地形起伏度

随着DEM分辨率的降低，地形起伏度和高程变异系数递增，而沟壑密度和地面粗糙度递减。

As DEM resolution goes down , the relief amplitude and coefficient of variation increases , while gully density and surface roughness decreasing .

汶川地震极重灾区地形起伏度特征及其与生态环境受损关联分析

The Characters of Relief Amplitude in the Severest Disaster Area of Wenchuan Earthquake and Its Association Analysis with the Eco-environmental Damage

利用五种不同分辨率的DEM数据源，得到各个尺度DEM下康定地区地形起伏度的最佳阈值分析窗口及山地分类。

With five different spatial resolution DEM , we obtain the best threshold analysis window of relief degree in Kangding area on various scales and classifications of the mountain .

通过计算地形起伏度和地面粗糙度，分别点绘地形起伏度和地面粗糙度随DEM分辨率变化趋势的曲线图，曲线出现明显拐点时所对应的DEM分辨率即可认为是最佳的DEM分辨率。

By computing topographic and surface roughness , here draw variation tendency of topographic and surface roughness separately with different grid-sizes , the grid-size can be considered to be the best resolution when curve showed a significant turning point .

基于地形起伏度的地貌形态划分研究

A Study of the Geomorphologic Forms Classification Based on Relief

在宏观尺度上，以地形起伏度、地形粗糙度、地形高程变异系数为主。

Relief , roughness and variance coefficient in elevation are main index in macro scale .

初步研究表明，其中地形起伏度是区域水土流失评价的最佳地形指标。

Initial results indicate relief is the best topographic factor in assessment of regional soil and water loss .

城镇空间分布差异大，多数建制镇分布在地形起伏度较低的渭河、藉河、葫芦河、牛头河等河谷川地。

The spatial distribution was large different in these cities and towns , most of them located in the river valley of the Wei river , Xi river , Hulu river , Niutou river , which have lower relief degree of land surface .

汶川地震生态环境破坏严重区地形高程和起伏度分布特点

Distribution of Elevation and Relief Amplitude in the Eco-environment Seriously Damaged Areas of Wenchuan Earthquake

系统总结了DEM基本地形因子的提取算法，并重点对坡长、曲率、地形的起伏度、切割深度和沟壑密度因子提取的原理与算法作了深入的分析；

The author paid more attention also to analyze the principle and algorithm of flow length , curvature , relief , the earth 's surface incision and gully density .

评价的具体方法和结果：1、从地形、水体、植被三个景观构成要素着手，对居住小区园林景观进行评价指标的选定。选出地形起伏度、利用度；

Evaluation method and result appraised : 1 、 From the landscapes integrant element of topography , water , vegetation , carried on the selection of the evaluation index to the architectural landscape of residential quarter .