Dissertation > Excellent graduate degree dissertation topics show

Spatial Interpolation of Precipitation in Hanjiang Basin

Author: YuanYanYan
Tutor: YiShanZuo
School: Huazhong University of Science and Technology
Course: Hydraulic Engineering
Keywords: Precipitation Hanjiang Basin GIS Co-kriging Interpolation Method Uncertainty
CLC: P333
Type: Master's thesis
Year: 2013
Downloads: 30
Quote: 0
Read: Download Dissertation


Precipitation is the main entry of hydrological model, whose spatial distribution is themain factor of affecting runoff simulation. Hanjiang River is the largest tributary in theYangtze Basin. There is abundant precipitation, mainly in the summer. The terrain iscomplex and rugged in Hanjiang Basin, so it accelerates the process of collectingrainwater. Because of the amount of serious imbalance between river channel dischargecapacity and flood flow, floods occur frequently.This paper bases on the average daily precipitation data of19meteorological stationsof Hanjiang Basin on August2005, uses the ARCGIS10.0platform, and uses fourinterpolation methods that is the global polynomial interpolation, inverse distanceweighted interpolation, ordinary kriging and co-kriging. I get spatially continuousdistribution of precipitation information in Hanjiang Basin. By comparing, the result ofanalysis is:(1) The average daily rainfall on August2005in space shows obvious gradientthat rainfall increases gradually from west to east. During the process of co-kriginginterpolation, I select the appropriate the number of fitting function, semivariogram model,semivariogram directional angle and step size, altitude. The accurate of result consideringaltitude and precipitable is higher than only considering altitude and only consideringprecipitable. By Comparing with the output of four kinds of interpolation methods, itshows that the accuracy of co-kriging interpolation is better than the other threeinterpolation methods.(2) using different number of meteorological stations, time scalesand interpolation methods, I analyze the uncertainty of the Precipitation Interpolation inHanjiang Basin. The result shows that, the more the number of meteorological stations, theaccurate is higher; the greater the timescales, the uncertainty is smaller; using differentinterpolation methods, the results will be very different.

Related Dissertations

  1. Design and Application of Scope Anti-Shake System,TH743
  2. The Studying of University Students’ Community Management Based on GIS,G647
  3. Lijiang River,RS and GIS - based Soil Erosion Research,S157
  4. Study on the Simulation of Agricultural Non-point Source Pollution in Huaihe River Basin in Henan Provice,X52
  5. Subarea Management of Tobacco Soil Nutrients and Adequate Fertilization Research by Micro Scale,S158
  6. The Load Research and Comprehensive Evaluation on the Agricultural Non-Point Source Pollution in Nantong,X592
  7. Spatial Variation and Site-specific Management Zones of Soil Nutrition in Tobacco-planting Fields of Luzhou Based on GIS and Geostatistics,S158
  8. The Building and Application of Jinqu Basin Soil Series Database of Zhejiang Province,S159.2
  9. Predicting Model of Coal Fired Fly Ash Resistivity,X701.2
  10. The Study of TWC Catalytic Removal NOx from Waste Incineration Flue Gas,O643.36
  11. Uncertainty and metafiction : \,I712.074
  12. Changchun High- temperature low-pressure ridge containing wax reservoir development and technological measures,TE349
  13. Synthesis, Conducting Properties and Applications of BaCe (1-x-y)ZrxSmy O3-α,TQ174.1
  14. Habitat Selection of Egrets Based on GIS Technology,Q958.1
  15. Preparation of Oil-soluble Defoamers and Their Research and Application on the Seed Precipitation from the Sodium Aluminate Liquor,TQ423.95
  16. Analysis on Changs of the Landscape Patten in the Area Based on RS and GIS,P901
  17. Preparation and Properties of ZAO Target,TB383.1
  18. The Application and Research of GPSONE Technology in Logistics Management and Monitoring System,TP277;F252
  19. Research on Fabrication of Sc2O3 Nanopowders and Transparent Ceramics,TQ174.1
  20. Study of Water Resources Carrying Capacity of Pinus Sylvestris Var. Mongolica Fixing Sand Forest at Zhanggutai Town, Based on GIS,P208
  21. Design and Study of Shenyang SCADA System,TU996

CLC: > Astronomy,Earth Sciences > Geophysics > Hydrological Sciences (water sector physics) > Hydrological analysis and calculation
© 2012 www.DissertationTopic.Net  Mobile