地理研究 ›› 1982, Vol. 1 ›› Issue (4): 53-62.doi: 10.11821/yj1982040007

• 研究报告 • 上一篇    下一篇

河床地貌演变研究的计算机方法——河床冲淤计算和地形图绘制

刘书楼1, 洪笑天1, 马绍嘉1, 彭玉水1, 孙力1, 陈宝雯2   

  1. 1. 中国科学院地理研究所;
    2. 中国科学院综合考察委员会
  • 出版日期:1982-12-15 发布日期:1982-12-15

THE APPLICATION OF COMPUTER IN RESEARCH OF RIVER BED AND LANDFORMS——COMPUTE THE SILTATION CONTENT AND LANDFORM MAP DRAWING

Liu Shulou1, Hong Xiaotian1, Ma Shaojia1, Peng Yushui1, Sun Li1, Chen Baowen2   

  1. 1. Institute of Geography, Academia Sinica;
    2. Commission for integrated Survey of Natural Resources, Academia Sinica
  • Online:1982-12-15 Published:1982-12-15

摘要: 本文在建立河床“箱式模型”的基础上,根据河床随机分布地形特征点的地形参数,研究推导了计算河床网格分割结点高程的双线性插补加权平均法;按照长方体、断面、柱体分割计算河床沙体体积,求其冲淤量和根据结点的地形参数,建立河床地形数字模型,自动绘制等高线地形图的计算方法.并根据本文方法,对实验室人工塑造的五次地壳间歇运动形成的河床,进行了冲淤量计算和地形图的自动编绘.

Abstract: Based upon "box model" of river bed, according to the landform parameter of landform characteristics of stochastic distribution of river bed, this paper studied and deduced the calculating method of duplex linear interpolation by weighted average of altitude-divide-joint of river bed net. And also by using calculation method we computed separately the volume of erosion and siltation according to the cuboid, section and column of the river bed, and evaluated the siltation content and the landform parameter according to river bed joint, and established the digital model of river bed landform and finally drew the isohyet landform map automatically. By applying this method, we carried on the calculation of the siltation content and the autodraft of the landform map of the river bed which was formed by five artificial intermittent crustal movements in the laboratory.