نتایج جستجو برای: river discharge

تعداد نتایج: 180125  

2012
Craig A. Grove Jens Zinke Tim Scheufen Joseph Maina Eric Epping Wim Boer Geert-Jan A. Brummer

Coral cores provide vital climate reconstructions for site-specifi c temporal variability in river fl ow and sediment load. Yet, their ability to record spatial differences across multiple catchments is relatively unknown. Here, we investigate spatial linkages between four coral proxies of terrestrial runoff and their relationships between sites. Coral cores were drilled in and around Antongil ...

2013
Jill Crossman Martyn N. Futter Paul G. Whitehead

In glacier-fed systems climate change may have various effects over a range of time scales, including increasing river discharge, flood frequency and magnitude. This study uses a combination of empirical monitoring and modelling to project the impacts of climate change on the glacial-fed Middle Fork Toklat River, Denali National Park, Alaska. We use a regional calibration of the model HBV to ac...

2017
Min Ge Feng-ping Wu Xiao-ping Chen Basant Maheshwari

Regional initial water rights is a crucial part of initial water rights and clarification of it is an essential method to improve the efficiency of water use. It also promotes sustainable use of valuable water resources. Consequently, under new circumstances of China’s most stringent water resources management, with water quantity and quality control, we propose a new perspective for a coupled ...

2010
Rajesh R. Shrestha Slobodan P. Simonovic

The discharge and stage measurements in a river system are characterized by a number of sources of uncertainty, which affects the accuracy of a rating curve established from measurements. This paper presents a fuzzy set theory based methodology for consideration of different sources of uncertainty in the stage and discharge measurements and their aggregation into a combined uncertainty. The unc...

2005
ROLF AALTO WILLIAM DIETRICH Rolf Aalto

The Strickland River is the primary sediment source for the Fly River system, a large tropical river that ranks in the global top 20 for both water and sediment discharge. Over the past decade the Strickland sediment discharge has been gauged at many locations. Comprehensive studies are now underway to study the delivery, transport, and storage of sediment throughout this system. A key question...

2005
YUEPING XU HARRIETTE HOLZHAUER

The relationships between water level and discharge along the river channel are vital for decision support systems in river basin management. Normally the reliability of the so-called rating curves along the river channel depends greatly on the accuracy and duration of the measured discharge and water level data. In the Elbe Decision Support System (DSS), the rating curves are combined with the...

2004
Jenny G. Webster-Brown

Arsenic is released from various geothermal fields in the central North Island of New Zealand, into the Waikato River. Arsenic concentrations in the river water typically range from 0.02 to 0.06 mg/L. A review of As behaviour in this large catchment system is presented, based on over 10 years of water quality monitoring data and the results of more detailed, specific studies of As speciation an...

2013
B. Naik

Each river in the world is unique. Some are gently curve, others meander, and some others are relatively straight and skewed. The size of river geometry also changes from section to section longitudinally due to different hydraulic and surface conditions called non -prismatic channel. Much works done on river hydraulics are found to bed non prismatic compound channels. There has also been signi...

2014
F. F. Hattermann S. Huang

The aim of the study is to analyze and discuss possible climate change impacts on flood damages in Germany. The study was initiated and supported by the German insurance sector whereby the main goal was to identify general climate-related trends in flood hazard and damages and to explore sensitivity of results to climate scenario uncertainty. The study makes use of climate scenarios regionalize...

2001
James McNames Tobias Kukulka

The Columbia River discharge plays a central role in North-East Pacific Ocean coastal ecosystem dynamics. A model is developed to predict non-stationary surface-salinity time-series in the North Pacific Ocean off-shore the Columbia River. The model takes wind velocities and Columbia River discharge as inputs only. Wind velocities are converted to smoothed wind stresses which are then integrated...

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