Windward slope

Response of Morphology and Deposits to Surface Flow on Windward Slope of Barchan Dune

新月形沙丘迎风坡形态及沉积物对表面气流的响应

When the horizontal airflow skips over the mountain , vertical airflow will rise at windward slope and drop at leeward slope .

在高空，受大地形的影响，水平气流越山而过，垂直气流在迎风坡上升，在背风坡下降。

A Preliminary Study on Variation in Wind Velocity and Sediment Transport Rate on Windward Slope of Barchan Dune

乌兰布和沙漠新月形沙丘迎风坡风速变化的初步研究

Grain size analysis also indicates that grain size characteristics are mainly influenced by intensity of erosion or deposition and morphology of windward slope .

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。

The result shows that the roughness of experimental plot is 6.17 cm , which is higher than clear sand land in windward slope with 5.37 cm ;

结果表明，沙蓬试验地的粗糙度为6.17cm，比迎风面空旷沙地高出5.37cm；

The hail fall of the hail cloud which domain of the initial potential temperature perturbation is located in lee slope is 6 times as large as in windward slope .

当初始位温扰动在背风坡时冰雹云的降雹量约为当初始位温扰动在迎风坡时冰雹云降雹量的6倍。

The coarse particle size composition at the bottom of windward slope was determined by that the fine sand was carried away by the wind erosion and only coarse component was left .

迎风坡坡脚粒度成分较粗，这是在风力侵蚀作用下细小砂粒被风力搬运带走、剩下了较粗粒的成分决定的。

And , small orographic highs and enhanced rainfall caused by climbing airflow on the windward slope of main mountains of these islands are a result of effects of Zhoushan Islands .

同时，地形引起的气流爬坡作用还会使主要岛屿山脉迎风坡的降水增多，并诱生中小尺度的地形高压。

Heavy rainfall occurred in the warm area , and maximum rainfall lay in the windward slope where the width of raindrop size distribution was broadened and sometimes it was bimodal spectrum .

暖区有明显的强降水中心，雨强极大值出现在山区迎风坡，降水雨滴谱谱宽较大，有时滴谱呈双峰型分布；

Thus , the distribution of rainfall can be affected through the jet introducing by topographic forcing . In addition , rainfall is almost distributed in mountain area , and performs the precipitation in the windward slope .

所以，地形强迫可以通过对急流这一触发条件来影响台风降水的分布。此外，台风降雨的落区主要是山区，降水形式是迎风坡降水的特征。

In case of uni-form slope inclination , the precipitation on windward slope increases at first and then decreases in general , there appears a maximum precipitation height ( hM ) and the drier the climate , the greater the hM will be .

在地形坡度均一的情况下，向风面降水的高度分布一般是先增后减，有一最大降水高度hM出现，且气候愈干燥，hM愈高。

The variety number increased by one grade and density increased by 15 % ; the species abundance index increased by 228 % and the evenness index increased by 22.8 % . In the middle part of windward slope of sand dunes , the community height increased by 453.7 % ;

迎风坡下部群落高度增加87.1%，产草量增加13%，多度提高一个等级，密度增加15%，物种丰富度指数提高228%，均匀度指数提高22.8%；

So this theoretical model was considered practicable and dependable . 2 . The simulation result of correction factor for aspect could finely describe topographic characteristics of windward slopes and leeward slope .

该理论模型用于降水量背景场的估算是可行的，计算结果可靠。2、坡向修正因子模拟结果可以很好的表征迎风坡、背风坡的地形特征。

Micro-topography is the main factor in determining the spatial variability of soil moisture of the surface and subsurface at leeward slope and subsurface at windward , but the influence of environment factors such as wind conditions would be visible in surface of windward slope .

地形是决定背风坡表层和亚表层以及迎风坡亚表层土壤水分空间分布的主要因素，而迎风坡表层土壤水分变化受风力等环境因子的影响较大。