基于CA模型模拟黄河口海岸线演变

Simulate the Coastline Change in the Yellow River Estuary based on CA model

以黄河三角洲清水沟汊河的入海口为研究区域,以Landsat影像为主要数据源展开研究。利用ERDAS对遥感影像进行几何精校正、配准、裁减、分类等操作,再通过ArcGIS进行编辑,进而提取海岸线。通过分析影响海岸线变化的主要因素,建立元胞自动机模型(CA模型),基于这个模型,CJHJ结合ArcEngine9.2开发海岸线演变模拟系统。在该系统上结合黄河来沙数据,进行模型训练,得到一组参数,利用这组参数模拟海岸线的演变过程,得到了较好的模拟效果。

The study area is the estuary of Chingshuikou braided river in the Yellow River Delta and the main data source is two sets of Landsat data.In this paper,we used ERDAS to deal with the remote sensing images,such as precision geometric correction,registration,classification and so on.By analyzing the main factors affecting shoreline changes,we built the cellular automation model（CA model）,and based on this model,we developed the simulation system of shoreline evolution by using CJHJ and ArcEngine9.2.With the sediment data,we can take a simulation training to get a set of parameters,and then we can use this set of parameters to simulate the evolution of the coastline.