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- Title
- Optimal operation of hydro power systems under a fuzzy multi-objective decision making environment.
- Creator
- Ferreira, Andrâe Rodrigues., College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
- Abstract/Description
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Management of water resources has become more complex in recent years as a result of changing attitudes towards sustainability and the attribution of greater attention to environmental issues, especially under a scenario of water scarcity risk introduced by climate changes and anthropogenic pressures. This thesis addresses the conflicts in optimizing multi-purpose hydropower operations under an environment where objectives are often conflicting and uncertain. Mathematical programming...
Show moreManagement of water resources has become more complex in recent years as a result of changing attitudes towards sustainability and the attribution of greater attention to environmental issues, especially under a scenario of water scarcity risk introduced by climate changes and anthropogenic pressures. This thesis addresses the conflicts in optimizing multi-purpose hydropower operations under an environment where objectives are often conflicting and uncertain. Mathematical programming formulations can be used to achieve flexible, feasible and optimal operation and planning solutions to satisfy expectations of multiple stake-holders, including regulatory environmental compliance and sustainability. Innovative optimization models using MINLP with binary variables, fuzzy set theory, partial constraint satisfaction and multi-objective formulations incorporating unit commitment problem and adaptive real-time operations are developed and applied to a real life case study. These methodologies provide advances and valuable insights on optimal operations of hydropower systems under uncertain decision making environments.
Show less - Date Issued
- 2009
- PURL
- http://purl.flvc.org/FAU/368616
- Subject Headings
- Water resources development, Environmental aspects, Water conservation, Management, Integrated water development, Decision making, Mathematical models
- Format
- Document (PDF)
- Title
- Beyond Water Restrictions: Informing Effective Lawn Watering Behavior.
- Creator
- Survis, Felicia D., Root, Tara L., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
- Abstract/Description
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Evaluating trends of historical rainfall on a weekly and seasonal basis is needed for optimizing the design and implementation of lawn water conservation strategies like outdoor water restrictions. While “day of the week” water restrictions are a typical strategy to limit the frequency and duration of urban lawn water use, they may not necessarily result in more conservative behaviors from end-users. Because weekly rainfall and local climate variables are seldom taken into account in water...
Show moreEvaluating trends of historical rainfall on a weekly and seasonal basis is needed for optimizing the design and implementation of lawn water conservation strategies like outdoor water restrictions. While “day of the week” water restrictions are a typical strategy to limit the frequency and duration of urban lawn water use, they may not necessarily result in more conservative behaviors from end-users. Because weekly rainfall and local climate variables are seldom taken into account in water restriction strategies, they are not connected to actual lawn water demand. However, since lawn water demand is directly related to weekly rainfall totals, not to a particular number of watering days per week, water restriction schedules have the potential to unintentionally promote overwatering. This study investigated the weekly patterns of average seasonal rainfall and evapotranspiration in South Florida to determine the typical variability of weekly net irrigation needs and found that typical wet season weekly rainfall often provides a significant amount of water to meet the demand of residential lawns and landscapes. This finding underscores opportunity to reduce supplemental overwatering in residential landscapes if watering guidelines were modified to recognize seasonal average weekly rainfall in this region This study also tested a rainfall-based water conservation strategy to determine if providing residents with information about how local rainfall could promote more effective lawn watering behavior than just water restrictions alone. Experimental households reduced lawn water use by up to 61% compared to the control group by the end of the study. These results demonstrate that the neighborhood “rain-watered lawn” signs helped experimental study group households become more aware of rainfall as the primary input of water to their lawns. This study also investigated the role that lawn irrigation from self-supplied sources plays in the urban lawn water demand and investigates how the lawn water use and lawn watering behaviors of households that source from self-supply differ from those who source from the public supply.
Show less - Date Issued
- 2016
- PURL
- http://purl.flvc.org/fau/fd/FA00004710
- Subject Headings
- Landscape irrigation, Municipal water supply, South Florida Water Management District, Water conservation, Water consumption, Water resources development
- Format
- Document (PDF)
- Title
- Assessment of clilmate change impacts on streamflow trends using a water balance model.
- Creator
- Matthews, Kevin., College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
- Abstract/Description
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Significant changes in climate and their impacts are now visible in various places around the globe and are expected to become more evident in the coming decades. For each increase in temperature, there are environmental and societal consequences. It has important implications for existing water resources systems as well as for future water resources planning and management. Water accounting (identifying, quantifying and reporting information of water flow in a system) is the first step...
Show moreSignificant changes in climate and their impacts are now visible in various places around the globe and are expected to become more evident in the coming decades. For each increase in temperature, there are environmental and societal consequences. It has important implications for existing water resources systems as well as for future water resources planning and management. Water accounting (identifying, quantifying and reporting information of water flow in a system) is the first step towards formulating productive and sustainable water management strategies in a region. Thus, water balance models could be an empowering tool for water resource managers to prepare for and mitigate the effects of climate change on their local hydrologic resources. This thesis offers an insight into how such a tool can be used to assess and predict future stream flow trends in an effort to mitigate or manage any potential effects.
Show less - Date Issued
- 2012
- PURL
- http://purl.flvc.org/FAU/3358599
- Subject Headings
- Climatic changes, Environmental aspects, Hydrology, Water resources development, Natural resources, Accounting
- Format
- Document (PDF)
- Title
- Infrastructure to model complex systems: hydrological modeling.
- Creator
- Wissinger, Frank, Shankar, Ravi, Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
- Abstract/Description
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This research proposes an Infrastructure to model complex systems for hydrological modeling. Currently, the three main hydrological packages are: i) SEAWAT (modeling groundwater flow); ii) HECRAS (modeling surface water flow); iii) HEC-HMS (modeling atmospheric water flow). Each of these models is self-contained and has a different timescale and simulation speed. Consequently, any integrated model will only run as fast as the slowest of the models. This makes it difficult to provide reliable...
Show moreThis research proposes an Infrastructure to model complex systems for hydrological modeling. Currently, the three main hydrological packages are: i) SEAWAT (modeling groundwater flow); ii) HECRAS (modeling surface water flow); iii) HEC-HMS (modeling atmospheric water flow). Each of these models is self-contained and has a different timescale and simulation speed. Consequently, any integrated model will only run as fast as the slowest of the models. This makes it difficult to provide reliable and dynamic information on water levels and water availability for a given geographical region in a timely manner. The goal of this research is to facilitate the integration of multiple hydrological models from different hydrological packages by applying Electronic Design Automation (EDA) methodologies, including System Level Design (SLD) methodology, SystemC-AMS language, Python language and libraries (numpy, Statsmodels, and ctypes). The EDA methodology brings in the additional advantage of significantly improved simulation speed. The Infrastructure to Model Complex Systems applications is demonstrated using the following SEAWAT benchmark problems: i) Case 1; ii) Henry; iii) Elder problem. Simulation results from the aforementioned benchmarks are analyzed and discussed. Lastly, future research work is presented.
Show less - Date Issued
- 2014
- PURL
- http://purl.flvc.org/fau/fd/FA00004338, http://purl.flvc.org/fau/fd/FA00004338
- Subject Headings
- Floodplain management, Groundwater -- Environmental aspects, Groundwater flow -- Computer simulation., Water resources development
- Format
- Document (PDF)
- Title
- Residential lawn water use and lawn irrigation practices: Wellington, Florida.
- Creator
- Survis, Felicia D., Charles E. Schmidt College of Science, Department of Geosciences
- Abstract/Description
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Water conservation initiatives seldom quantify the volume of water that is at stake in lawn watering. In many communities, including those in South Florida, outdoor water use, which includes lawn irrigation, is not metered separately from indoor water use and is indistinguishable from indoor water usage. A large number of residents use self supply non-potable wells for lawn irrigation that are not regulated by the South Florida Water Management District. The result is that residential lawn...
Show moreWater conservation initiatives seldom quantify the volume of water that is at stake in lawn watering. In many communities, including those in South Florida, outdoor water use, which includes lawn irrigation, is not metered separately from indoor water use and is indistinguishable from indoor water usage. A large number of residents use self supply non-potable wells for lawn irrigation that are not regulated by the South Florida Water Management District. The result is that residential lawn water use is difficult to account for and quantify. This thesis project addressed these difficulties by combining semistructured interviews, daily watering observations and irrigation system audits to ascertain how much public supply water and self supply (well) water was being used for residential lawn irrigation. The study also examined lawn watering practices and how factors such as: precipitation, the minimum plant needs of St. Augstinegrass, and how local watering restrictions influenced watering behavior.
Show less - Date Issued
- 2010
- PURL
- http://purl.flvc.org/FAU/2705082
- Subject Headings
- Lawns, Water resources development, Landscape irrigation, Water consumption, Municipal water supply
- Format
- Document (PDF)
- Title
- Interview with Joe Schweigart – ca. 2008.
- Creator
- Schweigart, Joe (Interviewee), Addeo, David (Interviewer)
- Date Issued
- 2008-02-18
- PURL
- http://purl.flvc.org/fau/fd/FADT78736
- Subject Headings
- South Florida Water Management District (Fla.), Everglades (Fla.), Florida -- Environmental conditions, Water resources development -- Environmental aspects -- Florida, Oral histories --Florida, Oral history
- Format
- Set of related objects
- Title
- Domestic Water in Northern Trinidad: Access, Collection and Quality.
- Creator
- Lakhan, Siana, Fadiman, Maria, Root, Tara L., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
- Abstract/Description
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Trinidad is highly dependent on surface water as a source for domestic water supply. Due to lack of infrastructure some areas have limited access to potable/reliable source of water. Increases in industrialization and population are putting more pressure on water resources, exacerbating the problem. Part of this study looks at how, and from where people in different geographic regions in northern Trinidad collect and store water. Results indicate that urban areas rely on public water as a...
Show moreTrinidad is highly dependent on surface water as a source for domestic water supply. Due to lack of infrastructure some areas have limited access to potable/reliable source of water. Increases in industrialization and population are putting more pressure on water resources, exacerbating the problem. Part of this study looks at how, and from where people in different geographic regions in northern Trinidad collect and store water. Results indicate that urban areas rely on public water as a water source. The urban fringe relies on a public water supply as well as self-supplied sources. Rural regions depend solely on a selfsupply source. Also, I look at how nitrate and nitrite concentrations in drinking water vary with geographic location. Results indicate water quality varies with source and collection method. Further research is needed to confirm this.
Show less - Date Issued
- 2007
- PURL
- http://purl.flvc.org/fau/fd/FA00000785
- Format
- Document (PDF)
- Title
- INTERGOVERNMENTAL RELATIONS AS SEEN BY FLORIDA STATE LEGISLATORS: LAND-USE AND WATER RESOURCE PROBLEMS.
- Creator
- HAMM, KEITH EDWARD., Florida Atlantic University, Thomas, Robert D., Dorothy F. Schmidt College of Arts and Letters, Department of Political Science
- Abstract/Description
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The major purposes of this study are (1) to ascertain legislators' perceptions of intergovernmental relations for policy issues and (2) to seek an explanation for these perceptions. The central focus of this thesis is on the 1972 Florida Legislature. Specifically, the focus is on the legislators' perceptions with regard to land use and water resource problems in Florida.
- Date Issued
- 1973
- PURL
- http://purl.flvc.org/fcla/dt/13572
- Subject Headings
- Legislators--Florida--Attitudes, Land use--Law and legislation--Florida, Water resources development--Law and legislation--Florida, Water--Pollution--Law and legislation--Florida
- Format
- Document (PDF)