نتایج جستجو برای: beshar river

تعداد نتایج: 83554  

2014
You Xiang Li Ma Lu Chen Ying

The flood governance of Huaihe River has a long history. Especially after the establishment of New China, the state has invested huge funds in water conservancy projects, but the problem of Huaihe River flood has not been fundamentally solved. On the basis of previous studies, the reasons for the Huaihe River flood, among which the root causes of the Huaihe River floods are the poor access of t...

Journal: :Remote Sensing 2016
Omid Elmi Mohammad J. Tourian Nico Sneeuw

Abstract: Our knowledge of the spatio-temporal variation of river hydrological parameters is surprisingly poor. In situ gauge stations are limited in spatial and temporal coverage, and their number has been decreasing during the past decades. On the other hand, remote sensing techniques have proven their ability to measure different parameters within the Earth system. Satellite imagery, for ins...

2006
Maite deCastro Nieves Lorenzo Juan J. Taboada Maria Sarmiento Ines Alvarez Moncho Gomez-Gesteira

The influence of the most representative winter patterns of atmospheric variation in the Northern Hemisphere on precipitation variability and on river flow regimes was evaluated for the Miño River basin (NW Iberian Peninsula). The Arctic Oscillation (AO) was also considered in order to analyze the effect of a larger-scale atmospheric mode on precipitation and river flow. Precipitation data were...

2011
JAMES C. BRICE Thomas B. Nolan

_ ----------____-_.__________.__..____._... Introduction.-.._._..___.__.___...'_.._.._.___...___ Pleistocene and Recent deposits .......L.............. North Loup River valley near Elba._____._..___._ North Loup River valley near Burwell..__.__._.__ North Loup River valley downstream from Brewster. North Loup River valley upstream from Brewster... South Loup River valley near Cumro. ___________...

Journal: :آب و خاک 0
سمیه پوربخشیان محمدرضا مجدزاده طباطبائی سید سعید موسوی ندوشنی شهرام منصوری

abstract morphological river models are designed to provide physical insight into the morphological response and to assist river engineers and managers in the design, operation and maintenance of river systems. here deterministic modeling weak for a dynamic and stochastic of nature river environment. specially, these could not predict the exact shape of the river bed, specially e.g. for braided...

2011
Monica Sanz Laura Osorio Álvaro Uribe

The Rio Bogotá (Bogota River) descends 370 km through the plain of Bogotá from an altitude of 3400 m above sea level in Villapinzón before it discharges into the Magdalena River at 280 m above sea level (Bravo et al., 1999). The upper river is relatively small and shallow with a limited gradient until, halfway along its route; it passes Bogotá, not only Colombia’s Capital City but also an impor...

2013
JEFFREY A. NITTROUER

Where rivers enter the coastal zone, gradually varying non-uniform flow conditions develop in the channel. This section of the river is referred to as the backwater segment, and for large rivers, backwater flow extends many hundreds of kilometres upstream of the river outlet. Studies from the Mississippi River document a persistent backwater zone that influences sediment mobility throughout the...

2014
Janet Macfall Paul Robinette David Welch Xiaoyan Yang

The Haw River, a high order river in the southeastern United States, is characterized by severe bank erosion and geomorphic change from historical conditions of clear waters and connected floodplains. In 2014 it was named one of the 10 most threatened rivers in the United States by American Rivers. Like many developed areas, the region has a history of disturbance including extensive upland soi...

Journal: :Journal of environmental quality 2012
A C Kessler S C Gupta H A S Dolliver D P Thoma

Sediment and phosphorus (P) transport from the Minnesota River Basin to Lake Pepin on the upper Mississippi River has garnered much attention in recent years. However, there is lack of data on the extent of sediment and P contributions from riverbanks vis-à-vis uplands and ravines. Using two light detection and ranging (lidar) data sets taken in 2005 and 2009, a study was undertaken to quantify...

2015

As mentioned in Chapter 1, the main issues in trans-boundary river basins are scarcity of water and externalities from upstream to downstream. For instance, excessive water consumption of upstream countries might deprive the right of water consumption for downstream countries. Another prominent issue is that upstream countries could pollute the trans-boundary river carelessly without taking int...

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