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A 3D geoscience information system framework

Abstract : Two-dimensional geographical information systems are extensively used in the geosciences to create and analyse maps. However, these systems are unable to represent the Earth 's subsurface in three spatial dimensions. The objective of this thesis is to overcome this deficiency and to provide a general framework for a 3d geoscience information system (GIS) and to contribute to the public discussion about the development of an infrastructure for geological observation data, 3d geomodels, and geoservices. Following the objective, the requirements for a 3d GIS are analysed. According to the requirements, new geologically sensible query functionality for geometrical, topological and geological properties has been developed and the integration of 3d geological modeling and data management system components in a generic framework bas been accomplished. The 3d geoscience information system framework presented here is characterized by the following features: ? Storage of geological observation data and geomodels in a XML-database server. According to a new data model, geological observation data can be referenced by a set of geomodels. ? Functionality for querying observation data and 3d geomodels based on their 3d geometrical, topological, material, and geological properties were developed and implemented as plug-in for a 3d geomodeling user application. ? For database queries, the standard XML query language bas been extended with 3d spatial operators. The spatial database query operations are computed using a XML application server which has been developed for this specific purpose. This technology allows sophisticated 3d spatial and geological database queries. Using the developed methods, queries can be answered like: "Select all sandstone horizons which are intersected by the faults A,B. ". This request contains a topological and a geological material parameter. The combination of queries with other GIS methods, like visual and statistical analysis, allows geoscientific investigations in a novel 3d GIS environment. More generally, a 3d GIS enables geologists to read and understand a 3d digital geomodel analogously as they read a conventional 2d geological map.
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Submitted on : Thursday, March 29, 2018 - 12:35:49 PM
Last modification on : Monday, March 15, 2021 - 10:56:03 AM


  • HAL Id : tel-01750010, version 1


Marcus Apel. A 3D geoscience information system framework. Sciences de la Terre. Institut National Polytechnique de Lorraine, 2004. Français. ⟨NNT : 2004INPL122N⟩. ⟨tel-01750010⟩



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