汇流面积 meaning in Chinese
hlmj
Examples
- The calculation method of ln ( / tan # ) index widely used is the multiple flow direction algorithm developed by quinn et al . it can been seen that , in the algorithm , the contour length normal to the direction of flow flowing out the current cell is used to determine both a and tan # , and that the calculated total cumulative contributing area of downslide grid cell does not include the area of the current cell
目前普遍使用的计算该地形指数的方法为多流向法。方法中计算和tan用的均是与流出单元网格流向垂直的等高线长。另外计算下坡单元网格累积汇流面积时没有考虑欲计算ln ( tan )值的单元网格的面积，这些是不合理的。 - So a new method ? scale analysis method ( or called fractal analysis method ) is applied to study the flood of jialing river basin . the scaling hypotheses is applied to the relationship of annual maximum flood and drainage area . and basing on the scaling lognormal model with two parameters introduced by smith , a lognormal model with three parameters of flood is introduced to represent the scale effect of drainage area in annual flood peak distributions
在洪水区域分析中一般采用洪水指标法，但该法的基本假定与实际情况存在矛盾，因此本文采用一种新的分析方法? ?标度分析法(或称为分形分析法)来研究洪峰的区域变化，将标度不变性引入年最大洪峰流量? ?汇流面积关系中，并将其用于嘉陵江流域的洪水，另外，本文在smith提出的具有标度性质的二参数对数正态分布模型基础上创造性地提出了三参数对数正态分布模型来表征年最大洪峰流量分布中汇流面积的尺度影响。