HR: 0800h
AN: SF31A-0721    [Abstracts]
TI: Interface Design For Subsurface Characterization Based on Borehole Data Using ArcGIS and Geo Flow 3D
AU: * Park, H
EM: hpark@snu.ac.kr
AF: Seoul National University, Shinlim-dong, Kwanak-gu, Seoul, 151-744 Korea, Republic of
AU: Jung, J
EM: hamdori@hanmail.net
AF: Seoul National University, Shinlim-dong, Kwanak-gu, Seoul, 151-744 Korea, Republic of
AB: Ground water management system is used for simulation and prediction of the movement of fluid flow under the Earth surface. For simulation of the fluid flow, ground water management system requires input data, such as porosity, hydraulic conductivity and so on. Ground water management system needs reasonable data which should be based on reality. GIS database can offer such kind of information to ground water modeling software. Subsurface characterization process plays very important role in ground water management system because this can provide real input data. The main objective of this study is to develop a GIS application for the ground water management system with which a user can get the borehole information from GIS database, and extract 3D grid data model in order to characterize subsurface using Geo Flow 3D. There are many kinds of field data which can provide information about subsurface. Among them, borehole data was chosen as a main source of input data because borehole data offers much more direct information than others. Borehole data consists of at least more than 2 section information. Each section information has its own properties such as elevation of borehole, diameter of borehole, soil types and so on. In order for a user to get each borehole information, an interface was designed to extract the information of borehole from the GIS database. A user can get borehole information using this interface. A user can search the borehole information based on address and borehole ID, or a user can specify the borehole which a user wants to know by selecting the borehole on the map directly. Once a user select the borehole which a user want to know, a user can search the general borehole information such as recording date, elevation of borehole and so on. A user can also see each section drawn in the interface, and a user can get each section information by just clicking the section a user wants to know. Another interface was designed for the determination of dimension of 3D grid data model because a user also needs to know horizontal and vertical distribution of borehole data for the determination of dimension of 3D grid data model. Once a user decides the dimension of 3D grid data model, a user can build 3D grid data model. Based on the above interface, a user can construct 3D grid data model, and this 3D grid data model can be used for subsurface characterization using Geo Flow 3D.
DE: 1829 Groundwater hydrology
SC: Special Focus: Advances in Data Acquisition, Management, Analysis and Display [SF]
MN: 2004 AGU Fall Meeting