Arcgis Geology And Hydrogeology英文电子书.pdf

Exercise 6: Groundwater GIS in Water Resources Fall 2004 Prepared by Gil Strassberg, David R. Maidment, and Suzanne Pierce CENTER FOR RESEARCH IN WATER RESOURCES UNIVERSITY OF TEXAS AT AUSTIN Contents CONTENTS 1 PURPOSE 1 COMPUTER AND DATA REQUIREMENTS 2 DATA LOCATION AND DESCRIPTION: 2 EXPLORING GEOLOGIC AND HYDROGEOLOGIC DATA 2 GROUNDWATER ANALYSIS 8 CREATING A POTENTIOMETRIC SURFACE FOR THE EDWARDS AQUIFER: 8 COMPARING THE PIEZOMETRIC SURFACE WITH THE DEM: 14 INTRODUCTION TO ARCSCENE AND APPLYING THE ARC HYDRO GROUNDWATER TOOLS 19 GETTING FAMILIAR WITH ARCSCENE: 19 ARC HYDRO GROUNDWATER TOOLBAR: 24 CREATING A GEOVOLUME OF THE SAN MARCOS RIVER BASIN 27 CREATING BORELINES FROM WELLS: 31 CREATING GEOSECTIONS FROM THE BORELINES36 CREATING A GEOVOLUME FROM THE BORELINES:38 SUMMARY OF ITEMS TO BE TURNED IN 42 ACKNOWLEDGMENTS 42 Purpose The purpose of this exercise is to introduce the use of GIS in groundwater studies. The users will perform basic groundwater tasks such as viewing aquifers and well locations, creating a potentiometric surface for the Edwards aquifer, and using the groundwater analysis tools in ArcGIS. Users will also be introduced to digital Hydrogeologic resources. The second part of the exercise will introduce the Arc Hydro groundwater tools, developed at CRWR. In this part users will construct 3D models of the subsurface within ArcScene and visualize subsurface information. Computer and Data Requirements To carry out this exercise, you need to have a computer, which runs the ArcInfo version of ArcGIS. The data are provided at, /prof/maidment/gi