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 28 for “"ungauged"”.
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Flood hazard sensitivity on infrastructures in small ungauged watersheds
L'abstract è presente nell'allegato / the abstract is in the attachment
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Enhanced Soil Moisture and Streamflow Estimation in Ungauged or Data-Scarce Watersheds
… soil moisture data for model calibration in ungauged and data-scarce watersheds, especially for watersheds where variable source area runoff mechanism dominate. Chapter 2 proposes the topographic index (TI) as a tool to represent the spatial soil moisture patterns. Using unsupervised machine …
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Hydrological assessment and modelling of the River Fani Catchment, Albania
… the Catchment of the River Fani which is remote, ungauged and characterised by frequent flooding, erosion and deforestation. Over the years these processes have had a huge environmental and socioeconomic impact on the residents of Rubik. Aid In Action was concerned about this situation and wished …
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Using ensemble precipitation forecasts to improve hydrologic risk assessment at river crossings
… reduce uncertainty of hydrologic forecasts in ungauged basins. Forecast improvement in ungauged basins is of great interest to the United States Army due to a combination of the remoteness and hydrologic safety risk associated with low-water crossings (LWXs) commonly used as river …
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A synthetic unit sedimentgraph for ungaged watersheds
… method of deriving unit sediment graphs for ungauged small watersheds is not available. Based on synthetic principles as well as linear and time-invariant principles, applied to the systems approach of hydrology, a synthetic model has been developed to derive the unit sediment graph and to …
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Hydraulic modelling and flood inundation mapping in a bedrock-confined anabranching network: the Mekong River in the Siphandone Wetlands, Laos
… partly non-survey<br/>bathymetry; and, (iii) ungauged downstream boundary condition of one of the channel<br/>outlets. To determine the discharge entering each channel, the splitting discharge ratio at each<br/>bifurcation was defined originally by the ratio of the cross-sectional area of the …
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ANALYSES OF INFLUENTIAL FACTORS FOR ACCURATE DETERMINATION OF PEAK RATE FACTORS AND TIMES TO PEAK OF UNIT HYDROGRAPHS
… UH parameters is still a problem, especially for ungauged watersheds. The goal of this research was to analyze factors that influence estimates of UH parameters and to develop general guidelines that can assist in estimating UH parameters more accurately. A calibration model was developed for …
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Modelling of urban stormwater drainage systems using ILSAX
… information available to use them especially for ungauged catchments. According to 5% of the respondents, who used models, ILSAX was the most widely used stormwater drainage computer model in Victoria. The 1987 edition of the Australian Rainfall-Runoff (ARR87) suggests the ILSAX model as one of …
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Utilising Reverse Hydrology to quantify and improve the spatio-temporal information content of catchment rainfall estimates for flood modelling
… records, reducing uncertainty in both gauged and ungauged catchments by improving rainfall estimates, assessing and refining rain gauge networks and re-evaluating areal rainfall estimation.
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Estimating Reservoir Storage Dynamics Using Satellite Remote Sensing and Hypsometric Information
… sensing techniques to evaluate the impact of ungauged reservoirs on downstream hydrology. Chapter 3 introduces a novel approach for deriving reservoir hypsometry by combining satellite observations with geometry-based methods, thereby improving the accuracy and scalability of global reservoir …
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Basin-scale spatiotemporal analysis of hydrologic floodplain connectivity
… regional regression analysis to calculate the ungauged flow duration curves (FDC). Inundation area (normalized to stream length) was found to increase with drainage area, suggesting larger streams have more area available for biogeochemical activity. Annual connectivity increased with drainage …
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A GIS application for regional streamflow analysis
… to estimate streamflow parameters for ungauged streams. The procedure involves analyzing historical flow records for streams in a particular region, in order to estimate flows for other streams in the region. Traditionally, the process of obtaining and summarizing relevant streamflow …
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Modelling impacts of climate change on hydrology of Latonyanda River Quaternary Catchment, Limpopo Province, South Africa
… studies should be conducted as there is a gap in ungauged catchments. The expansion of the current study to include land use impacts on hydrology is recommended.
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Towards applied modeling of the human-eco-system an approach of hydrology based integrated modeling of a semi-arid sub-catchment in rural north-west India
… hydrological modeling on catchment scale for ungauged conditions and to overcome current paradigms.
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Data-driven analyses of watersheds as coupled human-nature systems
… watersheds in the U.S. are known (in the case of ungauged watersheds) or readily predicted (in the case of future conditions) makes them ideal independent variables for predicting watershed response. The basic idea is to define quantitative indices (e.g., flow duration curve, index of biotic …
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Development and Evaluation of a Gis-Based Spatially Distributed Unit Hydrograph Model
… framework for predicting runoff hydrographs for ungauged watersheds that can reflect the spatially distributed nature of the rainfall-runoff process. Predictions were comparable to the other synthetic unit hydrograph techniques. Because the time to peak and model efficiency statistics were …
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Aspects of quantum states of matter
… appearance takes a fixed finite value in the ungauged model, in our model it may be made arbitrarily small.
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