Rain falls on land, runs into rivers and returns to seas, In this water circulation, rainwater is used as water resources necessary for our livelihood. For keeping our good and comfortable life, it is indispensable and mandatory to maintain this water circulation safely and stably, and to use water resources effectively taking environmental conservation into consideration
Eventually, nature causes disasters such as floods and droughts. To protect our life and property against such disasters and provide people with safety and security, it is very important to manage rivers and dams appropriately.
To manage and utilize precious water resources and protect your national land and the life and property of your nation, various types of management systems including hydrological observation, information acquisition and information dissemination which enable timely and appropriate operation and management of river and dam are required..