A river network is a typical completely open system formed by interconnected river channels. The interactions between the imports of a river (water and sediment) and the channel will cause the change of the channel patterns. This is actually a feedback between the erosion and the sedimentation states of the channel via an adjustment of the sedimentcarrying capability of the stream. This feedbac...

Soil piping has been attributed as a potential mechanism of instability of embankments and streambanks. Limited field work has been conducted on quantifying and modeling pipeflow and internal erosion processes in the field with either natural or artificially created soil pipes. This research utilized an innovative constant-head trench system to conduct constant-head soil pipe experiments in two...

In recent years, fuzzy logic has been applied successfully to a wide range of problems. This paper shows how it can be utilized in the area of spatial reasoning, in particular geographic information systems. The problem that we address here is the prediction of erosion from factors such as slope, annual precipitation, etc. These factors are represented as maps in a GIS. The maps are converted i...

Century-long studies on the impacts of forest management in North America suggest sediment can cause major reduction on stream water quality. Soil erosion patterns in forest watersheds are patchy and heterogeneous. Therefore, patterns of soil erosion are difficult to model and predict. The objective of this study is to develop a user-friendly management tool for land managers to design forest m...

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Characterizing deepwater reservoirs, their stratigraphy and structure can be highly uncertain due to the extremely limited data. The existence of subseismic scale fine-grained layers can significantly affect oil production of a reservoir, which requires explicitly modelling the uncertainty of these fine-grained fluid barriers. Conventional modeling techniques, such as twopoints statistics, mult...

Terrain modeling has been an important area of computer graphics and GIS for more than 20 years and despite this long history many problems still prevail. One of the important challenges is an interactive physics-based authoring and editing of large scale terrains. Most of published work use a regular grid to represent a terrain elevation data. Due to the simplicity of this representation, visu...