30 results about "Watershed scale" patented technology

The invention discloses a watershed scale soil moisture remote sensing data assimilation method belonging to the field of remote sensing data assimilation methods. The method comprises the following steps of: (A) preparing for data; (B) constructing a watershed soil moisture assimilation observation operator; (C) constructing a distributed hydrologic model assimilation platform; and (D) constructing a watershed soil moisture remote sensing data assimilation scheme based on a distributed hydrologic model and particle filter assimilation algorithm. In the invention, a novel distributed watershed hydrologic model which is capable of effectively fusing microwave remote sensing information and has a certain physical basis is constructed by utilizing soil water hydrodynamic method and combining a saturation excess runoff principle, a hydrological simulation detection result of the Yi River watershed in a typical semi-arid and semi-humid area shows that the novel distributed watershed hydrologic model has a better daily runoff simulation effect and stable surface soil moisture simulation precision and can be used as a watershed soil moisture remote sensing data assimilation model operator. By using the watershed scale soil moisture remote sensing data assimilation method, a watershed scale soil moisture assimilation data set in temporal and spatial distribution can be acquired effectively.

The invention discloses a multi-center watershed water environment distributed cluster management system and method. The system creates a system operation management center, a numerical simulation center, a data center, a decision command center and a client-side service center, all of which are of different management levels and function levels. By means of division and cooperation of the different centers, computer resources of centers of units of the watershed water environment can be integrated, a resource pool is formed, services are provided according to demands of functions of the centers of the units of the watershed, the problems, such as waiting time losses, the low watershed scale simulation computing speed, low efficiency and resource waste for repeated construction, of a traditional watershed model system due to serial computation can be solved, the watershed water environment simulation efficiency is greatly improved, hardware resources and data resources of the whole watershed are integrated, water environment management, current situation evaluation, future trend prediction and sudden event emergence simulation and decision support of the whole watershed are achieved, and safety of the watershed water environment is guaranteed.

The invention relates to a watershed-scale hydrological nonconformity diagnosis method. The method includes the following steps that: a watershed non-uniform indicator system is built; nonconformity diagnosis is performed on single indicator sequences; and watershed hydrological nonconformity quantitative diagnosis is performed. According to the method, the indicator sequences representing the developmental characteristics of hydrological processes are screened out, and the indicator sequences are classified and combined according to an indicator-element-target level; whether the sequences are in trend variation states or jump variation states can be judged on the whole; after nonconformity diagnosis is performed on each single indicator sequence, comprehensive nonconformity diagnosis is performed on each indicator, and therefore, defects in corresponding aspects in the prior art can be avoided; and nonconformity judgment is performed on the plurality of indicators with the same standard, and therefore, theoretical support can be provided for a plurality of kinds of application, such as water resource diagnosis, reservoir dispatching, water conservancy engineering design, flood control and fight against drought.