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You searched for subject:(Groundwater Databases). Showing records 1 – 2 of 2 total matches.

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University of Texas – Austin

1. Strassberg, Gil. A geographic data model for groundwater systems.

Degree: Civil, Architectural, and Environmental Engineering, 2005, University of Texas – Austin

Concepts and object classes of a data model for representing groundwater systems within GIS are presented, expanding the existing Arc Hydro surface water data model. The data model is designed to achieve four goals: representing regional groundwater systems, representing site scale groundwater information, enabling integration of surface water and groundwater information, and facilitating the connection of groundwater simulation models with GIS. Guided by these goals, a set of conceptual classes is identified for representing basic groundwater features, and these concepts are represented in a geodatabase design named the Arc Hydro groundwater data model. ArcGIS tools are developed to work over the data model classes: the Arc Hydro groundwater toolbar is a set of ArcScene tools for creating three-dimensional features such as stratigraphy representations, cross sections, and volume models. MODFLOW Tools are vi geoprocessing tools for populating the simulation component of the data model, and SQL based tools are used for creating two- and three-dimensional views of groundwater time series. Four case studies are presented to demonstrate the data model classes and tools. The first shows a regional three-dimensional representation of hydrostratigraphy in the North Carolina coastal aquifer system and illustrates the hydrogeology component of the data model and the functionality of the Arc Hydro groundwater toolbar. The second example shows the use of SQL based tools for creating two-dimensional water quality and water level maps in the Ogallala aquifer in Texas, and the third example shows the creation of threedimensional views of temporal information from the MADE site in Mississippi. The fourth case study demonstrates the MODFLOW geoprocessing tools for representing a MODFLOW model of the Barton Springs segment of the Edwards aquifer in Texas. Results of this study outline the main concepts and data structures for representing spatial and temporal groundwater information, and provide a blueprint for creating a geodatabase and storing groundwater data. In addition to the complete data model, a data model framework is defined for outlining the core classes needed for representing groundwater data. Technological advances include the representation, and creation of three-dimensional geographic features, and methods for storing and analyzing two and three-dimensional groundwater time series. Advisors/Committee Members: Maidment, David R. (advisor).

Subjects/Keywords: Aquifers  – Simulation methods; Aquifers  – Databases; Groundwater  – Simulation methods; Groundwater  – Databases; Geodatabases

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Strassberg, G. (2005). A geographic data model for groundwater systems. (Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/2333

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Strassberg, Gil. “A geographic data model for groundwater systems.” 2005. Thesis, University of Texas – Austin. Accessed May 21, 2018. http://hdl.handle.net/2152/2333.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Strassberg, Gil. “A geographic data model for groundwater systems.” 2005. Web. 21 May 2018.

Vancouver:

Strassberg G. A geographic data model for groundwater systems. [Internet] [Thesis]. University of Texas – Austin; 2005. [cited 2018 May 21]. Available from: http://hdl.handle.net/2152/2333.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Strassberg G. A geographic data model for groundwater systems. [Thesis]. University of Texas – Austin; 2005. Available from: http://hdl.handle.net/2152/2333

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Stellenbosch University

2. Hughes, Simon. Geohydrology data model design : South African boreholes.

Degree: Geography and Environmental Studies, 2005, Stellenbosch University

Thesis (MSc (Geography and Environmental Studies)) – University of Stellenbosch, 2005.

Since mechanised borehole drilling began in South Africa in the late 1800s, over 1 100 000 boreholes have been drilled. As the country’s growing population and the perceived impacts of climate change increase pressure on water surface supplies, attention is turning to groundwater to meet the shortfall in water supply. This will mean even more drilling will take place. Until the introduction of the Standard Descriptors for Boreholes, published in 2003, South Africa has not had a set of guidelines for borehole information capture. This document provides a detailed description of the basic information requirements needed to describe and characterise the process of drilling, constructing, developing, managing and monitoring a borehole. However, this document stands alone as a specification with little or no implementation or interpretation to date. Following the development and publishing of the ArcHydro data model for water resource management by the CRWR based at the University of Texas at Austin, there has been a great deal of interest in object-oriented data modelling for natural resource data management. This thesis describes the utilisation of an object oriented data modelling approach using UML CASE tools to design a data model for South African Boreholes, based on the Standard Descriptors for Boreholes. The data model was converted to a geodatabase schema and implemented in ArcGIS.

Advisors/Committee Members: Van Niekerk, Adriaan, University of Stellenbosch. Faculty of Arts and Social Sciences. Dept. of Geography and Environmental Studies..

Subjects/Keywords: Geography and environmental studies; Hydrologic models  – Geographic information systems  – South Africa; Geodatabases  – South Africa; Groundwater  – South Africa  – Databases

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Hughes, S. (2005). Geohydrology data model design : South African boreholes. (Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/2799

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Hughes, Simon. “Geohydrology data model design : South African boreholes.” 2005. Thesis, Stellenbosch University. Accessed May 21, 2018. http://hdl.handle.net/10019.1/2799.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Hughes, Simon. “Geohydrology data model design : South African boreholes.” 2005. Web. 21 May 2018.

Vancouver:

Hughes S. Geohydrology data model design : South African boreholes. [Internet] [Thesis]. Stellenbosch University; 2005. [cited 2018 May 21]. Available from: http://hdl.handle.net/10019.1/2799.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hughes S. Geohydrology data model design : South African boreholes. [Thesis]. Stellenbosch University; 2005. Available from: http://hdl.handle.net/10019.1/2799

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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