Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 96 for “"river flow"”.
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Developing GPS river flow tracers (GRiFTers) to investigate large scale river flow phenomena
Existing flow measurement methods in natural gravel rivers are largely based on a series of point measurements detached from the dynamic nature of river flow. Traditional measurement methods are limited in many environments and locations due to an inability to access directly the channel; this …
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ALTERATIONS OF RIVER FLOW REGIMES IN THE NORTHERN ROCKY MOUNTAINS, USA
… in natural and anthropogenically-modified river basins of the Northern Rocky Mountains over 59 years. I applied linear and non-linear models to the data to determine what, if any, alterations have occurred in the annual flow regimes. By comparing the different results from the natural and …
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ALTERATIONS OF RIVER FLOW REGIMES IN THE NORTHERN ROCKY MOUNTAINS, USA
… in natural and anthropogenically-modified river basins of the Northern Rocky Mountains over 59 years. I applied linear and non-linear models to the data to determine what, if any, alterations have occurred in the annual flow regimes. By comparing the different results from the natural and …
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Evaluating the use of neural networks to predict river flow gauge values
… could be facing serious water shortages. River flow discharge rates are one factor that could contribute to improving water management, being able to predict a forecasted river flow value would provide support in the management of water resources. This research investigates the use of an …
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A precipitation model and its use in real-time river flow forecasting
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1982.
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Uncertainty analysis of acoustic flow measuring instruments for characterization of high energetic river flow
… using acoustic methods in highly energetic river flows are quantified by performing measurements to isolate specific error terms, and by applying analytical methods and statistical analysis to recorded data. A MATLAB code is developed for motion compensation and data filtering. The …
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Modeling riparian groundwater depth as a function of river flow for the Rio Grande at Albuquerque, NM
… corridor ecological health is strongly tied to river streamflow. As climate change threatens to significantly reduce monthly streamflows in semi-arid regions, riparian groundwater will be similarly reduced, impacting native and non-native flora. This paper presents a geographic information …
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Evaluating the ecosystem services and disservices provided by Mediterranean woodlands
… how the effects of forest establishment on river flow and carbon fixation have been influenced by climate change and land-use change in recent decades. A systematic review of the effect of forest establishment on annual river flow, including 43 catchments from across the world, showed that …
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The use of joint probability analysis to predict flood frequency in estuaries and tidal rivers
… thesis investigates the combined influence of river flow, tide and surge on the frequency of extreme water levels in tidal rivers and estuaries. The estimation of flood risk may depend on extreme combinations of these variables rather than individual extreme events, but these relationships are …
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An improved geography of surface water abundance in lakes and reservoirs
… global lake systems remains surprisingly poor. River flow and storage in lakes/reservoirs are two main surface water resources for human societies. When river flow experiences high stress due to increasing human water demand, water storage in lakes and reservoirs can provide fresh water to …
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In situ monitoring and biogeochemical cycling of nutrients in estuarine waters
… datasets {e.g. nitrate+nitrite, phosphate, river flow, precipitation, suspended solids, water temperature and chlorophyll a) from the Tamar catchment, UK. The results provided useful information about correlations between the studied variables. The influence of time delay to correlate …
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Seasonal hydrological prediction in Great Britain – an assessment
… in Great Britain. Firstly, the study evaluates river flow prediction using climate model output to drive a rainfall-runoff model in the Dyfi basin, Wales. Results show that climate model precipitation can not skilfully simulate Dyfi discharge. When a downscaling process is employed to generate …
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Population Dynamics of Threatened Piping Plovers on the Niobrara River, Nebraska
Prairie rivers of the Great Plains, USA, provide important habitat for the federally threatened piping plover (“plover”, Charadrius melodus). Plovers nest on open to sparsely vegetated river sandbars, and their demographic rates are closely linked to habitat availability and quality, as well as …
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Thermal pollution modeling of the New River
… the Glen Lyn, Virginia power plant on the New River was compared to the thermal plume data from a hydraulic river model of this section of river. Both summer (high temperature, low river flow) and winter (low temperature, high river flow) conditions were modeled. The model plume in summer …
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Freshwater requirements of Knysna Estuary
… of the 335 km 2 catchment of the Knysna River is described using several standard techniques, including those described in Hydrological Research Unit Reports Nos 2/76, 1/72 and 2/78. The mean annual . 6 -1 run-off at the farm Charles ford is about 61 x 10 m3 an. . Salinity measurements …
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Relationships between climate, growth and fisheries production in a commercially exploited marine fish
… by the Palmer Drought Severity Index (PDSI), and river flow from the Morelos Dam with three parameters: adult fish condition, growth rate, and fisheries production. Adult fish condition was assessed by comparing annual variations in weight-length relationships of fish captured by the commercial …
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Enabling real-time water decision support services using model as a service
… information system, real-time data and river modeling systems can help decision makers identify more effective actions for management practice. The purpose of this study is to develop real-time water decision support services for decision makers during droughts and floods. To enable ease …
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The impact of global climate change on the runoff and ecological sustainability of the Breede River
The Breede River catchment in the South Western Cape is already under pressure for its water resources due to its supporting a variety of different land uses. The predominant land use in this catchment is agriculture, which demands the majority of river water for irrigation. The Department of Water …
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Dinoflagellate blooms and physical systems in the Gulf of Maine
… appears to have been formed off Maine by the outflow from the Androscoggin and Kennebec Rivers. Flow rates of these rivers, hydrographic sections, and satellite images suggest that the plume had a duration of about a month, and extended alongshore for several hundred kilometers. The distribution …
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