Physical and Environmental Geography Commons^™

A Plotless Density Estimator Based On The Asymptotic Limit Of Ordered Distance Estimation Values, Barry J. Kronenfeld

Barry J. Kronenfeld

Estimation of tree density from point-tree distances is an attractive option for quick inventory of new sites, but estimators that are unbiased in clustered and dispersed situations have not been found. Noting that bias of an estimator derived from distances to the kth nearest neighbor from a random point tends to decrease with increasing k, a method is proposed for estimating the limit of an asymptotic function through a set of ordered distance estimators. A standard asymptotic model is derived from the limiting case of a clustered distribution. The proposed estimator is evaluated against 13 types of simulated generating processes, …

An Evaluation Of The Effect Of Land Use/Cover Change On The Surface Temperature Of Lokoja Town, Nigeria, Fanan Ujoh Mr, Olarewaju O. Ifatimehin Mr, John Y. Magaji Dr

Dr. Fanan Ujoh

This research integrated remote sensing and Geographic Information Systems (GIS) to identified land use/cover types in Lokoja, including their temporal transformation and association with surface temperatures from the LandSat TM and LandSat ETM imageries of 1987 and 2001 respectively. As the built-up area increased in size (2667.6%) so was the surface temperature (6.48oC), vacant land (872%: 9.65oC), cultivated land (104.4%: 1.2oC) and water bodies (64.3%:0.94oC) while vegetation cover increased by 2.44oC while its area extent decreased (316.7%). These changes were responsible for the rise in the mean surface temperature from 38.39oC in 1987 to 42.61oC in 2001, indicating a 4.22oC …

Using Indigenous Knowledge In Land Use Planning And Management: A Participatory Gis Approach, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

An increasing global concern that has been consistently facing the human population today is the declining natural resources especially land resources. Land resources are threatened by the increasing pressures exerted by the expanding human needs and economic activities, and thus impose adverse effect on the environment, biodiversity, and the global climate systems. Information describing the land resources of a region does forms the bases upon which sustainable development can be built. The local people perception of being local with a complex, diverse and uncontrolled problems and tied down to a livelihood that depends mainly on primary production system (utilization of …

The Use Of Computer Intelligent Processing Technologies Among Environmental Scientists In Nigerian Universities, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

This paper assesses the awareness and usage of a novel approach to data and information processing among scientists, researchers and students in the field of environmental sciences. In depth and structured interview was conducted, targeting a population who are working in a variety of environmental issues. The data generated were analysed using simple descriptive statistics. The results indicate that the level of awareness and responsiveness to this approach is very low (26.5%), and computer proficiency is also very low (30.8%). This suggests the need for a vigorous academic reorientation of all stakeholders through conferences, workshops and seminars.

A Gis Analysis On Possible Photovoltaic Cell Use For Energy Reduction During Peak Hours In Huntington, West Virginia, James Eric Tadlock

Theses, Dissertations and Capstones

Solar panels are one of the fastest growing renewable energy technologies. This study aims to identify to what extent roof-mounted solar panels can reduce the need of power provided by Appalachian Power Company. Data from the Reliability First Corporation was employed to determine the individual average household power usage. Three study areas in Huntington, West Virginia, were selected to determine if solar panels could be implemented. Roofs in the study areas were digitized to calculate the available area. Based on the average household usage, four different sized photovoltaic systems were determined. Potential power production was computed to identify any offset …

A Cluster Identification Framework Illustrated By A Filtering Model For Earthquake Occurrences, Zhengxiao Wu

Research Collection School of Economics

A general dynamical cluster identification framework including both modeling and computation is developed.The earthquake declustering problem is studied to demonstrate how this framework applies.A stochastic model is proposed for earthquake occurrences that considers the sequence of occurrencesas composed of two parts: earthquake clusters and single earthquakes. We suggest that earthquake clusterscontain a “mother quake” and her “offspring.” Applying the filtering techniques, we use the solution offiltering equations as criteria for declustering. A procedure for calculating maximum likelihood estimations(MLE’s) and the most likely cluster sequence is also presented.

A Plotless Density Estimator Based On The Asymptotic Limit Of Ordered Distance Estimation Values, Barry Kronenfeld

Faculty Research and Creative Activity

Estimation of tree density from point-tree distances is an attractive option for quick inventory of new sites, but estimators that are unbiased in clustered and dispersed situations have not been found. Noting that bias of an estimator derived from distances to the kth nearest neighbor from a random point tends to decrease with increasing k, a method is proposed for estimating the limit of an asymptotic function through a set of ordered distance estimators. A standard asymptotic model is derived from the limiting case of a clustered distribution. The proposed estimator is evaluated against 13 types of simulated generating processes, …

A Plotless Density Estimator Based On The Asymptotic Limit Of Ordered Distance Estimation Values, Barry J. Kronenfeld

Faculty Research and Creative Activity

Estimation of tree density from point-tree distances is an attractive option for quick inventory of new sites, but estimators that are unbiased in clustered and dispersed situations have not been found. Noting that bias of an estimator derived from distances to the kth nearest neighbor from a random point tends to decrease with increasing k, a method is proposed for estimating the limit of an asymptotic function through a set of ordered distance estimators. A standard asymptotic model is derived from the limiting case of a clustered distribution. The proposed estimator is evaluated against 13 types of simulated generating processes, …

Muis News: Maps And User Imagery Services @ Fiu Green Library Vol. 2, Issue 1 2008, Jill V. Krefft

MIUS News

Florida International University's Fall 2008 Map and User Imagery Services Newsletter.

Comparing Pixel- And Object-Based Classification Methods For Determining Land-Cover In The Gee Creek Watershed, Washington, Tyler Vick

Geography Masters Research Papers

This study analyzes land-cover types in the Gee Creek Watershed of southern Washington using the pixel-based and object-based image analysis approaches. Landsat imagery has traditionally been used for pixel-based classification and change detection in land-cover studies. In recent years, the availability of high-resolution satellite and aerial imagery have enabled for land-cover classification to occur at scales not possible using traditional Landsat imagery. High-resolution aerial imagery of 1 meter or greater has become readily available for free. Yet, commonly found black and white (or panchromatic) aerial imagery is without the multiple spectrum bands found in Landsat imagery, thereby limiting the accuracy …

Application Of Geoninformatic Technology In Evaluating Urban Agriculture And Urban Poverty In Lokoja, Nigeria, Olarewaju Oluseyi Ifatimehin, Salihu Danlami Musa

Olarewaju Oluseyi Ifatimehin

The role of urban agriculture in the food supply of cities and towns, as a complement to rural agriculture is becoming an important issue in a globalizing world economy. The developing countries see it as a way to alleviate urban poverty. Remote sensing and GIS techniques were used to assess areal extent of urban agricultural land in Lokoja. Questionnaires were also used to evaluate the contributions to urban agriculture to food security and income generation among the urban poor in Lokoja. The result revealed that urban agricultural land had increased, thereby implying that urban agriculture is supporting many urban poor …

Suitability Mapping Of Sesame Cultivation In Nigeria, Charles Alegbe

Charles Alegbe

Nigeria as a microcosm of the sub-Saharan Africa has agriculture as her mainstay which provides employment and source of livelihood for the increasing population. Sesame also known as beniseed, which is a very sensitive cash-crop to environmental factors such as rainfall, temperature and soil types; is not an exception as it has become one of the foreign exchange earners for Nigeria. The objective of this project is to use Geographical Information Systems (GIS) as a decision making tools to solving the spatial problems of sesame suitability mapping in Nigeria. Basic GIS operations ranging from spatial to aspatial search, reclassification and …

An Application Of Geoinformatics For Estima Ting Surface Temperature In A Rapidly Developing Urban Area Of Kogi State, Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

This study used remote sensing techniques to estimate surface radiant temperature of Lokoja town from LandSat ETM satellite imagery of 2001. The research was conducted in the phases of Pre-fieldwork, fieldwork and post fieldwork. Data generated from the field and satellite imagery were integrated, analysed, interpreted in a GIS environment. The result indicated that built-up area (336.14 K) and vacant land (321.63 K) exhibit the highest surface radiant temperature, while vegetated surfaces (301.23 K), water bodies (303.06 K) and cultivated land (307.56K) recorded the lowest radiant temperature respectively. Specifically, the resulting land surface temperature was 313.06K. Generally, this approach was …

Geostatistical Approach To The Control Of Typhoid Fever In A Part Of Kogi State, Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Typhoid fever is a common ailment affecting many resident especially the inhabitants of Anyigba. The problem is spatially related to the lack of portable water. The Human Health Risk Analysis methods of SADA (Spatial Analysis and Decision Assistance) software was used to evaluate the health impact of water source. Maps of Anyigba were converted into digital form using Idrisi GIS software and the resulting coverages included hydrological Features, wards, population and environmental pollution in Anyigba. The Water sources were categories into A and B based on the cumulative scores < 5 for A and > for B based on the perceived vulnerability to various contamination. T-test …

A Satellite Remote Sensing Based Land Surface Temperature Retrieval From Landsat Tm Data., Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Land Surface Temperature (LST) of Lokoja town were retrieved from LandSat TM imagery of 1987. The NDVI and land emissivity were estimated from visible and near infrared bands, while the effective satellite temperature was estimated from the thermal infrared band. The Qin et al's mono-window algorithm was employed to obtain the land surface temperatures of the different land use/cover types in Lokoja town. The result indicated that vacant land and built-up have the highest LST values of 331.13K and 329.82K, and vegetation, water bodies and cultivated land having the least with 294.03K, 296.76K and 306.06K respectively. The average retrieved LST …

Remote Sensing And Gis Applications In Urban Expansion And Loss Of Vegetation Cover In Kaduna Town, Northern Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Anthropogenic drivers such as the urbanization and economic dependence have being a major force shaping various landscapes. Kaduna town is no exception of such landscapes. This study uses remote sensing and GIS techniques with survey to identify the various land uses, their various transformations over the a period of 11 years (1990-2000)and to measure the rate of urban expansion and loss of vegetation cover in the study area. The study revealed that built-up area is expanding at about 167.86 hectares annually vegetation covers declining at a faster rate of 297.5 hectares annually. It also revealed that bare land a component …

Application Of Remote Sensing And Gis Techniques In Mapping Areas Favourable For Fadama Farming In Gwagwalada, Abuja, Nigeira, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Because of the important and scarcity of fadama land as well as needs for sustainable development, mapping of areas favourable for fadama farming is likely to be reliable step towards effective fadama farming and rural development in Gwagwalada area. In this study Remote Sensing and GIS techniques were utilized to map out areas that can be favourable for fadama farming. Four steps were followed in mapping areas that are favourable for fadama farming (i) the vector maps were first scanned into Microsoft word software from where it was transferred into the ILWIS GIS software and were digitized on-screen to generate …

The Spatial Pattern Of Commercial Banks In Kogi State Of Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

This study examines the relationship of commercial banks distribution across geographic space and the socio-economic potentials therein. Ground truthing and socio-economic survey were employed to ascertain the number of banks available in each senatorial district of the state and to ascertain the socio-economic profile of the users of these banks respectively. Statistical technique was use in the analysis of market segmentation through factor and cluster analysis, and GIS techniques for spatial analysis. It was discovered that the major factor responsible for the spatial variation in the clustering of banks is the distribution of government owned parastatals and Industries in the …

Characterization And Analysis Of Hailstorms In The Northern Great Plains, Thomas Sando

The Journal of Undergraduate Research

Hail is a meteorological occurrence that appears frequently during spring and summer across the Northern Great Plains. This paper first characterizes patterns associated with reported hail events occurring within a five-state region (North Dakota, Minnesota, South Dakota, Iowa, and Nebraska) from 2000-2006 using records taken from the National Climatic Data Center (NCDC) Severe Storms database. Patterns of interest include the seasonality of hail activity for each state and across the region, observational bias in the reporting of hailstone size, and temporal trends in the number of hail reports across the region and in each state. This paper then explores a …

Mius News: Maps And Imagery User Services @ Fiu Green Library: Vol. 1, Issue 1 2007, Jill V. Krefft

MIUS News

Fall 2007 Newsletter for FIU's Maps and Imagery User Services department.

Applicability Of Satellite Remote Sensing And Gis Techniques And Ground Data In Watershed Planning: The Case Of Kubili, Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Watershed land and hydrology are resources that are very important in agricultural development. Adequate and proper land use planning and management of these resources is of ultimate importance in sustainable development. In this study remote sensing and Geographic Information System (GIS) techniques were used to generate information on the current status and utilization potentials of the Kubili watershed and generate local specific micro watershed development plans for the area. The study revealed that about 33.25 per cent of the land cover is used for rain fed agriculture that lacks sufficient soil and moisture to support good yield. The drainage density …

Gis Aided Archaeological Research Of El Camino Real De Los Tejas With Focus On The Landscape And River Crossings Along El Camino Carretera., Jeffrey M. Williams

Faculty Publications

Many generations of indigenous pathways through the forests of eastern Texas have their origins obscured in antiquity. Utilized by early European explorers, these pathways became modified through heavy use and the expansions and improvements needed to accommodate easy passage of European horses and carts and finally the heavy wagons of Anglo-American settlers. The first road through Texas, El Camino Real de Los Tejas, utilized portions of these early trails.

El Camino Carretera (known as the cart road) is an early segment of El Camino Real de los Tejas that crossed the Sabine River at the boundary between Texas and Louisiana. …

An Assessment Of Urban Heat Island Of Lokoja Town And Surroundings Using Landsat Etm Data., Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

The urban centre and its suburban environment are largely influenced by changes driven by people as a result of urbanization and other anthropogenic activities. Urbanization impacts on air and water quality, local climate and biodiversity. This study assesses the Urban Heat Island (UHI) of Lokoja town and surroundings from LandSat ETM satellite imagery of 2001 using remote sensing techniques. Band 3, 4 and 6 of the imagery were use in the estimation of NDVI, land surface emissivity and surface temperature. The results show that urban heat island in Lokoja town is significant, with average Land surface temperature values range from …

Land Cover Classification And Economic Assessment Of Citrus Groves Using Remote Sensing, Jennifer Gebelein

Jennifer Gebelein

The citrus industry has the second largest impact on Florida's economy, following tourism. Estimation of citrus area coverage and annual forecasts of Florida's citrus production are currently dependent on labor-intensive interpretation of aerial photographs. Remotely sensed data from satellites has been widely applied in agricultural yield estimation and cropland management. Satellite data can potentially be obtained throughout the year, making it especially suitable for the detection of land cover change in agriculture and ...

The Prospects Of Sustainable Management Of Domestic Water Supply And Sanitation In Kogi State., Olarewaju Oluseyi Ifatimehin, Salihu Danlami Musa

Olarewaju Oluseyi Ifatimehin

The ultimate goal of any credible and legitimate government is to ensure sustained improvement in the provision of basic water utility and its effectiveness in the efficient delivery of this service to the citizenry. The importance and implication of efficient delivery of portable water and its management, and also access to hygienic sanitation facilities are of utmost importance to every human sector. Field survey and the review of technical and research literatures were done to generate the data and information used for the study. Simple statistics were used in its analyses and GIS techniques for spatial analysis. It was observed …

Estimation Of The Effects Of Vegetation On Local Climate Using Gis And Remote Sensing Data, Won Hoi Hwang

Theses, Dissertations and Capstones

As one of the effective methods to control urban temperatures, the effects of trees and other vegetation have come into focus. Geographic Information System (GIS) and remote sensing data, Digital Orthophoto Quarter-Quadrangle (DOQQ) and Landsat Thematic Mapper (Landsat TM), have been applied in this study to analyze the UHI. The effect of road-side trees on local micro-climate was examined with in-situ temperature measurement and simulated shade. Regression analyses revealed significant negative slopes for all time periods. This trend continued throughout the entire night until sunrise the next morning. The relationship between thermal patterns and vegetation distributions was investigated using the …

Biodiversity In Space And Time: Towards A Grid Mapping For Mongolia, Michael Stubbe, Annegret Stubbe, Henrik Von Wehrden, Nayamsuren Batsaikhan, Ravčigijn Samjaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In the future, grid mapping of animal and plant organisms will also play a major role in Mongolia. Based on geographical coordinates, a grid with a resolution of 100 x 100 km was created, which contained 561 cells. Methods and level of current understanding are exemplified by means of two raptors and three mammal species. This establishes a basis for an initial project, which will summarize all breeding occurrences of raptors based on all records, publications, or diary notes. For the first time, the short toed eagle was verified in Mongolia as a breeding bird in 2004. By 2006, ten …

How Earth Remote Sensing From The International Space Station Complements Current Satellite‐Based Sensors, Jennifer Gebelein, Dean Eppler

Jennifer Gebelein

The International Space Station (ISS) will provide an Earth‐and space‐observing platform that will support sensors built by 16 different countries and deliver data and images for local, regional and global research. When complete, it will be an exceptional platform for conducting remote sensing of the Earth, astrophysics, and space physics research programmes. Additionally, the ISS will operate as a testbed for engineering studies and complex technological developments that will benefit future Earth‐observing capabilities. ...

The Church As A Tool For Creating Environmental Awareness: A Case Study Of Anyigba Community, Nigeria, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

The ineffectiveness of environmental awareness in the society today has been a major source of concern to stakeholders. Environmental degradation and its problems are increasing geometrically with industrailization and agricultural intensification. This study examines the role of religious organizations especially the church in environmental matters. It x-rayed the level of environmental awareness in the church and suggests how the church can create environmental awareness among its members. Questionnaire were administered and analysed. The study revealed a low level of awareness among members of the church and their willingness to be enlightened on environmental issues. finally, the church accepted to be …

An Analysis Of Urban Expnasion And Loss Of Vegetation Cover In Lokoja, Using Gis Techniques, Olarewaju Oluseyi Ifatimehin

Olarewaju Oluseyi Ifatimehin

Since Lokoja became an administrative headquarters of Kogi State in 1991, it has been experiencing rapid expansion, urbanization and significant changes in its physical landscape – land use and land cover changes. This study uses remote sensing and GIS techniques combined with field checks and survey to map land use and land cover changes and to measure the rate of urban expansion and loss of vegetation in Lokoja between 1987 and 2005. There was a considerable change in land use types over the said period of the study. The built-up area, vacant land, cultivated land and other land use type …