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 907 for “"catchment"”.
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Simulation of catchment runoff, erosion and sediment transport using a transient numerical model for Mlalazi catchment
Catchments and estuaries are fragile systems that are prone to serious degradation from many different anthropogenic impacts. Much research has been conducted on developing an understanding of the fluvial processes in river catchments and in estuary dynamics. Many of the anthropogenic impacts on …
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Water Quality Modeling in Kranji Catchment
… bacterial fate and transport in the Kranji Catchment of Singapore. The goal of this process is to predict bacterial loading to Kranji Reservoir under the forcing of weather and other variables. Necessary data and input values were collected or estimated and input into the model. One of the …
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Challenges and opportunities of Catchment Management Approach in Mitigating Land degradation: The case of Mkuwazi catchment, Malawi
… from the World Bank, is implementing integrated catchment management (ICM) as a sustainable approach to manage water and land resources and to halt land degradation. Integrated Catchment Management promotes the integration of environmental, social, and economic factors within a catchment to …
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Susceptibility Of Headwater Catchment Hydrology To Persistent Droughts And Forest Structure Modification - A Plot To Catchment Scale Analysis
Headwater catchments across the Western United States are critical environments to natural ecosystems and are a vital component of water resources to many communities and industries and may be strongly affected by changing climate and altered disturbance regimes. To better quantify how these …
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Programme vision: Styx River catchment monitoring manual
In the past the Styx River catchment consisted largely of raupo/flax wetlands, grassland areas and coastal sand dunes. A diverse range of native fish and bird species, which had high cultural values and associations to the Tangata Whenua, supported the vegetation. However, by the early 1860s, after …
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A modular distributed model of catchment dynamics.
Massachusetts Institute of Technology, Dept. of Civil Engineering. Thesis. 1971. Sc. D.
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The hydrological flux of organic carbon at the catchment scale: a case study in the Cotter River catchment, Australia
… in water and enter the hydrological flux at the catchment scale. A significant quantity of total organic carbon (TOC) sequestered through photosynthesis may be exported from the landscape through the hydrological flux and stored in downstream stocks.¶ This thesis presents a catchment-scale case …
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The hydrological flux of organic carbon at the catchment scale: a case study in the Cotter River catchment, Australia
… in water and enter the hydrological flux at the catchment scale. A significant quantity of total organic carbon (TOC) sequestered through photosynthesis may be exported from the landscape through the hydrological flux and stored in downstream stocks.¶ This thesis presents a catchment-scale case …
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Assessing agricultural expansion in upper Lunsemfwa river catchment: a case study of the upper Lunsemfwa river catchment, central province, Zambia.
… activities in the Upper Lunsemfwa River Catchment (ULRC) and their potential impact on land cover. It also emphasizes the threats posed to land and water resources by agricultural expansion and the loss of natural resources due to economic development. To help with understanding and …
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Assessing agricultural expansion in upper Lunsemfwa river catchment: a case study of the upper Lunsemfwa river catchment, central province, Zambia.
… activities in the Upper Lunsemfwa River Catchment (ULRC) and their potential impact on land cover. It also emphasizes the threats posed to land and water resources by agricultural expansion and the loss of natural resources due to economic development. To help with understanding and …
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Catchment scale modelling of micro and emerging pollutants
… introduced into a watershed and sampled at the catchment outlet depends on many environmental, chemical and hydro-climatological forces.Moreover, if the solutes are micro and emerging pollutants (i.e. pharmaceuticals), which are non-regulated contaminants not routinely monitored but …
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Estimation of catchment flood potential using satellite data
… of a flood occurring on a particular river catchment as a result of convective storm rainfall, The system is designed for use in developing countries and uses data from the Advanced Very High Resolution Radiometers (AVHRR) aboard the NOAA polar orbiters and the synthetic aperture radar (SAR) …
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Swan-plant interactions in a chalk river catchment.
… the grazing of plants in chalk river catchments, principally the submerged macrophyte water crowfoot (Ranunculus penicillatus ssp. pseudofluitans (Syne) S.D. Webster) and terrestrial pasture grass species, by flocks of non-breeding mute swans (Cygnus olor Gmelin, 1789). This research …
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Bayesian networks for spatio-temporal integrated catchment assessment
In this thesis, a methodology for integrated catchment water resources assessment using Bayesian Networks was developed. A custom made software application that combines Bayesian Networks with GIS was used to facilitate data pre-processing and spatial modelling. Dynamic Bayesian Networks were …
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Understanding Himalayan denudation at the catchment and orogen scale
… has become a widely-used method to quantify catchment-mean denudation rates. Because such measurements are averaged over timescales of 102 to 105 years, they are not as susceptible to stochastic changes as shorter-term denudation rate estimates (e.g., from suspended sediment measurements) and …
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LANDSLIDE INVESTIGATION IN THE RÍO AGUAS CATCHMENT, SOUTHEAST SPAIN
… activity affecting the 425 km² Rio Aguas Catchment area has been completed. This is a remote and rural part of southeastern Spain, which has an arid to semi-arid climate and is periodically affected by both earthquake and flash-flood activity. Through a combination of aerial photographic …
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Sustainability of intensified agricultural production in the Boyne catchment.
… The study was carried out on the River Boyne catchment area. A wide-ranging environmental systems analysis was carried out to assess the environmental impacts associated with the intensification of agricultural production envisaged in Food Harvest 2020. The following environmental impacts were …
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Rural Land Management Impacts on Catchment Scale Flood Risk
… and streamflow. Upscaling these effects to the catchment scale continues to be problematic,both conceptually and, more importantly, methodologically. Conceptually, upscaling is critical. As land management may impact upon the relative timing as well as the magnitude of runoff, any changes in …
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Diagnostic analysis of runoff partitioning at the catchment scale
… of the controls runoff partitioning at the catchment scale is necessary to constrain and improve hydrological predictions at catchment scale, especially in ungauged catchments. This dissertation systematically investigates the controls of climate, soil and topography on runoff partitioning …
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