different transverse dune models are investigated in a wind tunnel by applying the particle image velocimetry (PIV).
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