منابع مشابه
Generalized maps for erosion and sedimentation simulation
We propose a new approach, based on dynamic animation, to simulate geomorphological events such as erosion, sediment transportation and deposition. It relies on a generalized map representation of different geological layers. The topological evolution of these layers is driven by a set of displacements applied onto the vertices. The topological consistency of the model is guaranteed by a collis...
متن کاملErosion and Sedimentation as Part of the Natural System1
Associate Professor of Geomorphology, Department of Geography, California State University, Northridge. Abstract: Dividing exogenic processes into constituents enables one to distinguish between denudational and depositional environments. This distinction leads to the recognition that the chaparral assemblage occupies a zone which is predominantly denudational. A qualitative assessment of sane ...
متن کاملWeb-Based Database for Highway Erosion and Sedimentation Control Measures
An online database was designed and developed as an Iowa Highway Research Board project by the authors. Our database is intended for identifying and evaluating effective erosion and sedimentation control measures (ESCMs) for use in roadway construction throughout Iowa and elsewhere in the Midwest. The ESCM database is an efficient practical resource to aid state, county, and municipal engineers...
متن کاملEstimation of annual erosion and sedimentation in Babolroud catchment using EPM and Fournier methods
One of the problems of controlling erosion and sedimentation in catchment areas is the lack of statistical data to accurately estimate the amount of sedimentation and erosion. In order to implement soil protection programs and determine methods to reduce sedimentation, it is necessary to estimate the total volume of annual sediment production. The purpose of this study is to estimate the erosio...
متن کاملAnalytical and Numerical Study of a Model of Erosion and Sedimentation
We consider the following problem, arising within a geological model of sedimentationerosion: For a given vector field g and a given nonnegative function F defined on a oneor twodimensional domain Ω, find a vector field under the form g̃ = ug, with 0 ≤ u(x) ≤ 1 for a.e. x ∈ Ω, such that divg̃ + F ≥ 0 and (u − 1)(divg̃ + F ) = 0 in Ω. We first give a weak formulation of this problem, and we prove a...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 1999
ISSN: 0096-3941
DOI: 10.1029/99eo00128