The geometric, sedimentologic and hydrologic attributes of spring-dominated channels in volcanic areas
Carrying capacity ; Channel geometry ; Flood ; Fluvial hydrology ; Idaho ; Montana ; Oregon ; Springs ; Stream ; United States of America
of the bed and bank material; and the frequency and duration of flows. The geomorphic and hydrologic attributes of the spring-dominated channels were compared with those of runoff-dominated channels. Finally, they examine whether the distinctive hydrology
Macropore flow on a reclaimed surface mine : infiltration and hillslope hydrology
Hydrology ; Infiltration ; Land development ; Mine ; Pennsylvania ; Rill wash ; Soil erosion ; Soil properties ; United States of America ; Watershed
Surface coal mining in central Pennsylvania alters the physical and hydrological properties of soil erosion from its undisturbed state and changes the surface hydrologic response to precipitation. Newly reclaimed minesoils exhibit low, steady-state
Impacts of urbanization on surface hydrology, Little Eagle Creek, Indiana, and analysis of LTHIA model sensitivity to data resolution
Geographical information system ; Hydrology ; Impact ; Indiana ; Land use ; Model ; Precipitation ; Rill wash ; United States of America ; Urbanization ; Watershed
Land-use change in urbanizing areas can significantly alter the hydrology of a watershed and can have serious impacts on wetland water balances, downstream flooding, and groundwater recharge. In this paper, the AA. outline the structure
of implementing the Long-Term Hydrologic Impact Assessment (LTHIA) model in a GIS, evaluate the sensitivity of model results to input data resolution and precipitation record length, and demonstrate application of the model to a watershed undergoing land-use
Analysis of hydrological processes in unstable clayey slopes
that hydrometeorological changes have on slope stability. The data gathered in this project formed the starting point of this thesis. In this thesis the hydrological processes in clayey slopes susceptible to landsliding are analysed. - (AGD)
Simulating the impact of road construction and forest harvesting on hydrologic response
Hydrologic and geomorphic effects of forest roads. Special issue
Experimental Forest in the Western Oregon Cascades. A range of scenarios is used to generate hypotheses about the variability of hydrologic response to roads. Simulation results are also compared with results from an empirical study in the H.J. Andrews
Late Quaternary climate and hydrology of tropical South America inferred from an isotopic and chemical model of Lake Titicaca, Bolivia and Peru
A simple mass balance model provides insight into the hydrologic, isotopic, and chemical responses of Lake Titicaca to past climatic changes. Latest Pleistocene climate of the Altiplano is assumed to have been 20% wetter and 5°C colder than today
, based on previous modelling. The simulation of lacustrine change since 15,000 cal yr B.P. is forced by these modeled climate changes. Here the AA. employ an isotopic and chemical model in order to assess the magnitude of hydrologic changes required
Alps (The) ; Braided channel ; Channel geometry ; Gravel ; Hydrological regime ; Italy ; Model ; Riparian vegetation ; River bed ; Stream ; Wood
Against a background of a strong alpine to mediterranean climatic and hydrological gradient, this paper explores relationships between topography, sediment and vegetation at 8 sites along the active zone of the Tagliamento. A conceptual model
of island development is proposed which integrates the interactions between large woody debris and vegetation, geomorphic features, sediment calibre and hydrological regime. Depositional and erosional processes result in different island types
Initial hydrologic and geomorphic response following a wildfire in the Colorado Front Range
This study reports on the hydrologic and geomorphic response after a wildfire in a semi-arid, montainous system where the rainfall regime is characterized by short duration, high intensity summer rainfall. The short-term, transient response
California ; Discharge ; Hydrochemistry ; Hydrology ; Instrumentation ; Karst ; Meltwater ; Mountain ; Research technique ; Seasonal variability ; United States of America
; and to understand the seasonal and episodic nature of hydrologic and solution processes, in relation to soil CO2 flux and hydrologic events of snowmelt and precipitation. An automated data-logger installation designed to perform under difficult conditions has
Barcelona ; Carrying capacity ; Fluvial hydrology ; Grain size distribution ; Methodology ; Sediment load ; Sediment transport ; Spain ; Stream ; Threshold
hydrological environment. This paper assesses the relationship between the particle size of bedload samples and the shear stress conditions needed for their entrainment. The largest-grain method and the reference or fractional transport rate method have been
This study clarifies linkages between fluvial hydrologic processes, fluvial landforms, and patterns of riparian vegetation populations by using a suite of geomorphic and hydrologic variables. 5 riparian vegetation populations were examined along 5
Carbon dioxide ; Climatic variation ; Global change ; Hydrological regime ; Hydrology ; Model ; Oregon ; Runoff ; Simulation ; United States of America ; Water resources ; Watershed
This paper discusses the effects of water quality on the hydrological and erosion response of non-saline, non-sodic soils during simulated rain experiments. Two soils, a well-aggregated clay-rich soil developed on marine silty clay deposits
and a soil developed on silt loam, were selected and subjected to a series of simulated rainstorms using demineralized water and tap water. The hydrological response (infiltration, runoff), the physical degradation (soil surface roughness change and top-soil
Hydrologic and geomorphic effects of forest roads. Special issue
demonstrated that higher flows occurred in ditches draining clearcuts compared to forested areas. Contrary to expectation, road cutslope height did not seem to affect culvert peak runoff. A distributed hydrologic model was used to evaluate road effects on peak