Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Geostatistical analysis for estimating the spatial variability of hydraulic conductivity in the third confined aquifer of Shanghai City

Shi Xiaoqing1,Jiang Beilei2,Bian Jinyu2,Wei Zixin3,Wang Hanmei3 (1.Department of Hydrosciences,Nanjing University,Nanjing,210093,China; 2. Hydrology and Water Resources Division,Nanjing Hydraulic Research Institute,Nanjing,210029,China; 3. Institute of Geology Survey of Shanghai,Shanghai,200072,China)  
The object of this study is to evaluate the spatial distribution of hydraulic conductivity in the third confined aquifer of Shanghai City. The hydraulic conductivity is considered as a regionalized variable. Then the structure of spatial variation could be established by using the GSLIB software to calculate the theoretical variogram of experimental data for generating the variogram model of spatial directions. After cross validation,ordinary Kriging analysis was provided to expand the spatial variation of hydraulic conductivity and reflect the anisotropic variability in contour map. Results showed that the log of hydraulic conductivity has strongly anisotropic variability and illustrated the minimum variation along the N30°E direction and the maximum variation along the E30°S direction. The anisotropic of topography in such area is controlled by its hydrogeology factor while aquifer was forming.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved