contour length meaning in English
轮廓长度
伸直长度
Examples
- It is found that the contour length used to determine a should be that normal to the directi on of flow entering into the current cell , rather than that flow out the current cell
计算值应该用与流入单元网格流向垂直的等高线长，据此提出了改进后的ln ( tan )的计算公式。 - Topmodel is based on the calculation of ln ( / tan # ) index and its distribution . in terms of a dem , a is the cumulative upslope area draining through per contour length to a pixel , which reflects the tendency of water to accumulate at any point in the catchment , tan # is the local slope angle of the cell , which reflects the tendency for gravitational forces to move that water downslide
Topmodel是以计算ln ( tan )指数及其分布为基础的。对于栅格dem ，为上坡区域通过单位等高线长汇集到单元网格内的面积，反映径流在流域中任一点的累积趋势， tan为单元网格的坡度，反映重力使径流顺坡移动的趋势。 - 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。