Relation of vertical flux of particles smaller than 10 mu m to total aeolian horizontal mass flux at Owens Lake
Relation of vertical flux of particles smaller than 10 mu m to total aeolian horizontal mass flux at Owens Lake
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DOI：
10.1029/97jd02252
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发表时间：
1997-11-27
影响因子：
4.4
通讯作者：
Gearhart, EA
中科院分区：
文献类型：
--
作者：
Gillette, DA;Fryrear, DW;Gearhart, EA
小于10 μ m的盐干盐湖表面的颗粒的垂直通量，其中的颗粒尺寸组成被归类为壤土质地，估计高度风侵蚀的网站上的干湖欧文斯在加州的干盐湖。垂直通量与通过垂直于土壤和风的表面的总气载物质的水平通量之比F-a/q（tot）为2.75 x 10（-4）m（-1）。这与砂质土壤的该比例一致，并表明欧文斯湖测试表面物质的结合能和跳跃颗粒尺寸与砂质土壤的结合能和跳跃颗粒尺寸处于同一数量级。在所报道的风蚀事件中，跃移颗粒的水平质量通量q占总水平质量通量q（tot）的51.3%。因此，F-a/q的比值为5.4 × 10（-4）m（-1）。
The vertical flux of particles smaller than 10 mu m for a saline playa surface, the particle size composition of which was classified as loam-textured, was estimated for a highly wind-erodible site on the playa of Owens (dry) Lake in California. The ratio of this vertical flux to the horizontal flux of total airborne material through a surface perpendicular to the soil and to the wind, F-a/q(tot), is 2.75 x 10(-4) m(-1). This is consistent with that ratio for sand-textured soils and suggests that the binding energy and size of saltating particles for the tested surface material at Owens Lake is of the same order as that for sandier soils. The horizontal mass flux of saltating grains, q, in the reported wind erosion event is 51.3% of the total horizontal mass flux q(tot). Therefore the ratio of F-a/q is 5.4 x 10(-4) m(-1).