Results 1 to 10 of about 47,694 (262)
Variational analysis of landscape elevation and drainage networks [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020 Landscapes evolve towards surfaces with complex networks of channels and ridges in response to climatic and tectonic forcing. Here, we analyse variational principles giving rise to minimalist models of landscape evolution as a system of partial differential equations that capture the essential dynamics of sediment and water balances.
Milad Hooshyar +2 more
openaire +4 more sources
Efficient Priority-Flood depression filling in raster digital elevation models
International Journal of Digital Earth, 2019 Depressions in raster digital elevation models (DEM) present a challenge for extracting hydrological networks. They are commonly filled before subsequent algorithms are further applied.
Hongqiang Wei, Guiyun Zhou, Suhua Fu
doaj +1 more source
Geographia Polonica, 2023 The Sowie Mountains in the central part of the Sudetes range are an under-researched area in terms of geomorphology, despite their potential representativeness for a large number of terrains within the Bohemian Massif, built of metamorphic bedrock. Apart
Piotr Migoń +2 more
doaj +1 more source
Influência da acurácia de completude na delimitação de áreas de preservação permanente
Confins, 2018 Since 1934 with the "Protective Forests" until 2012 with the "Permanent Preservation Areas", the Brazilian Forest Code foresees the creation of areas destined to the preservation of natural resources.
Mayara Soares de Sousa +1 more
doaj +1 more source
A new method of drainage network extraction using SAR radar images: a case study of Djanet (Algeria)
Journal of Taibah University for Science, 2021 An oriented, connected, acyclic graph can be used to represent a hydraulic network. We can consider the network as a set of arcs and nodes. Our research work entails extracting a drainage network from satellite images by preprocessing the data to have ...
Zineb Nougrara, Kamel Hachemi
doaj +1 more source
Research on Stray Current Distribution in a Multitrain Subway System using Finite Element Modeling
International Journal of Electrochemical Science, 2021 Stray current modeling analysis is an important method to study the leakage and distribution of stray current. To study the stray current distribution law under the combined influence of multiple trains in the up and down subway section, this paper takes
Shan Lin +3 more
doaj +1 more source
An Innovative Approach for Drainage Network Sizing [PDF]
Water, 2015 In this paper, a procedure for the optimal design of rural drainage networks is presented and demonstrated. The suggested approach, exploring the potentialities offered by heuristic methods for the solution of complex optimization problems, is based on the use of a Genetic Algorithm (GA), coupled with a steady and uniform flow hydraulic module.
Luca Cozzolino +4 more
openaire +4 more sources
A Drainage Network with Dependence and the Brownian Web
Journal of Statistical Physics, 2022 We study a system of coalescing random walks on the integer lattice $\mathbb{Z}^{d}$ in which the walk is oriented in the $d$-th direction and follows certain specified rules. We first study the geometry of the paths and show that, almost surely, the paths from a graph consisting of just one tree for dimentions $d=2,3$ and infinitely many disjoint ...
Azadeh Parvaneh +2 more
openaire +3 more sources
Prevention of flash floods in the town of Kokrajhar through efficient drainage network design [PDF]
The Holistic Approach to EnvironmentFlash floods are common in the town of Kokrajhar in north-eastern Indian state of Assam. Many areas in the town of Kokrajhar are submerged in water almost every year due to floods during rainy season.
Sagar Basumatary +2 more
doaj +1 more source
Bifurcation dynamics of natural drainage networks [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013 As water erodes a landscape, streams form and channellize the surficial flow. In time, streams become highly ramified networks that can extend over a continent. Here, we combine physical reasoning, mathematical analysis and field observations to understand a basic feature of network growth: the bifurcation of a growing stream.
Petroff, A. P. +3 more
openaire +4 more sources