EFDC (environmental fluid dynamics code) model integration method for the Three Gorges reservoir area

A technology of the Three Gorges Reservoir area and an integrated method, which is applied in the field of information technology, can solve the problems of high model use threshold, difficulty in adapting to multi-user synchronous online multi-scheme synchronous fast simulation and comparative analysis, heavy workload, etc., to achieve enhanced prediction and simulation ability, efficient water quality prediction and forecasting, and the effect of lowering the threshold of use

Active Publication Date: 2018-07-06
重庆市环境保护信息中心
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Problems solved by technology

[0005] However, although the integration of water quality models and information systems represented by EFDC has been extensively explored at home and abroad, there are still many bottlenecks: ① From the perspective of model field application, the local domestication of the model is complex;
Different rivers have their own river grids and boundary conditions. The diffusion model of river pollution requires targeted customization, research and development, calibration, debugging and domestication to meet the simulation requirements of specific rivers. ② In terms of promotion and application, the threshold for using the model is high
The model involves a wide range of data, and the data cannot be collected in a short period of time. Moreover, the model has many parameters and complex settings. The workload of model testing and parameter sensitivity analysis is heavy.
③ From the perspective of software integration, the coupling between the system and the model is low
The data structure of the system and the model is different, the synchronization efficiency of heterogeneous data is not high, and data exchange is difficult; the interface of the model is not unified, and the commu

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  • EFDC (environmental fluid dynamics code) model integration method for the Three Gorges reservoir area
  • EFDC (environmental fluid dynamics code) model integration method for the Three Gorges reservoir area
  • EFDC (environmental fluid dynamics code) model integration method for the Three Gorges reservoir area

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Embodiment Construction

[0036] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] The Three Gorges Reservoir is an important ecological barrier in the Yangtze River Basin and a national strategic reserve of water resources. It is an extra-large reservoir in my country. The Three Gorges Reservoir area is located at the junction of the Sichuan Basin and the plain of the middle and lower reaches of the Yangtze River. It spans the canyons in the mountains of central Hubei and the ridges and valleys of East Sichuan. It has a humid subtropical monsoon climate. Above, the scope of the reservoir area includes a total of 26 counties in Chongqing and Hubei Province, with a total area of ​​about 7.9×10 4 km 2 , the reservoir area is 1084km 2 , when the Three Gorges Reservoir operates at a high water level of 175m, the total storage capacity is about 393×10 8 m 3 . The Chongqing section of the Three Gorges Reservoir area...

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Abstract

The invention relates to an EFDC (environmental fluid dynamics code) model integration method for the Three Gorges reservoir area and belongs to the field of informationization. The method comprises the steps of: packaging a model module based on the EFDC so that a model file is controllable, wherein the model module includes an EFDC input file, an output file and a master control file; providinginterface services for corresponding model calling functions; for meeting the need for the use of an actual model of a water quality safety evaluation and warning system of the Three Gorges reservoirarea, performing integrating to achieve preprocessing and postprocessing of model data in an information system, calling model interface services to transmit input parameters to the model, activatingcomputing, extracting computing results, and storing the results in a model database; after integrating, allowing the model database to become a core database of the information system and to be integrated to basic space data, special-purpose space data and special-purpose data, so that GIS-based (geographic information system-based) visual expression of model examples is achieved.

Description

technical field [0001] The invention belongs to the field of informatization, and relates to a method for integrating EFDC models in the Three Gorges reservoir area. Background technique [0002] Since Streeter and Phelps proposed the BOD-DO water quality model in 1925, both basic and applied research on water quality mathematical models have made great progress. Especially since the 1970s, the water quality control equations established through mathematical models can be more Detailed description of the transport and transformation of pollutants in water bodies, such as the popular WASP model, QUAL model, QUASAR model, MIKE model and EFDC model. [0003] Among them, the EFDC model is funded by the U.S. Environmental Protection Agency and developed by Hamrick of the Virginia Institute of Oceanography. It integrates the hydrodynamic module, the sediment module, the pollutant transport module and the water quality module. , 1D, 2D and 3D numerical simulation of bays, wetland ...

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Application Information

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IPC IPC(8): G06F17/50G06F17/30G06Q10/04
CPCG06Q10/04G06F16/29G06F30/20Y02A20/152
Inventor 刘晓刘明君余游刘海涵张艳军曾可王陆潇黄孝艳
Owner 重庆市环境保护信息中心
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