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Title: Geochemical conditions and groundwater-surface interactions within a municipal well field in Miami-Dade County, Florida.
Creator: Antolino, Dominick J., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: This thesis presents a preliminary study on geochemical conditions within the Snapper Creek well field in Miami-Dade County, Florida. The study investigates the background groundwater chemistry within the Biscayne aquifer in order to provide information on the geochemical processes and water-rock interactions within the study site. In conjunction with hydraulic gradient information, major ion chemistry and deuterium and oxygen-18 data were used as environmental tracers to help describe the...
Show moreThis thesis presents a preliminary study on geochemical conditions within the Snapper Creek well field in Miami-Dade County, Florida. The study investigates the background groundwater chemistry within the Biscayne aquifer in order to provide information on the geochemical processes and water-rock interactions within the study site. In conjunction with hydraulic gradient information, major ion chemistry and deuterium and oxygen-18 data were used as environmental tracers to help describe the groundwater-surface water interactions between the well field and the Snapper Creek canal. Hydrologic data show there is potential for natural groundwater recharge from the canal within the shallow flow zone of the Biscayne aquifer and chemical data show evidence of canal-groundwater mixing within this zone. The limitations for the v environmental tracers employed within the study are addressed, as well as recommendations for further research involving natural geochemical tracers and groundwater-surface water interactions near municipal well fields. This study was part of a larger effort being conducted by the U.S. Geological Survey in order to assess municipal well field pumping effects on the Snapper Creek (C-2) canal.
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Date Issued: 2011
PURL: http://purl.flvc.org/FAU/3329830
Subject Headings: Groundwater flow, Simulations, Groundwater flow, Hydrogeology, Aquifiers
Format: Document (PDF)

Title: A comparison of pixel based and object based vegetation community classification in the Arthur R. Marshall Loxahatchee National Wildlife Refuge.
Creator: Barone, Dorianne M., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Pixel based and object based vegetation community classification methods were performed using 30 meter spatial resolution Landsat satellite imagery of the Arthur R. Marshall Loxahatchee National Wildlife Refuge (Refuge), a remnant of the northern Everglades. Supervised classification procedures using maximum likelihood and parallelepiped algorithms were used to produce thematic maps with the following vegetation communities : wet prairie, sawgrass, cattail, tree island, brush, aquatic/open...
Show morePixel based and object based vegetation community classification methods were performed using 30 meter spatial resolution Landsat satellite imagery of the Arthur R. Marshall Loxahatchee National Wildlife Refuge (Refuge), a remnant of the northern Everglades. Supervised classification procedures using maximum likelihood and parallelepiped algorithms were used to produce thematic maps with the following vegetation communities : wet prairie, sawgrass, cattail, tree island, brush, aquatic/open water. Spectral data, as well as NDVI, texture and principal component data were used to produce vegetation community classification maps. The accuracy levels of the thematic maps produced were calculated and compared to one another. The pixel based approach using the parallelepiped classification algorithm on the spectral and NDVI dataset had the highest accuracy level. A generalized form of this classification using only three vegetation communities (all wet prairie, tree island/brush and aquatic/open water) was compared to a previously published classification which used 1987 SPOT imagery in order to extract information on possible vegetation community transitions that are occurring within the Refuge. Results of the study indicate that 30 meter spatial resolution may be useful for understanding broad vegetation community trends but not species level trends. Pixel based procedures provide a more accurate classification than object based procedures for this landscape when using 30 meter imagery. Lastly, since 1987 there may be a trend of tree island/brush communities replacing wet prairie communities in the northern part of the Refuge and a transition to wet prairie communities in place of tree island/brush communities in the southern portion of the Refuge.
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Date Issued: 2008
PURL: http://purl.flvc.org/FAU/58002
Subject Headings: Ecosystem management, Vegetation dynamics, Vegetation classification, Spatial ecology, Mathematical models
Format: Document (PDF)

Title: Mapping the Fresh-Saltwater Transition Zone Across the Beach Environment Using Ground-Penetrating Radar (GPR).
Creator: Becker, Joseph Michael, Roberts Briggs, Tiffany, Comas, Xavier, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: As sea level rises, saltwater migration can threaten coastal ecosystems and beach-dune environments, which negatively impacts coastal flora. This study uses ground penetrating radar (GPR) to evaluate the spatiotemporal variability of saltwater migration in the near shore at high lateral resolution (i.e. cm) by using daily micro tidal cycles as analogs to infer saltwater migration. Time-lapse GPR profiles were collected at low and high tide capturing phase lags of the tidal flux through...
Show moreAs sea level rises, saltwater migration can threaten coastal ecosystems and beach-dune environments, which negatively impacts coastal flora. This study uses ground penetrating radar (GPR) to evaluate the spatiotemporal variability of saltwater migration in the near shore at high lateral resolution (i.e. cm) by using daily micro tidal cycles as analogs to infer saltwater migration. Time-lapse GPR profiles were collected at low and high tide capturing phase lags of the tidal flux through different substrates. GPR measurements were collected at two sites in Miami with contrasting lithologies: a) Crandon Park, composed of unconsolidated sand; and b) the Barnacle Historic State Park, composed of the Miami Limestone Formation. Laboratory-scale GPR measurements were collected over samples mimicking field conditions. The results may be helpful to identify regions vulnerable to saltwater migration in the near shore based on lithological variability, and to mitigate negative impacts for flora in beach-dune habitats during sea level rise.
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Date Issued: 2019
PURL: http://purl.flvc.org/fau/fd/FA00013183
Subject Headings: Ground penetrating radar, Saltwaters, Seashore ecology, Coastal ecology
Format: Document (PDF)

Title: Population projection methods: A critique for minor civil divisions.
Creator: Benedict, Craig Neil., Florida Atlantic University, Schultz, Ronald R., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: This paper presents a comprehensive population projection framework for small area population estimates and projections. Interested professionals can learn a progression of research tasks and considerations that will lead to the development of a reliable projection model. This monograph offers a range of technical aspects from simple non-component to more complex component methodologies. The idiosyncrasies of small area projections will be emphasized. There exists a significant demand for...
Show moreThis paper presents a comprehensive population projection framework for small area population estimates and projections. Interested professionals can learn a progression of research tasks and considerations that will lead to the development of a reliable projection model. This monograph offers a range of technical aspects from simple non-component to more complex component methodologies. The idiosyncrasies of small area projections will be emphasized. There exists a significant demand for simple, relevant substate population projections. Local public and private planning sectors have suffered from the irrelevance of national projection models. This thesis illuminates the data requirements, techniques and practical considerations in the choice of a population projection model. Local government's comprehensive plans, according to Florida law, must analyze existing conditions and project future needs based on population projections. Many pragmatic applications of population projections can lead to the effective implementation of comprehensive plans.
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Date Issued: 1990
PURL: http://purl.flvc.org/fcla/dt/14679
Subject Headings: Population forecasting--Florida, Population forecasting--Models
Format: Document (PDF)

Title: VISUAL RESOURCE ASSESSMENT: A COMPARISON OF TWO APPROACHES.
Creator: BERNSTEIN, ARLA GAIL., Florida Atlantic University, Schultz, Ronald R., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: This thesis investigates and applies methods for evaluating the visual landscape for scenic and recreational purposes. Two specific approaches--the METLAND (quantitative) approach and the McHarg (qualitative) approach--are applied to a case study of two sites in Broward County, Florida. Data sources for the study include Florida Land Use and Cover Classification maps, the Vegetation Inventory for Broward County, and a survey of professional evaluators. Visual resource assessment of these...
Show moreThis thesis investigates and applies methods for evaluating the visual landscape for scenic and recreational purposes. Two specific approaches--the METLAND (quantitative) approach and the McHarg (qualitative) approach--are applied to a case study of two sites in Broward County, Florida. Data sources for the study include Florida Land Use and Cover Classification maps, the Vegetation Inventory for Broward County, and a survey of professional evaluators. Visual resource assessment of these sites is illustrated through a step by step process and should provide a basis for future assessment of additional sites. The McHarg approach is found to be more expeditious for small scale studies, while the METLAND approach is more efficient for multi-objective or regional analysis. Also, the METLAND quantitative approach increases the objectivity of assessment. The final chapter evaluates the two approaches used and provides recommendations for future research in the area of visual resource assessment.
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Date Issued: 1982
PURL: http://purl.flvc.org/fcla/dt/14104
Subject Headings: Landscape assessment
Format: Document (PDF)

Title: Examining the relationship between urban green space and sustainable cities.
Creator: Bloise, Gillian., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Urban green space plays a vital role in the stability of the environment. Green spaces are increasingly becoming an integral part of the efforts to promote sustainability because of the different areas of benefits they provide. Sustainable city ranking systems were used to identify the most sustainable urban extents within the US. Landsat TM 4-5 imagery and textural classification are used as techniques in identifying, classifying and analyzing urban green spaces within nineteen urban extents...
Show moreUrban green space plays a vital role in the stability of the environment. Green spaces are increasingly becoming an integral part of the efforts to promote sustainability because of the different areas of benefits they provide. Sustainable city ranking systems were used to identify the most sustainable urban extents within the US. Landsat TM 4-5 imagery and textural classification are used as techniques in identifying, classifying and analyzing urban green spaces within nineteen urban extents. Patch analyst was used to analyze the location, structure and fragmentation green spaces within each urban extent. The aim is to determine to what degree urban green spaces can be considered to be an integral part of the sustainability of sustainable urban extents across the US and ascertain whether or not more sustainable urban extents do have more urban green spaces. The results of the study have shown that urban extents that are ranked highly v on sustainable ranking systems do not necessarily have to have large proportion of green spaces. Results have also shown that urban extents that are ranked high on sustainable rankings will not necessarily be affected by increase in population or decrease in urban green space. Finally human modified green spaces have simple geometric shapes compared to natural unaltered green spaces that have more complex geometric shapes.
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Date Issued: 2013
PURL: http://purl.flvc.org/FAU/3360771
Subject Headings: City planning, Environmental aspects, Urbanization, Environmental aspects, Urban ecology (Sociology), Human ecology, Sustainable development, Urban beautification
Format: Document (PDF)

Title: High Spatial Resolution Measurements Using Hydrogeophysical Methods Reveal the Presence of Hotspots forBbiogenic Gas Accumulation and Release in the Florida Everglades.
Creator: Bole, Troy, Comas, Xavier, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: It is well known that biogenic gas emissions (mainly methane and carbon dioxide) vary both spatially and temporally in peatlands. While most studies have focused on northern systems, several recent studies in tropical and subtropical peatlands (like the Everglades) have revealed the presence of areas of increased gas accumulation and emissions, or hotspots, that may be related to physical and/or biogeochemical changes within the peat's matrix. However, these studies are often limited in terms...
Show moreIt is well known that biogenic gas emissions (mainly methane and carbon dioxide) vary both spatially and temporally in peatlands. While most studies have focused on northern systems, several recent studies in tropical and subtropical peatlands (like the Everglades) have revealed the presence of areas of increased gas accumulation and emissions, or hotspots, that may be related to physical and/or biogeochemical changes within the peat's matrix. However, these studies are often limited in terms of sampling volume and resolution or are based in laboratory studies that may not be totally representative of field conditions. In this study we investigate the spatial variability (both lateral and vertical) in gas accumulation and release at the field scale, over 10 m long transects at two locations in Water Conservation Area 1 of the Florida Everglades, using an array of hydrogeophysical methods. Resulting data infers the presence of hotspots with dimensions ranging from 1-2 m in width and approximately 0.5 m tall. These areas showed high variations in biogenic gas accumulation and release an order of magnitude higher than surrounding areas and occur seasonally as the highest gas releases were observed during Florida’s wet season. This study therefore has implications for better understanding the spatial and temporal variability of biogenic gas hotspots in peat soils, and how the matrix structure affects gas accumulation and release. This study shows the importance of considering the heterogenous nature of the peat's matrix when quantifying gas fluxes in the Everglades, and particularly when using methods with small sampling volumes like gas chambers.
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Date Issued: 2019
PURL: http://purl.flvc.org/fau/fd/FA00013189
Subject Headings: Everglades (Fla. ), Biogenic gas, Peatlands, Measurement
Format: Document (PDF)

Title: Perceived risk versus actual risk to sea-level rise: a case study in Broward County, Florida.
Creator: Bolter, Keren P., Hindle, Tobin, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Global climate change stressors downscale to specific local vulnerabilities, requiring customized adaptation strategies. Southeast Florida has a high likelihood of sealevel rise impact to due to the low-lying porous limestone geology. High risk is coupled with high exposure due to high-valued coastal properties, productive ecosystems, and dense populations. Coastal populations are particularly at risk due to erosion, inundation and storm surge, but interior populations are also susceptible to...
Show moreGlobal climate change stressors downscale to specific local vulnerabilities, requiring customized adaptation strategies. Southeast Florida has a high likelihood of sealevel rise impact to due to the low-lying porous limestone geology. High risk is coupled with high exposure due to high-valued coastal properties, productive ecosystems, and dense populations. Coastal populations are particularly at risk due to erosion, inundation and storm surge, but interior populations are also susceptible to rising water tables and extended periods of inundation. All of these impacts are amplified by sea-level rise. Robust sea-level rise adaptation options require significant economic costs. If perceived risk does not adequately line up with actual risk, lack of funds and preparation will prevent implementation of the most effective strategies.
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004268, http://purl.flvc.org/fau/fd/FA00004268
Subject Headings: Climatic changes -- Florida -- Broward County -- Case studies, Coastal ecology -- Florida -- Broward County -- Case studies, Coastal zone management -- Florida -- Broward County -- Case studies, Hazardous geographic environments -- Florida -- Broward County -- Case studies, Sea level -- Florida -- Broward County -- Case studies
Format: Document (PDF)

Title: Mapping urban growth in Boca Raton Florida, over a thirty year period.
Creator: Breary, Gillian., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: The rapid increase of urban growth is a major issue for many regions around the world, which result in astounding loss in farmlands and increase in population densities. It important that urban growth be monitored as it will aid the local government in implementing the appropriate measures for a growing population. The city of Boca Raton, Florida, is the case study for this research. A multi-temporal analysis is done of five Landsat satellite images over a thirty year time period, 1973-2002....
Show moreThe rapid increase of urban growth is a major issue for many regions around the world, which result in astounding loss in farmlands and increase in population densities. It important that urban growth be monitored as it will aid the local government in implementing the appropriate measures for a growing population. The city of Boca Raton, Florida, is the case study for this research. A multi-temporal analysis is done of five Landsat satellite images over a thirty year time period, 1973-2002. Textural analysis was performed on each of the images, to delineate the urban areas. Three by-products resulted from the textural analysis: time series tinted overlays, dasymetric mapping and a series of animated maps, showing the movement of growth across the landscape through time. All the resulting products of the time series analysis were used to show the magnitude and direction of growth over time.
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Date Issued: 2008
PURL: http://purl.flvc.org/fcla/dt/172668
Subject Headings: Urbanization, Cities and towns, Community development, Urban, Regional planning
Format: Document (PDF)

Title: Alternative uses for urban landfill sites as illustrated by the city of Lake Worth, Florida.
Creator: Breese, Edgar Floyd., Florida Atlantic University, Schultz, Ronald R., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Today, many municipalities are confronted with a situation whereby their landfills are facing mandatory closure. The topic of post-closure uses for these sites is addressed in this paper through a review of other closed sites and an indepth analysis of the two study sites in Lake Worth, Florida. The review of converted sites indicates a strong preference of municipalities to transform these trash sites into recreational facilities. The indepth analysis of the two study sites involved an...
Show moreToday, many municipalities are confronted with a situation whereby their landfills are facing mandatory closure. The topic of post-closure uses for these sites is addressed in this paper through a review of other closed sites and an indepth analysis of the two study sites in Lake Worth, Florida. The review of converted sites indicates a strong preference of municipalities to transform these trash sites into recreational facilities. The indepth analysis of the two study sites involved an examination of the closure restrictions, inherent characteristics of landfills including the creation of methane gas, possible groundwater contamination and settlement of the waste, and inventory of surrounding land uses including history and current site conditions. This analysis concluded that a recreational conversion at both sites was not only feasible but the best use for the two sites resulting in the development of two conceptual plans for each location.
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Date Issued: 1988
PURL: http://purl.flvc.org/fcla/dt/14430
Subject Headings: Land use, Urban--Florida--Lake Worth, Sanitary landfills--Florida--Lake Worth
Format: Document (PDF)

Title: Use of Ground Penetrating Radar (GPR) in a Study on Beach Morphodynamics at Red Reef Beach, Boca Raton, Florida.
Creator: Camara dos Santos Porto, Sabrina, Briggs, Tiffany Roberts, Comas, Xavier, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: The internal architecture of a beach system can provide clues into the processes involved in its formation, including depositional processes, and/or driving mechanisms (Billy et al., 2014). Several unique events such as cold fronts or Hurricane Irma caused conditions that resulted in erosion and accretion changes in Red Reef Beach - Boca Raton, throughout the year of 2017. Since the lateral extent of these changes is difficult to evaluate using traditional methods such as coring, a Ground...
Show moreThe internal architecture of a beach system can provide clues into the processes involved in its formation, including depositional processes, and/or driving mechanisms (Billy et al., 2014). Several unique events such as cold fronts or Hurricane Irma caused conditions that resulted in erosion and accretion changes in Red Reef Beach - Boca Raton, throughout the year of 2017. Since the lateral extent of these changes is difficult to evaluate using traditional methods such as coring, a Ground Penetrating Radar (GPR) was tested, which allows for a good lateral resolution (cm scale), to image the distribution and evolution of these sediments. The objectives of this study were to 1) explore the lateral variability in the internal architecture of sediments in Red Reef beach in Boca Raton (FL) using an array of ground penetrating radar (GPR) measurements constrained with coring and sediment analysis; 2) explore how dynamics of erosion and accretion induced by changes in wave activity and related to tide variation and storm events, may affect surface topography and the sedimentary internal architecture of beach deposits, using RTK GPS and GPR time-lapse measurements; 3) to explore changes in the lateral extent of the freshsaltwater interface along the beach profile in relation to tide variation and storm events. Reflectors identified in the GPR images showed some evidence of erosional and accretionary surfaces preserved in Red Reef beach. These measurements were repeated over time coinciding with certain events (such as Hurricane Irma) to explore their effects in terms of sediment erosion and accretion as reflected in changes in topography (using time-lapse GPS-RTK measurements), and changes in the internal sedimentary architecture (using time-lapse GPR measurements). The datasets collected also revealed the temporal evolution of the salt-freshwater interface, showing how the lateral extent of saltwater saturated sediment (inferred from areas of GPR signal attenuation along the profiles) evolved over time. This study shows the potential of GPR to provide information about beach sediment processes and dynamics at resolutions beyond traditional measurements (such as coring). It also shows the importance of combining methods that are complementary, such as the use of RTK GPS to explore changes in topography, and GPR that provides information on subsurface sedimentary architecture and the mechanism of change such as post-storm recovery. This study has implications for better understanding changes in coastal sedimentary deposits and processes, both at the subsurface, particularly after high-energy events, such as hurricanes, that result in rapid changes in erosion and/or accretion of sediments.
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Date Issued: 2017
PURL: http://purl.flvc.org/fau/fd/FA00005947
Subject Headings: Dissertations, Academic -- Florida Atlantic University, Beaches--Florida, Ground penetrating radar., Sediments (Geology)--Analysis.
Format: Document (PDF)

Title: MIGRATION TO SOUTHEAST FLORIDA, 1965-70.
Creator: CAMARCO, THOMAS JOSEPH, JR., Florida Atlantic University, Schultz, Ronald R., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: The objective of this thesis was to understand and model the patterns of internal migration to Southeast Florida in terms of spatial, demographic, social, economic, and climatic factors. First, a review of migration theory and research was made. Second, migration is described in terms of the total components of population change in Southeast Florida. Third, aggregate migration, i.e., migration flows, are described and then modeled in gravity model formulations. Fourth, the proportion of...
Show moreThe objective of this thesis was to understand and model the patterns of internal migration to Southeast Florida in terms of spatial, demographic, social, economic, and climatic factors. First, a review of migration theory and research was made. Second, migration is described in terms of the total components of population change in Southeast Florida. Third, aggregate migration, i.e., migration flows, are described and then modeled in gravity model formulations. Fourth, the proportion of migrants, i.e., migration rates, are described and modeled using multiple linear regression and principle components analysis. Finally the results obtained are conceptualized in terms of the migrant's decision to migrate to Southeast Florida.
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Date Issued: 1976
PURL: http://purl.flvc.org/fcla/dt/13780
Subject Headings: Migration, Internal--Florida
Format: Document (PDF)

Title: PLANNING IMPLICATIONS OF THE DIFFERENCES AMONG SQUATTER SETTLEMENTS: THECASE OF THE CARACAS BARRIOS.
Creator: CAMPBELL, MARIA INES., Florida Atlantic University, Tata, Robert J., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: This thesis analyzes the characteristics of squatter settlements in Latin America and their potential for improvement. Some of the extensive literature on this subject is reviewed with the purpose of achieving insights into the special case of the Caracas barrios (Venezuelan low-income settlements, in their majority populated by squatters). An empirical analysis is carried out of several variables relating to physical development characteristics of the barrios. A Principal Components...
Show moreThis thesis analyzes the characteristics of squatter settlements in Latin America and their potential for improvement. Some of the extensive literature on this subject is reviewed with the purpose of achieving insights into the special case of the Caracas barrios (Venezuelan low-income settlements, in their majority populated by squatters). An empirical analysis is carried out of several variables relating to physical development characteristics of the barrios. A Principal Components technique with Varimax rotation combined with regression analysis shows the diversity of the barrios and the importance of government approval in the upgrading of housing in these urban areas. These findings are important to planners for the prioritization and allocation of resources.
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Date Issued: 1984
PURL: http://purl.flvc.org/fcla/dt/14209
Subject Headings: City planning--Case studies, Squatter settlements--Venezuela--Caracas, Caracas (Venezuela)--Poor
Format: Document (PDF)

Title: Morphology of Astarte borealis (Mollusca: bivalvia) of Camden bay, northern Alaska.
Creator: Chrpa, Michelle E., Oleinik, Anton E., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: The genus Astarte is known for variable shell morphology and polymorphism within living and fossil species. Astarte borealis, the most common living species, is recognizable and common among mid-to-high latitude North Pacific, Arctic Ocean and North Atlantic waters, and has been divided into many subspecies and varieties based on overall shell shape. A collection of recent A. borealis specimens from Camden Bay, northern Alaska (641 specimens) with outline intact were used for analyses....
Show moreThe genus Astarte is known for variable shell morphology and polymorphism within living and fossil species. Astarte borealis, the most common living species, is recognizable and common among mid-to-high latitude North Pacific, Arctic Ocean and North Atlantic waters, and has been divided into many subspecies and varieties based on overall shell shape. A collection of recent A. borealis specimens from Camden Bay, northern Alaska (641 specimens) with outline intact were used for analyses. Bivariate analysis of height vs. length and morphometric analysis of shell outline determined variants within a population of A. borealis, and then compared to Pliocene A. borealis and Oligocene A. martini. The computer program SHAPE uses elliptic Fourier coefficients of shell outline to evaluate and visualize shape variations. The multivariate outline analysis indicates that A. borealis intraspecies variation is based upon a common shape that grades into other shapes, rather than grade between two or more end-forms.
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Date Issued: 2013
PURL: http://purl.flvc.org/fau/fd/FA0004010
Subject Headings: Bivalves -- Alaska -- Camden Bay -- Geographical distribution, Mollusks, Fossil -- Alaska -- Camden Bay -- Morphology
Format: Document (PDF)

Title: From photo interpretation to GIS: Data quality assessments.
Creator: Conaway, Michael D., Florida Atlantic University, Roberts, Charles, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Much of the recent research concerning the use of GIS has revolved around data quality. Types of errors inherent in GIS data layers, and also errors that may be produced through the creation and manipulation of data layers have been identified. Definitions of these errors, and observations of how these errors occur have been offered. However, the majority of the research is qualitative. It is known that positional variation is produced through differing interpretations and generalization of...
Show moreMuch of the recent research concerning the use of GIS has revolved around data quality. Types of errors inherent in GIS data layers, and also errors that may be produced through the creation and manipulation of data layers have been identified. Definitions of these errors, and observations of how these errors occur have been offered. However, the majority of the research is qualitative. It is known that positional variation is produced through differing interpretations and generalization of points, lines, and polygons, but it is not known to what extent. This information would be extremely helpful in allowing the user of the information to fine tune the application, based on the accuracy of the data. Providing this type of information is the goal of this research. Quantitative analysis of the results of a series of experiments will give a numerical range of possible positional errors produced through database creation via aerial photo interpretation.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15280
Subject Headings: Geographic information systems, Remote sensing--Data processing, Image processing, Photographic interpretation
Format: Document (PDF)

Title: Increasing Integrity in Sea-Level Rise Impact Assessment on Florida’s Coastal Everglades.
Creator: Cooper, Hannah M., Zhang, Caiyun, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Over drainage due to water management practices, abundance of native and rare species, and low-lying topography makes the coastal Everglades especially vulnerable to Sea-Level Rise (SLR). Water depths have shown to have a significant relationship to vegetation community composition and organization while also playing a crucial role in vegetation health throughout the Everglades. Modeling potential habitat change and loss caused by increased water depths due to SLR requires better vertical...
Show moreOver drainage due to water management practices, abundance of native and rare species, and low-lying topography makes the coastal Everglades especially vulnerable to Sea-Level Rise (SLR). Water depths have shown to have a significant relationship to vegetation community composition and organization while also playing a crucial role in vegetation health throughout the Everglades. Modeling potential habitat change and loss caused by increased water depths due to SLR requires better vertical Root Mean Square Error (RMSE) and resolution Digital Elevation Models (DEMs) and Water Table Elevation Models (WTEMs). In this study, an object-based machine learning approach was developed to correct LiDAR elevation data by integrating LiDAR point data, aerial imagery, Real Time Kinematic (RTK)-Global Positioning Systems (GPS) and total station survey data. Four machine learning modeling techniques were compared with the commonly used bias-corrected technique, including Random Forest (RF), Support Vector Machine (SVM), k-Nearest Neighbor (k-NN), and Artificial Neural Network (ANN). The k-NN and RF models produced the best predictions for the Nine Mile and Flamingo study areas (RMSE = 0.08 m and 0.10 m, respectively). This study also examined four interpolation-based methods along with the RF, SVM and k-NN machine learning techniques for generating WTEMs. The RF models achieved the best results for the dry season (RMSE = 0.06 m) and the wet season (RMSE = 0.07 m) WTEMs. Previous research in Water Depth Model (WDM) generation in the Everglades focused on a conventional-based approach where a DEM is subtracted from a WTEM. This study extends the conventional-based WDM approach to a rigorous-based WDM technique where Monte Carlo simulation is used to propagate probability distributions through the proposed SLR depth model using uncertainties in the RF-based LiDAR DEM and WTEMs, vertical datums and transformations, regional SLR and soil accretion rates. It is concluded that a more rigorous-based WDM technique increases the integrity of derived products used to support and guide coastal restoration managers and planners concerned with habitat change under the challenge of SLR. Future research will be dedicated to the extension of this technique to model both increased water depths and saltwater intrusion due to SLR (saltwater inundation).
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Date Issued: 2018
PURL: http://purl.flvc.org/fau/fd/FA00005991
Subject Headings: Everglades (Fla.), Sea level rise, Coastal ecology--Florida, Everglades (Fla)--Environmental conditions, Impact assessment
Format: Document (PDF)

Title: The geography of airfares: modeling market and spatial forces in the U.S. Airline Industry.
Creator: Cordoba, Hilton A., Ivy, Russell L., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: The deregulation of the airline industry created a myriad of changes in the U.S. air transport system that has both defended and sparked debate on the wisdom of such policy change for over three decades. One of the promises of deregulation from its proponents in the 1970s was increased competition that would lead to a reduction in fares for consumers. Historic data and literature has indeed shown this to be to the case as average airfares have trended downward especially over the last twenty...
Show moreThe deregulation of the airline industry created a myriad of changes in the U.S. air transport system that has both defended and sparked debate on the wisdom of such policy change for over three decades. One of the promises of deregulation from its proponents in the 1970s was increased competition that would lead to a reduction in fares for consumers. Historic data and literature has indeed shown this to be to the case as average airfares have trended downward especially over the last twenty years. Nonetheless, the industry has become much more complex since deregulation in terms of pricing to the point that very sophisticated yield management computer models are used to achieve an optimum balance between load factors and price. Consequently, this has in turn translated into a haphazard experience for most air travelers in the United States; for instance, the cost of a ticket is sometimes lower traveling from coast to coast than within a particular region of the U.S. and paid fares for the exact same trip can deviate dramatically, often based on variation in the date of purchase. Additionally, this has also resulted in a spatial pattern where certain regions throughout the country have enjoyed lower airfares more so than others. This research seeks to identify this regional disparity using a geographically weighted regression and spatial autoregressive models in a sample of 6,200 routes between 80 primary U.S. airports. The results from the global model showed that variables which measure competition (airlines), operating cost (flights, distance) and elasticity (layover time) proved to be statistically significant and had a positive relationship with airfare The GWR results indicated that while some factors like distance, and hub size, were statistically significant almost nationwide, other factors such as frequency, presence of low cost carriers, and numbers of airlines were only statistically significant at certain airports. Finally, the spatial regressions models indicate that the spatial autocorrelation found in U.S. airfares resemble the first order properties of spatial autocorrelation (i.e. spatial heterogeneity) and not the second order properties (i.e. spatial dependence).
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004188, http://purl.flvc.org/fau/fd/FA00004188
Subject Headings: Aeronautics, Commercial -- Deregulation, Airlines -- Deregulation -- United States, Airlines -- Management, Airlines -- Rates, Airlines -- United States -- Cost of operation, Economic geography
Format: Document (PDF)

Title: Cultural and spatial perceptions of Miami's Little Havana.
Creator: Cordoba, Hilton A., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: Miami's "Little Havana" is known by many for its famous Southwest 8th Street, the Calle Ocho festival, and for the many Latin people, particularly Cubans, that live in the area. However, the current name of the neighborhood hides all of the dynamics of neighborhood change and creates the notion that Little Havana is a static monoculture neighborhood. This study measured people's perception of Little Havana by surveying 153 residents to identify the cultural associations and to capture the...
Show moreMiami's "Little Havana" is known by many for its famous Southwest 8th Street, the Calle Ocho festival, and for the many Latin people, particularly Cubans, that live in the area. However, the current name of the neighborhood hides all of the dynamics of neighborhood change and creates the notion that Little Havana is a static monoculture neighborhood. This study measured people's perception of Little Havana by surveying 153 residents to identify the cultural associations and to capture the participant's spatial perceptions of Little Havana. This study found that survey participants from inside the study area associated Little Havana more with Cuban culture and had more positive things to say about the neighborhood. Finally, this study suggests that the core of Little Havana was encompassed by West Flagler Street on the north, Southwest 8th Street on the south, Southwest 27th Avenue on the west, and Southwest 4th Avenue on the east.
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Date Issued: 2011
PURL: http://purl.flvc.org/FAU/3174508
Subject Headings: Cuban Americans, Social life and customs, History, Description and travel, Social life and customs
Format: Document (PDF)

Title: Moving towards Societal Geographic Information Systems through the Internet: Data access alternatives.
Creator: Cottrell, David G., Florida Atlantic University, Shaw, Shih-Lung, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: With the advent of Geographic Information Systems and Geographic Information Science (GIS) over the last 20 years, the field of Geography, mainly the applied sector, has gained increased recognition world wide. Along with this has come an increased ability and need for the sharing of geographic data. This thesis will investigate the various means currently available to facilitate data sharing, including the availability of geographic data distributed throughout the Internet. A number of World...
Show moreWith the advent of Geographic Information Systems and Geographic Information Science (GIS) over the last 20 years, the field of Geography, mainly the applied sector, has gained increased recognition world wide. Along with this has come an increased ability and need for the sharing of geographic data. This thesis will investigate the various means currently available to facilitate data sharing, including the availability of geographic data distributed throughout the Internet. A number of World Wide Web sites providing geographic data were chosen as a representative cross section of the current functionality available on the Internet. This document is intended to be used as a guide for more effective implementation of World Wide Web "GIS" sites and aid in conceptualizing the Internet as a Societal GIS.
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Date Issued: 1996
PURL: http://purl.flvc.org/fcla/dt/15281
Subject Headings: Geographic information systems--Computer network resources, Cartography--Computer network resources, World Wide Web, Internet
Format: Document (PDF)

Title: Mollusks of the late Pleistocene oèolitic facies of the Miami Limestone in the Miami-Dade County, South Florida.
Creator: D'Antonio, Heather M., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description: The oèolitic limestone that makes up the bedrock of Miami-Dade and parts of Broward County, Florida, is a relatively well studied formation, with poorly studied fossil content. No published systematic record of Pleistocene fossils in the Miami Limestone is available. Besides the basic knowledge of taxonomy and biodiversity of the mollusks, comparison with extant assemblages can yield important information about the biodiversity changes in southern Florida during the past ~130,000 years....
Show moreThe oèolitic limestone that makes up the bedrock of Miami-Dade and parts of Broward County, Florida, is a relatively well studied formation, with poorly studied fossil content. No published systematic record of Pleistocene fossils in the Miami Limestone is available. Besides the basic knowledge of taxonomy and biodiversity of the mollusks, comparison with extant assemblages can yield important information about the biodiversity changes in southern Florida during the past ~130,000 years. Preliminary surveys of several localities, both previously described and new, within the Dade County yielded a record of diverse mollusks from over 28 families, 34 genera and 40 species. The preliminary findings of molluscan fossils have led to a new, unstudied and unpublished fossil locality with the second discovery of a possible Strombus costatus in the Miami Limestone. Miami Limestone fossils are being compared to recent South Florida mollusks indicating patterns of local diversification and extinction related to the minor changes in sea level and disappearance of certain habitats such as the rocky shore substrates that Cittarium pica once thrived on.
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Date Issued: 2012
PURL: http://purl.flvc.org/FAU/3342045
Subject Headings: Mollusks, Fossil, Limestone, Geology, Stratigraphic
Format: Document (PDF)

Current FAU Student Theses and Dissertations 2007 to date (76)	+ -
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Geomorphological mapping--Florida--Broward County (1)	+ -
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