نتایج جستجو برای: gully erosion

تعداد نتایج: 30968  

2017
JAMES L. DICKSON JAMES W. HEAD JOSEPH S. LEVY GARETH A. MORGAN DAVID R. MARCHANT

We report on a decade of fieldwork designed to determine the conditions required for erosion of Mars-like gully channels in the McMurdo Dry Valleys (MDV) of Antarctica. We have outlined the major factors in the morphological evolution of gullies in the Inland Mixed Zone of the MDV: (1) the distribution of ice sources; (2) the temporal aspects of ice melting; and (3) the relative significance of...

2009
S. C. Schon J. W. Head C. I. Fassett

Introduction [1]: Since their discovery, a variety of formation hypotheses have been proposed to explain the diversity of gully observations. These hypotheses can be divided into three broad categories: entirely dry mechanisms [2,3], wet mechanisms invoking groundwater release [4,5], and wet mechanisms invoking surficial meltwater [6,7,8]. It has been difficult to differentiate between these hy...

A.V. Gusarov

This paper uses the results of river suspended sediment flux (SSF) analysis to propose a new hydrological method for quantitatively estimating the river bed and drainage basin (sheet erosion, rill and gully erosion) components of total erosion intensity in river basins. The suggested method is based on the establishment of the functional power connection between mean monthly water discharges (W...

Journal: :Remote Sensing 2021

Gully erosion is one of the most prominent natural denudation processes Mediterranean. It causes significant soil degradation and sediment yield. Most traditional field methods for measurement erosion-induced spatio-temporal changes are time labor consuming, while their accuracy precision highly influenced by various factors. The main research question this study was how approach sampling can b...

Journal: :Proceedings of the International Association of Hydrological Sciences 2015

Journal: :International Journal of Current Research and Academic Review 2018

Journal: :Geocarto International 2022

Sample point based spatial model derived from Machine Learning (ML) algorithms often generalizes the pattern of an event. The present study has tried to highlight how far it is acceptable and can replace with pixel modeling? presented a comparative view sample modeling gully erosion susceptibility upper Mayurakshi basin assess predictabilities. Random forest (RF), Support Vector (SVM), (ADB) ha...

Journal: :International Journal of Environment, Agriculture and Biotechnology 2018

Journal: :International Journal of Environment, Agriculture and Biotechnology 2017

Journal: :Land 2021

Gullies are sources and reservoirs of sediments perform as efficient transfers runoff sediments. In recent years, several techniques technologies emerged to facilitate monitoring gully dynamics at unprecedented spatial temporal resolutions. Here we present a detailed study valley-bottom in Mediterranean rangeland with savannah-like vegetation cover that was partially restored 2017. Restoration ...

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