Digital twin watershed construction drives smart water conservancy development

In recent years, the Ministry of Water Resources has attached great importance to the construction of smart water conservancy and digital twin river basins, and has regarded promoting the construction of smart water conservancy as an important path to promote high-quality development of water conservancy in the new stage. It has issued a series of documents to clearly promote the development of digital water conservancy. Roadmap, timetable, task statement, responsibility list and technical specifications for twin watershed construction.

Nowadays, innovative practices in ecological governance that use smart water conservancy to "beautify" the environment and protect green waters and green mountains are flourishing in various places, mainly reflected in the key area of ​​promoting smart water conservancy construction - digital twins Watershed construction.

In layman’s terms, digital twin watershed construction is to project a ‘twin brother’ for a watershed or water conservancy project in the digital world, with monitoring and sensing equipment distributed in rivers, bank slopes, etc. It can 'perceive' real-time dynamics on site just like the human body's neural network. It can also monitor water conditions in real time and clearly grasp the current status, anomalies and trends of watershed hydrology. For example, in the Changma Irrigation District of Shule River in Gansu Province, with the help of the digital twin Shule River platform, it now only takes 10 minutes to inspect the 79.95 kilometers of main canals within the management scope of the irrigation district. The management efficiency has been greatly improved. It can not only predict potential problems, It can preview emergencies such as floods and provide early warning of emergencies through dynamic plan management.

With the help of digital twin watershed construction, water resources management and dispatch that originally relied on work experience have a "smart brain" - work rehearsals are carried out in the digital twin space, and after comprehensive evaluation and analysis Choose the best solution and apply it to actual work. A typical application is to arrange strain monitoring points such as horizontal displacement, vertical displacement, and dam seepage in the construction of digital twin reservoirs to achieve real-time data collection, real-time intelligent judgment, and scientific matching of disposal methods. For example, the digital twin Qingshui River main stream project launched in Guizhou Province in 2021 mainly aims to standardize the technical indicators and achievement standards of the data base, improve data resources, complete the construction of visual models, and complete the water conservancy sensing network through the joint construction of traditional water conservancy monitoring station networks and new water conservancy monitoring networks. , mainly completing the application of river basin flood control business.

There are also topics surrounding the digital twin watershed andThe digital twin Zhijiang Hydrological Station built in line with hydrological modernization and other development requirements will help the Zhijiang Hydrological Station to upgrade its informatization, intelligence, and modernization levels. In this way, hydrologists can keep abreast of various water conditions such as water level, flow velocity, and discharge, which not only supports flood control and dispatching in the river basin, but also provides data support and decision-making basis for the long-term accumulation of basic hydrological data and water resources protection, development and utilization, so as to better understand the situation. Build a secure line of defense during rising and falling waters.

It can be seen that the construction of digital twin watersheds has become the core and key to promoting smart water conservancy construction in various places. However, the construction of digital twin watersheds is a highly innovative and complex project. During the construction process, It is necessary to lay a solid foundation and proceed step by step, fully integrate resources, and mobilize the forces of all parties to contribute to the construction of digital twin river basins.