A STUDY ON THE DEVELOPMENT OF TECHNOLOGIES FOR THE MAINTENANCE AND MANAGEMENT OF RIVERS IN CONNECTION WITH RIMGIS (River Information Management (GIS) in KOREA)

摘要

This study has focused on the development of maintenance and management technologies by using related data through the analysis of changes for river beds, while managing such dynamically fluctuating data for river beds by using LiDAR and high-resolution images. The development of such technologies is for the improvement of utility for the field of river maintenance and management, and the advancement of maintenance works for rivers. By using a detailed topographic map for rivers, which has been made with LiDAR and high-resolution images, it has been possible to informationalize the data for river beds and banks before putting such information in RIMGIS DB. Also, the monitoring technology required for the establishment of the river maintenance and management system in connection with RIMGIS, while minimizing the impact of the changes for river beds. By supplementing the functions and data-structure of RIMGIS containing the topographic information and the maintenance and management information regarding rivers, it has been possible to maintain and manage rivers in real time. Also, it has been possible to provide the information for river beds and sections in a river to secure the cross-sectional area of flow according to the changes for river beds. Through such a process, the technology to supplement RIMGIS has been developed to maintain the functions of a river. By utilizing such maintenance and management technologies as basic technologies, it will be possible to maximize the utility of the field of river maintenance and management under the River Information Management Geographic Information System (RIMGIS) in regard to the national river management data requiring constant improvement of functions and execution of maintenance and management works by considering the 2-dimensional line-based information with lack of accuracy and variety and a low level of utility.