10 November 2007 Development of flood routing simulation system of digital Qingjiang based on integrated spatial information technology
Author Affiliations +
Proceedings Volume 6795, Second International Conference on Space Information Technology; 679548 (2007) https://doi.org/10.1117/12.774560
Event: Second International Conference on Spatial Information Technology, 2007, Wuhan, China
Abstract
Based on digital technology, flood routing simulation system development is an important component of "digital catchment". Taking QingJiang catchment as a pilot case, in-depth analysis on informatization of Qingjiang catchment management being the basis, aiming at catchment data's multi-source, - dimension, -element, -subject, -layer and -class feature, the study brings the design thought and method of "subject-point-source database" (SPSD) to design system structure in order to realize the unified management of catchments data in great quantity. Using the thought of integrated spatial information technology for reference, integrating hierarchical structure development model of digital catchment is established. The model is general framework of the flood routing simulation system analysis, design and realization. In order to satisfy the demands of flood routing three-dimensional simulation system, the object-oriented spatial data model are designed. We can analyze space-time self-adapting relation between flood routing and catchments topography, express grid data of terrain by using non-directed graph, apply breadth first search arithmetic, set up search method for the purpose of dynamically searching stream channel on the basis of simulated three-dimensional terrain. The system prototype is therefore realized. Simulation results have demonstrated that the proposed approach is feasible and effective in the application.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yanbin Yuan, Yanbin Yuan, You Zhou, You Zhou, Yaqiong Zhu, Yaqiong Zhu, Xiaohui Yuan, Xiaohui Yuan, N. R. Sælthun, N. R. Sælthun, } "Development of flood routing simulation system of digital Qingjiang based on integrated spatial information technology", Proc. SPIE 6795, Second International Conference on Space Information Technology, 679548 (10 November 2007); doi: 10.1117/12.774560; https://doi.org/10.1117/12.774560
PROCEEDINGS
6 PAGES


SHARE
Back to Top