地理科学 ›› 1996, Vol. 16 ›› Issue (2): 184-190.doi: 10.13249/j.cnki.sgs.1996.02.184

• 技术方法 • 上一篇    下一篇

计算机辅助绘制流域等流时线

王腊春, 陈晓玲, 都金康, 杨晓轩   

  1. 南京大学海岛与海岸带开发国家试点实验室, 南京210093
  • 收稿日期:1995-03-01 修回日期:1995-06-01 出版日期:1996-03-20 发布日期:1996-03-20
  • 基金资助:
    国家自然科学基金资助项目[49271018]SCIEL.21195112

COMPUTER AID DRAWING OF EQUIVALENT FLOW DURATION CONTOUR

Wang Lachun, Chen Xiaoling, Du Jinkang, Yang Xiaoxuan   

  1. State Pilot Laboratory of Coast and Island Exploitation, Nanjing University, Nanjing 210093
  • Received:1995-03-01 Revised:1995-06-01 Online:1996-03-20 Published:1996-03-20

摘要: 采用地理信息系统方法,对流域的地形地貌特征进行分析,模拟水质点在流域上的运动轨迹,并根据水质点汇流时间与汇流路径、坡度、坡长的关系,建立了流域汇流等流时线模型.经实例验证,效果较好.

Abstract: After analysing the watershed landform with the method of Geography Information System(GIS),the movement of a water particle can be conveniently traced in the process of watershed flow concentration.Its flow concentration time,which is from the starting point to the watershed outlet,is connected with the length and gradient along the flow pathway.According to the method,the flow concentration time of a water particle can be computed,which makes it possible that creates the model of equivalent flow duration contour aided by computer.The simulation method is proved effective by examing Huangshan runoff experiment basin.