Lijuan Jia

Research on New Method for Mapping Terrain and Landscape of Complex Environment

Engineering survey often encountered some special complex terrain, for example, large-scale reservoirs, lakes, marshes and wetlands, and so on. Conventional measuring methods cannot accurately detect the data of these environments, because of their special terrain, and difficult to piling, to set up measurement instruments. This paper presents a new methodology formapping terrain and landscape of complex environment. And the mapping process of Heshun town wetland terrain by using this new and simple measuring method was introduced. This new measuring method could be useful for non-professionals to map the terrain and landscape of complex environment.

Research on New Method of Mapping Highland Lake Isobath and Horizontal Surface Distance

Conventional measuring methods cannot accurately detect the depth and the horizontal distance of the lakes, especially when a fixed-point sampling is needed on the surface of the lake, because it is restricted by the natural conditions, capital and human resource. This paper presents a new methodology for measuring the isobath and the horizontal surface distance of a lake. And the mapping process of 8m isobath Yangzonghai Lake near Quan-Yong Point by using this new and simple measuring method was introduced. This new measuring method could be useful for non-professionals to map the isobath lines and to measure the horizontal surface distance of lakes.