Dissertation > Excellent graduate degree dissertation topics show

The Construction and Application of the Distributed Model Based on Excess Storage-excess Infiltration

Author: ShiZhiMin
Tutor: HuCaiHong; WangJiJun
School: Zhengzhou University
Course: Hydrology and Water Resources
Keywords: Luhun reservoir distributed hydrological model infiltration excesssaturation excess runoff mechanisms extraction of River flood RiskManagement
Type: Master's thesis
Year: 2013
Downloads: 49
Quote: 0
Read: Download Dissertation


Flood disasters is a frequentily, widely and destructive natural disaster. Flood forecasting provides decision-making scientifically for flood regulation and control. Hydrological model as an important method of flood forecasting, has been an important branch of the hydrological science. Distributed hydrological model as an important hydrological model, not only can reflect the spatial distribution of the basin underlying surface, but also can be coupled with climate and meteorological data easily, and therefore it has been one of the hotspot issues.This research is founded on National Natural Science Foundation of China (51079131)"The sensibility research on the hydrologic processes to extreme weather events" and The China Meteorological Administration Special Climate Change "The response of the Hydrological processes to extreme precipitation events in henan province", in this paper. A distributed hydrological model is build, which is a loosely coupled distributed hydrological model for the semiarid subhumid features, based on the infiltration excess and saturation excess runoff mechanisms, unit lines and Muskingum method. The watershed of Luhun reservoir is taken as an example to validate the model. Statistics and analysis on every sub-basin outflow and precipitation has been carried on. The region flood level has been divided, some related suggestions and measures to flood risk management in the region are made.(1) The river network is extracted from DEM data using of ArcGIS software. The area is divided into13sub-basins based on characteristics of watershed topography, land use, soil and vegetation distribution.(2) A loosely coupled distributed-hydrological model, which is taken into account the infiltration excess and saturation excess runoff mode, is built base on the DEM. The model was applied in the watershed of Luhun reservoir, and compared with the empirical model simulation. The results show that the simulation accuracy of distributed-hydrological model is higher than that of the empirical model. Therefore, the simulation results of the distributed-hydrological model can provide guidance on the reservoir for flood control, and the empirical model simulation can be used as a reference.(3) Spatial distribution of rainfall, runoff and flood characteristics of the Luhun reservoir are analyzed, and the flood is divided into five levels. The results show that the flood peak, which is more than1609m3/s, has a big risk, but the flood peak, which is less than1609m3/s, has a little risk. The rainfall center in the upstream of the watershed happen frequently, the others is few. The flood risk management is analyzed, and a few proposals and measures are taken, which is taken into account the characteristics of Luhun reservoir basin.

Related Dissertations

  1. Research on Distributed Hydrological Simulation and Its Application in Xijiang River Basin,P334.92
  2. Research on the Distributed Hydrological Model EasyDHM Applied in the Intake Area in Middle-route of South-to-North Water Diversion,TV12
  3. The Study on Hydrological Simulation by AVSWAT Model in Plain Areas of Hebei Province,P333
  4. Development and Applications of Physically-based Distrituted Forest Hydrological Model,S715
  5. Study on the Relationship between Vegetation and Water Resources Base on Wulanmulun SWAT Model,TV12
  6. Study on Influence on Flood Process by Land Utilization Arrange,S715
  7. Method of Constructing Distributed Hydrological Model Based on Spatial Information Technology,P334.92
  8. Application and Research of Distributed Hydrological Model in Runoff-simulating of Medium-scale Watershed Based on DEM,P334.9
  9. DEM raster and terrain based Distributed Hydrological Model and Its Application,TV12
  10. Distributed Hydrological Model Based on DEM Research and Application,P334.92
  11. Research on Runoff and Sediment of Small Basin in Loess Area Based on DEM,P334.92
  12. Study of Runoff Generation and Concentration of the Typical Watershed on the Loess,P333
  13. Study on the Distributed Rainfall-runoff Modelling of Luanhe Watershed,P334.92
  14. Impact of Precipitation Variability on Hydrological Processes,P333
  15. Climate Change in the Head Regions of the Yellow River and Its Effects on Water Resource,TV211
  16. Distributed Hydrological Simulation Using SWAT in Yellow River Source Region,P334.92
  17. Conceptual hydrological model of storage - based runoff forecast,TV124
  18. Application of distributed hydrological model MIKESHE northern mountainous area of small watershed hydrological response,P334.92
  19. Study on the Relationship between BTOPMC Model Parameters and Physical Basin Features of the Mekong River,P334.92
  20. Establish Distributed Hydrological Model in Nalenggele Drainage Area,P33
  21. Study on the Application of the SWAT Model in the Watershed on Loess Plateau,P334.92

CLC: > Industrial Technology > Hydraulic Engineering > The basic science of water resources project > Engineering and hydrology
© 2012 www.DissertationTopic.Net  Mobile