نتایج جستجو برای: çat dam lake

تعداد نتایج: 54528  

2012
VICTOR R. BAKER

New field evidence and discharge calculation procedures provide new estimates of maximum late Pleistocene glacial Lake Missoula flood discharges for two important reaches along the flood route. Within the Spokane Valley, near the point of release, the peak discharge probably exceeded 17 ± 3 million m-sec. Downstream at Wallula Gap, a major point of flow convergence, peak discharge was about 10 ...

Journal: :Pamukkale University Journal of Engineering Sciences 2016

2012
Y. Li J. H. Gong J. Zhu L. Ye Y. Q. Song Y. J. Yue

The Xiaojiaqiao barrier lake, which was the second largest barrier lake formed by the Wenchuan Earthquake had seriously threatened the lives and property of the population downstream. The lake was finally dredged successfully on 7 June 2008. Because of the limited time available to conduct an inundation potential analysis and make an evacuation plan, barrier lake information extraction and real...

Journal: :Journal of environmental management 2009
Denine Schmitz Matt Blank Selita Ammondt Duncan T Patten

The restorative potential of dam removal on ecosystem function depends on the reversibility of dam effects and its operations. While dam removal is an established engineering practice, the need for an understanding of the ecological response remains. We used paleoflood hydrology, hydrologic modeling, and aerial photo interpretation to investigate the long-term ecologic responses to dam failure ...

2015
Amal Ibrahim Dayoub Hassan Mohamed Salman

The aim of the study was to develop a data base about the water quality in the Lake of 16 Tishreen Dam through, study was performed to determine of non biotic factors values of water in Lake and infecting FreeLiving fishes with monogenea parasites, and finding a relationship between parasites distribution and environmental conditions changing. 144 Free – living fishes were examined for detectin...

Ghashghaie, Maryam , Nozari, Hamed , Taheri Tizro, Abdollah ,

Background and purpose: The study aimed to investigate the trophic state of Ekbatan Dam Lake. In the current research, the quality of water behind the dam was studied during the months July and January in order to compare the trophic state and zonation of the reservoir in two different seasons (dry and wet). Materials and Methods: 15 sites were selected in different points of Ekbatan Dam Lak...

2017
Corrado Cencetti Saverio Romeo

Large landslides, triggered by earthquakes or heavy rainfall, often obstruct the river’s flow to form landslide dams, causing upstream inundations, and downstream flooding. In Italy, landslide dams are rather widespread along in Alps and Apennines: although the identification of past events is a complex task, some hundreds of landslide dams are identified in the literature. In order to assess t...

Abstract Background & Aims: With regard to this fact that Hasanlu dam is established on Sorgol wetland and the soil of that region is from the salt and alkaline, it's clear that the chemical quality of water has effected the soil of that area. The purpose of this project is to evaluate the changing process of water quality and to predict the water quality in the maximum water level as healthy d...

Journal: :ISPRS Int. J. Geo-Information 2012
K. Wayne Forsythe Barbara Schatz Stephen J. Swales Lisa-Jen Ferrato David M. Atkinson

For most of the last decade, the south-western portion of the United States has experienced a severe and enduring drought. This has caused serious concerns about water supply and management in the region. In this research, 30 orthorectified Landsat satellite images from the United States Geological Service (USGS) Earth Explorer archive were analyzed for the 1972 to 2009 period. The images encom...

Journal: :Remote Sensing 2017
Guiping Wu Yuanbo Liu

The Three Gorges Dam (TGD) has received increasing attention with respect to its potential effects on downstream hydro-ecosystems. Poyang Lake is the largest freshwater lake downstream of the TGD, and it is not immune to these impacts. Here, we combine hydrological observations, remote sensing, a geographic information system (GIS), and landscape ecology technology to investigate the variabilit...

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