نتایج جستجو برای: topographic profile in flood plains

تعداد نتایج: 17017012  

2002
Jim E. O’Connor Myrtle A. Jones Tana L. Haluska

Comparison of historic channel migration rates, modern planform conditions, and overall sediment, wood, and flow conditions and interactions for the Quinault River and Queets River in the western Olympic Peninsula, Washington, reveals decadalto century-scale interactions between gravel-bed channels and forested flood plains in temperate maritime environments. The downstream alluvial portions of...

Knowledge and understanding of changes in forest cover in relation to environmental factors (topography) can be valuable in terms of conservational and protective guidances. The purpose of this study was to identify, quantify and predict deforestation in relation to topographic variables using logistic regression model. The Arasbaran catchments (Naposhtehchay, Ilginehchay and Mardanqumchay) in ...

Journal: :ISPRS Int. J. Geo-Information 2018
Sanjay Kumar Sharma Young-Joo Kwak Rakesh Kumar Bibhash Sarma

In order for the Indian government to maximize Integrated Water Resource Management (IWRM), the Brahmaputra River has played an important role in the undertaking of the Pilot Basin Study (PBS) due to the Brahmaputra River’s annual regional flooding. The selected Kulsi River—a part of Brahmaputra sub-basin—experienced severe floods in 2007 and 2008. In this study, the Rainfall-Runoff-Inundation ...

2012
A. Zahiri A. A. Dehghani

Although many researchers have studied the flow hydraulics in compound channels, there are still many complicated problems in determination of their flow rating curves. Many different methods have been presented for these channels but extending them for all types of compound channels with different geometrical and hydraulic conditions is certainly difficult. In this study, by aid of nearly 400 ...

2016
Diane Saint-Laurent Roxane Paradis Ariane Drouin Jun Xu

This study examines the spatial distribution of the organic carbon found in alluvial soils affected by successive floods. In flood zones, very little is known of the processes associated with the development of soils subjected to frequent flooding, in particular with respect to the accumulation of litter and organic carbon concentrations. The aim of this study is to better understand the distri...

2012
S. Narayan S. Hanson R. J. Nicholls

Coastal flooding is a problem of increasing relevance in low-lying coastal regions worldwide. In addition to the anticipated increase in likelihood and magnitude of coastal floods due to climate change, there is rapid growth in coastal assets and infrastructure. Sustainable and integrated coastal flood management over large areas and varying coastline types cannot be simply treated as local com...

Journal: :caspian journal of environmental sciences 2010
v. gholami m. mohseni saravi

urbanization is a pervasive global trend. the development of residential areas and road network in hajighoshan watershed (northern iran) has been observed in the recent several decades. the objective of this study is the quantitative investigation of the effects of impervious surfaces development and urban development on runoff generation and flood hazard. the study of urban area development wa...

2014
I. Halevy

Introduction: An abundance of geomorphological, mineralogical and geochemical evidence suggests widespread aqueous activity on the surface or early Mars [13]. However, recent studies of Mars’ early climate, using sophisticated three-dimensional climate models, find average surface temperatures too low to explain the observations [4,5]. It seems likely, therefore, that Mars’ early climate was, o...

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