Results 21 to 30 of about 47,667 (263)

Bifurcation dynamics of natural drainage networks [PDF]

open access: yesPhilosophical 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

GEOMORPHOLOGIC ANALYSIS OF DRAINAGE NETWORKS ON MARS [PDF]

open access: yesActa Geographica Debrecina. Landscape & Environment Series, 2012
Altogether 327 valleys and their 314 cross-sectional profiles were analyzed on Mars, including width, depth, length, eroded volume, drainage and spatial density, as well as the network structure.According to this systematic analysis, five possible ...
KERESZTURI ÁKOS
doaj  

Scaling Limit for a Drainage Network Model [PDF]

open access: yesJournal of Applied Probability, 2009
We consider the two-dimensional version of a drainage network model introduced in Gangopadhyay, Roy and Sarkar (2004), and show that the appropriately rescaled family of its paths converges in distribution to the Brownian web. We do so by verifying the convergence criteria proposed in Fontes, Isopi, Newman and Ravishankar (2002).
Coletti, C. F.   +2 more
openaire   +2 more sources

Efficient Priority-Flood depression filling in raster digital elevation models

open access: yesInternational 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

THE CONFLUENCE RATIO OF THE TRANSYLVANIAN BASIN RIVERS [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2014
There are many possibilities to assess the hydrological and geomorphological evolution of a territory. Among them, one remarks the confluence ratio of the rivers belonging to different catchment areas. The values of this indicator may provide information
ROŞIAN GH.   +7 more
doaj  

Influence of outfitting wharf project at the entrance of tidal river network on water diversion and drainage

open access: yesShuili Shuiyun Gongcheng Xuebao, 2023
Compared with inland areas, the urban tidal river network faces greater pressure in terms of flood and waterlog control and water environment protection.
GU Zhenghua   +4 more
doaj   +1 more source

Hydrological Response to ~30 years of Agricultural Surface Water Management

open access: yesLand, 2017
Amongst human practices, agricultural surface-water management systems represent some of the largest integrated engineering works that shaped floodplains during history, directly or indirectly affecting the landscape.
Giulia Sofia, Paolo Tarolli
doaj   +1 more source

Behavior of a Fully-Looped Drainage Network and the Corresponding Dendritic Networks [PDF]

open access: yesWater, 2015
Hydraulic and hydrologic analysis in urban catchments is typically accompanied by a number of uncertainties, such as a lack of required information for modeling purposes or complex loops inside a drainage network. In this article, Gibbs’ stochastic network model is utilized in order to achieve a dendritic network that corresponds to a fully looped ...
Yongwon Seo, Young-Ho Seo, Young-Oh Kim
openaire   +2 more sources

The Use of Photogrammetry to Construct Time Series of Vegetation Permeability to Water and Seed Transport in Agricultural Waterways

open access: yesRemote Sensing, 2018
Terrestrial vegetation has numerous positive effects on the main regulating services of agricultural channels, such as seed retention, pollutant mitigation, bank stabilization, and sedimentation, and this vegetation acts as a porous medium for the flow ...
Fabrice Vinatier   +5 more
doaj   +1 more source

Remote sensing and sig contribution for the identification of the fracturation influence on the drainage network architecture in the High Ziz River basin, Central High Atlas, Morocco

open access: yesLimnological Review, 2019
This study aims to contribute to a better estimation of the density of fractures likely to favour the drainage of surface water in the High Ziz River (HZR) basin.
Diani Khadija   +5 more
doaj   +1 more source

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