Dong Zhao's research while affiliated with North China University of Water Conservancy and Electric Power and other places

Publications (10)

Article
In order to improve the accuracy of hydrological models for runoff prediction and to solve the problem of disappearing time series data break or data fluctuation due to the extension of time series. Monthly runoff data from 1996 to 2015 at the Cuntan hydrological station in the upper reaches of the Yangtze River are used as the basis to develop the...
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Industrial water consumption is a major component of the total regional water consumption. Accurate and scientific prediction of industrial water consumption is an essential guide to the rational use of natural resources. In this paper, we proposed a combined model of CEEMD (collective empirical modal decomposition) and ARIMA (autoregressive integr...
Article
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Groundwater resources play an important role in life, but the lack of effective management of groundwater resources has led to a regional decline in groundwater levels. How to curb the over-exploitation of groundwater and realize the sustainable use of groundwater resources has become an important issue for ecological environmental protection. Ther...
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The improvement of groundwater burial depth prediction accuracy is an important guiding significance for the development and management of groundwater resources. Groundwater burial depth sequence has the characteristics of uncertainty and nonlinearity. Variational mode decomposition (VMD) has a powerful advantage in dealing with nonlinearity. Wavel...
Article
River-crossing bridge engineering will change the hydraulic elements of the river and affect the stability of the river regime. The distance between the bridge piers is one of the most significant influencing factors of the river flow regime. Analyzing the impact of its changes on river flow through numerical simulation methods has significant guid...
Article
The analysis of annual precipitation evolution characteristics is of great value and significance for revealing the spatial and temporal variation patterns of regional precipitation, water resources development and utilization, short-term climate, drought, flood disaster prediction, etc. The Mann-Kendall (MK) mutation test, cumulative distance leve...
Article
Rainfall prediction is a very important guideline for water resources management as well as ecological protection, and its changes are the result of multiple factors with obvious uncertainties and nonlinearities. Based on the advantages of Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN) non-smooth signal decomposition,...
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The simulation of precipitation changes can provide references for the prediction and prevention of flood disasters, and has guiding significance for the comprehensive utilization of regional water resources. Precipitation forecasting is difficult due to the randomness and uncertainty of precipitation events. CEEMD can effectively overcome modal al...
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Dengzhou City is the first ecological water recharge city after the commissioning of the South-North Water Diversion Project. A study on the ecological service value of Dengzhou City and its evolutionary characteristics can provide a theoretical basis for the water supply security of the Central Line Project and regional ecological environmental pr...
Article
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Precipitation forecasting is an important guide to the prevention and control of regional droughts and floods, the rational use of water resources and the ecological protection. The precipitation process is extremely complex and is influenced by the intersection of many variables, with significant randomness, uncertainty and non-linearity. Based on...

Citations

... To explore the feasibility of the HPF-GM(1,1)-coupled model (Shahid et al. 2018), relative error (RE) (Shahid et al. 2021), mean relative error (MAPE), root mean square error (RMSE), and Nash efficiency coefficient (NSE) were used as criteria for assessing the accuracy of the model (Esmaeili et al. 2021;Zhang et al. 2021). ...