Geostatistical method to delineate anomalies of multi-scale spatial variation in hydrogeological changes due to the ChiChi earthquake in the ChouShui River alluvial fan in Taiwan

CCUR > College of Environmental Planning & Bioresources > College of Environmental Design > Department of Landscape Architecture & Graduate Institute of Landscape Architecture > journal articles > Item 987654321/2824

Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/2824

Title:	Geostatistical method to delineate anomalies of multi-scale spatial variation in hydrogeological changes due to the ChiChi earthquake in the ChouShui River alluvial fan in Taiwan
Authors:	Lin YB Tan YC Lin YP Liu CW Hung CJ
Contributors:	景觀系
Keywords:	earthquake hydrogeological changes complete heterotopy geostatistics factorial kriging analysis spatial variation anomaly Taiwan
Date:	2004
Issue Date:	2009-11-23 10:33:23 (UTC+8)
Abstract:	This study uses Ordinary Kriging (OK), Sequential Gaussian Simulation (SGS) and Simulated Annealing Simulation (SAS) to relocate the completely heterotopic dataset from the locations of the Standardized Satellite Oriented Control Point System (SSOCPS) stations to the Groundwater Monitoring Networks (GMNS) stations and factorial kriging to analyze and map relationships among seven variables, including the hydraulic conductivities of three aquifers, the vertical displacements of the ground and groundwater level changes in the wells of three aquifers, and also to delineate the anomalies of multi-scale spatial variation of hydrogeological properties associated with the ChiChi earthquake, measuring 7.3 on the Richter scale, in the ChouShui River alluvial fan in Taiwan. In this study, the anomalies of spatial variation of hydrogeological properties associated with the earthquake are illustrated at micro, local and regional scales of 9, 12 and 36 km, respectively. In the study area, regionalization components associated with variation at local and regional scales are obtained and mapped by factorial kriging. Factorial Kriging Analysis (FKA) also demonstrated that the main effects of the ChiChi earthquake on the spatial variations of groundwater hydrological changes include porous media compression at micro scale, hydrogeological heterogeneousness of the sediments within the aquifer at local scale and the cyclic loading of deviatoric stress at regional scale. Finally, maps of spatial variations of regional components fully depicted all of the anomalies of spatial variation of hydrogeological changes due to the ChiChi earthquake and can be used to identify, confirm and monitor the hydrogeological properties in this study area.
Relation:	ENVIRONMENTAL GEOLOGY Volume: 47 Issue: 1 Pages: 102-118
Appears in Collections:	[Department of Landscape Architecture & Graduate Institute of Landscape Architecture ] journal articles

Files in This Item:

There are no files associated with this item.

Loading...