Dam ; Flood ; Hydraulic works ; Hydrological regime ; Riparian vegetation ; Stream ; Stream flow ; United States of America
This paper presents the analysis of pre- and post-dam hydrologic changes from dams that cover the spectrum of hydrologic and climatic regimes across the United States. The overall goals are to document the type, magnitude, and direction
of hydrologic shifts because of impoundment. To assess hydrologic changes associated with dams, the AA. applied a hydrologic model, the Indicators of Hydrologic Alteration (IHA), supplemented with orientation statistics for certain hydrograph parameters
. The results indicate that the major pulse of dam construction during the previous century has modified hydrologic regimes on a nationwide scale, for large and small rivers.
This review seeks to examine connections between hydrology and biogeochemistry at the landscape scale. A review of research on landscape structure and organization provides a context for what follows, and seeks to integrate work at relevant scales
in ecology and geomorphology; the degree of functional connectedness between different landscape elements provides the key theme. Following a review of hillslope hydrology, links between hillslope runoff pathways and nutrient dynamics are then considered
The main aim this paper is to reveal the hydrological impacts on the social and economic processes over the Dráva flood plain. AA. demonstrate how water regime and the micro relief have been influencing the economic and settlement relations
Attempts to combine hydrology and ecology in classifying rivers and in setting flow objectives to favour biota are reviewed, together with integrated approaches to river management that aim to promote ecological quality. A significant scale
disparity is noted between the disciplines, hydrology being studied at catchment, subcatchment and reach scales, and biology generally at local level. The approach with most appeal for general risk assessment is based on the concept of hydrological
alteration. Finally, the AA. consider the potential of these methods as tools for hydrological risk assessment in European Water Framework Directive implementation.
Conditions for water circulation in the Eg basin provided the background to a description of that river's long-term variability of outflow and hydrological regime. The importance of different sources in the formation of streamflow was also estimated
Effects of flow regulation on flow regime in the Murrumbidgee River, South Eastern Australia : an assessment using a daily estimation hydrological model
Australia ; Flood ; Hydraulic works ; Hydrological regime ; Model ; New South Wales ; Stream ; Stream flow ; Water management
In this paper, modelled hydrological data are used to quantify the effects of regulation on the flow regime of the lower Murrumbidges River in the period 1970-1988. The comparison of modelled natural and regulated daily flows shows the magnitude
Agriculture ; Hungary ; Hydrology ; Water budget ; Water pollution ; Water quality
This paper gives a short overview about the hydrological conditions of Hungary with special attention to water budget and water quality problems. It begins with an overview to what extent Hungary is dependent on water, then the water budget
Geomorphological, hydrological and climatic significance of rock glaciers in the Andes of Central Chile (33-35°S)
Air temperature ; Andes ; Chile ; Hydrology ; Moisture ; Mountain ; Periglacial features ; Permafrost ; Rock glacier ; Spatial distribution ; Volcanism
Based on 125 years of hydrological record, temporal dynamics can be detected : intervals rich and poor in deposition events can be established as a function of climatic singularity. Since there has been a remarkable increase in the average duration
Africa ; Eastern Africa ; Erosion rate ; Hydrology ; Infiltration ; Kenya ; Model ; Mountain ; Rill wash ; Soil erosion ; Spatial distribution ; Tanzania ; Watershed
-infiltration along the slope. The model predictions could be improved by introducing a more realistic hydrological component for the prediction of surface runoff along the hillslope.
Alluvial plain ; Bihar ; Floodplain ; Ganges River ; Geomorphology ; Hydrodynamics ; Hydrological regime ; India ; Neotectonics ; Sediment budget ; Sediment transport ; Stream ; UttarPradesh
The AA. select 2 regions of the Gangetic plains to compare the morphology, hydrology, and fluvial processes : the Ganga-Yamuna interfluve in the Western Gangetic Plains (WGP) of Utar Pradesh and the Gandak-Kosi interfluve in the Eastern Gangetic
Recent studies regarding the climate variability in South America during the 20th century, revealed the existence of climate cycles that influenced the hydrologic conditions in the Paraná River basin. How that variability affected the channel
morphology of this river in its middle reach is quantitatively analyzed in this paper. The link between climate, hydrology and channel morphology is obtained through the computation of effective discharge. The analysis involved the processing of more than 180
Aerial photography ; Arizona ; Baja California ; Biodiversity ; Channel geometry ; Colorado ; Geographical information system ; Hydraulic works ; Hydrological regime ; Mexico ; North America ; Photointerpretation ; Stream ; United States of America
Information System analysis to examine the planform channel response of the upper Colorado River delta (limitrophe reach) to this recently altered hydrology. It provides insight into how floods affect the channel system that provides the foundation for aquatic