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Subsurface Characterization with Solid Models
Publisher: American Society of Civil Engineers
Abstract: Three‐dimensional computer models of construction sites and subsurface stratigraphy are useful for visualization, analysis, and design in geotechnical engineering. A useful technique for creating such models is the geometric ...
Algorithm for Smoothing Triangulated Surfaces
Publisher: American Society of Civil Engineers
Abstract: Surfaces defined by linearly interpolating a two‐dimensional triangulation of a set of scattered data points are frequently used to describe geometry in computer applications. The linear nature of such surfaces simplifies ...
Mesh Generation for Estuarine Flow Modeling
Publisher: American Society of Civil Engineers
Abstract: A finite element computer modeling system called TABS‐2 has been developed by the U.S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. TABS‐2 has been used to model shallow water flow in estuaries. ...
Watershed Delineation with Triangle‐Based Terrain Models
Publisher: American Society of Civil Engineers
Abstract: An algorithm is presented for tracing the path of steepest descent from a given starting point on a terrain model defined by a triangulated irregular network. This algorithm is then extended to solve several problems. The ...
Adaptive Tessellation Method for Creating TINS from GIS Data
Publisher: American Society of Civil Engineers
Abstract: Terrain models created from triangulated irregular networks (TINs) can be used to delineate watershed and subbasin boundaries. However, an important criterion for accurately defining boundaries is that triangle edges of ...
Simple Method for Using Precomputed Hydrologic Models in Flood Forecasting with Uniform Rainfall and Soil Moisture Pattern
Publisher: American Society of Civil Engineers
Abstract: Transforming a weather forecast into a flood hydrograph for a watershed requires a series of steps: (1) gathering and pre-processing data about the current conditions of the watershed, such as soil moisture, snow cover, ...
Algorithm for Precise Drainage‐Basin Delineation
Publisher: American Society of Civil Engineers
Abstract: Computer‐based terrain models have become increasingly popular as a tool for automating much of the geometrical data acquisition necessary for hydrologic analyses. An algorithm is presented that uses triangulated irregular ...