摘要
以起沙风两种统计量 (Thour与 T10 min)和平均风速的计算以及输沙量的统计计算为例 ,指出在风沙活动的研究中 ,采用 Thour统计量计算出的各种结果会带来一定的偏差 ,这种偏差在风向比较单一的地区更为明显。因此 ,在实际应用中 ,应进行大量的相关分析并对 Thour统计量加以订正 ,使其与实际更为相符合。
Taking two series of the statistical data of the blown sand winds (T 10min and T hour ) as the case study, the results show the different statistical data of the blown sand winds will result in the deviation for the analysis of the blown sands. the data of T hour for the calculation of the sand transport will result in the great error for the regional analysis of the blown sand activities. Those errors are more evident in the regions of single directional wind. So, the relative analyses for the statistical data of the times are necessary, which make it nearer the actual wind regimes.
出处
《干旱区资源与环境》
CSSCI
CSCD
2000年第3期41-45,共5页
Journal of Arid Land Resources and Environment
基金
中科院"百人计划"--风沙物理学和沙波头开放站基金!(编号 2 0 0 0 2 4)
关键词
起沙风时间数
统计分析
统计输沙量
风沙工程
Times of blown sand wind Statistical analysis Sand-transporting volume.