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Spatial Multivariate Cluster Analysis for Defining Target Population of Environments in West Africa for Yam Breeding 西非甘薯育种环境目标种群的空间多元聚类分析
Int. J. Appl. Geospat. Res. Pub Date : 2019-07-01 DOI: 10.4018/IJAGR.2019070104
T. Alabi, P. Adebola, A. Asfaw, D. Koeyer, A. Lopez-Montes, R. Asiedu
{"title":"Spatial Multivariate Cluster Analysis for Defining Target Population of Environments in West Africa for Yam Breeding","authors":"T. Alabi, P. Adebola, A. Asfaw, D. Koeyer, A. Lopez-Montes, R. Asiedu","doi":"10.4018/IJAGR.2019070104","DOIUrl":"https://doi.org/10.4018/IJAGR.2019070104","url":null,"abstract":"Yam (Dioscorea spp.) is a major staple crop with high agricultural and cultural significance for over 300 million people in West Africa. Despite its importance, productivity is miserably low. A better understanding of the environmental context in the region is essential to unlock the crop's potential for food security and wealth creation. The article aims to characterize the production environments into homologous mega-environments, having operational significance for breeding research. Principal component analysis (PCA) was performed separately on environmental data related to climate, soil, topography, and vegetation. Significant PCA layers were used in spatial multivariate cluster analysis. Seven clusters were identified for West Africa; four were country-specific; the rest were region-wide in extent. Clustering results are valuable inputs to optimize yam varietal selection and testing within and across the countries in West Africa. The impact of breeding research on poverty reduction and problems of market accessibility in yam production zones were highlighted.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126515811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Where the R's Are: A Module in Sustainability and Participatory Mapping R在哪里:可持续性和参与式制图的一个模块
Int. J. Appl. Geospat. Res. Pub Date : 2019-04-01 DOI: 10.4018/IJAGR.2019040102
C. L. Campbell, R. Sabie
{"title":"Where the R's Are: A Module in Sustainability and Participatory Mapping","authors":"C. L. Campbell, R. Sabie","doi":"10.4018/IJAGR.2019040102","DOIUrl":"https://doi.org/10.4018/IJAGR.2019040102","url":null,"abstract":"Campus recycling staff at New Mexico State University requested recommendations for locations of additional bins. The author seized the opportunity to answer this inherently geographic question by designing a senior-graduate level special topics course. Students who enrolled designed a mapping activity for freshman students which would introduce them to geographic data collection and analysis. Students mapped bins on paper campus maps and with GPS units. Researchers produced a population density surface and created a surface of linear distance to a recycling bin, and a locational-ranking surface that identified areas that would benefit from new/additional recycle bins. A total of 192 outdoor trash bins and 17 outdoor recycle bins were identified. Results identified eight locations for addition of new bins. Recommendations based on this experience include a broad approach to recycling and geographic education that emphasizes sustainability and the importance of the reduce, reuse, recycle, the 3 R's.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131568861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Integrative Nature of Geography: Bridging the Gap in the Environmental Science Curriculum 地理学的综合性质:弥合环境科学课程的差距
Int. J. Appl. Geospat. Res. Pub Date : 2019-04-01 DOI: 10.4018/IJAGR.2019040104
Christopher F. Labosier
{"title":"The Integrative Nature of Geography: Bridging the Gap in the Environmental Science Curriculum","authors":"Christopher F. Labosier","doi":"10.4018/IJAGR.2019040104","DOIUrl":"https://doi.org/10.4018/IJAGR.2019040104","url":null,"abstract":"A firm definition of geography is often elusive and at times, the field is criticized for borrowing heavily from other disciplines. However, this article argues that the real strength of geography is its integrative nature. The purpose of this article is to discuss geography's integrative nature and how this strength can be integrated into the undergraduate environmental science curriculum. Two brief examples are provided from the author's own teaching and research experiences. Concept mapping in an introductory environmental science class allows students to visualize the complexity and integrative nature of environmental issues. In the atmospheric science classroom, students are introduced not only to the physical processes of weather hazards, but to the social dimensions as well. It is imperative that future scientists, advocates, and decision makers learn to critically integrate across disciplines to solve the world's most pressing environmental issues.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127697516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Exploring Abandoned GIS Research to Augment Applied Geography Education 探索废弃GIS研究加强应用地理教育
Int. J. Appl. Geospat. Res. Pub Date : 2019-04-01 DOI: 10.4018/IJAGR.2019040101
Michael N. DeMers
{"title":"Exploring Abandoned GIS Research to Augment Applied Geography Education","authors":"Michael N. DeMers","doi":"10.4018/IJAGR.2019040101","DOIUrl":"https://doi.org/10.4018/IJAGR.2019040101","url":null,"abstract":"Applied geography has enjoyed a revival in large part due to the increased availability of geospatial software often resulting in its wholesale adoption in applied geography programs throughout academia. One unintended consequence of this adoption is that much of the conceptual content responsible for the historical development of GIS is largely not covered in the applied geography coursework. When applied geography programs focus on software application without considering its limitations, the applied geography student gets the misconception that the geographic underpinnings upon which the software is based are thoroughly understood and tested. A result of this, applied geography students often employ the tools with little or no understanding of their limitations for modeling real geographic processes. This article proposes that one aspect of an applied geography curriculum must include the study of the underlying principles upon which the software is based, and perhaps more importantly, the study of concepts that were abandoned in the early days of tool development.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126716627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Applying the Geohumanities 应用地球人文科学
Int. J. Appl. Geospat. Res. Pub Date : 2019-04-01 DOI: 10.4018/IJAGR.2019040103
Eric Magrane
{"title":"Applying the Geohumanities","authors":"Eric Magrane","doi":"10.4018/IJAGR.2019040103","DOIUrl":"https://doi.org/10.4018/IJAGR.2019040103","url":null,"abstract":"In recent years, geography has taken up a renewed engagement with humanities approaches to place, space, and environment. These approaches offer new possibilities for relevant, publicly engaged research and teaching; applying the geohumanities expands the techniques that which expands the techniques that geographers can employ to do engaged work in the face of great social and environmental challenges. This article describes two examples of applied geohumanities projects: a community course on climate change and poetry and a creative approach to a citizen science bioblitz. Building on these examples, four questions for future work in applied geohumanities are posed.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130206166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Designing Privacy-Aware Intelligent Transport Systems: A Roadmap for Identifying the Major Privacy Concepts 设计具有隐私意识的智能交通系统:确定主要隐私概念的路线图
Int. J. Appl. Geospat. Res. Pub Date : 2019-01-01 DOI: 10.4018/IJAGR.2019010104
Christos Kalloniatis, Dimitris Kavroudakis, Amalia Polidoropoulou, S. Gritzalis
{"title":"Designing Privacy-Aware Intelligent Transport Systems: A Roadmap for Identifying the Major Privacy Concepts","authors":"Christos Kalloniatis, Dimitris Kavroudakis, Amalia Polidoropoulou, S. Gritzalis","doi":"10.4018/IJAGR.2019010104","DOIUrl":"https://doi.org/10.4018/IJAGR.2019010104","url":null,"abstract":"Intelligent transport systems (ITSs) play a key role in people's daily activities. ITSs significantly improve mobility offering a variety of services to a vast number of users that increase on a daily basis, as more and new services are introduced. These services are based on advanced information and communication technologies (ICTs) and rely strongly on connectivity and computing resources. However, technical vulnerabilities of the technologies used in ITS, as well as the increase in users' awareness has brought security and privacy concerns to the forefront. This article aims at identifying a set of privacy concepts that provide the bases for designing trustworthy ITS services identifying possible threats and users' privacy concerns. A key contribution of the article is a roadmap that presents in detail how for every ITS function corresponding to privacy concepts can be realized for overcoming specific threats and users' privacy concerns in a smart city context.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117107475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Optimal Methodology for Detecting Land Cover Change in a Forestry, Lakeside Environment Using NAIP Imagery 利用NAIP图像检测森林湖滨环境中土地覆盖变化的最佳方法
Int. J. Appl. Geospat. Res. Pub Date : 2019-01-01 DOI: 10.4018/IJAGR.2019010102
Xiaomin Qiu, D. Sha, Xuelian Meng
{"title":"Optimal Methodology for Detecting Land Cover Change in a Forestry, Lakeside Environment Using NAIP Imagery","authors":"Xiaomin Qiu, D. Sha, Xuelian Meng","doi":"10.4018/IJAGR.2019010102","DOIUrl":"https://doi.org/10.4018/IJAGR.2019010102","url":null,"abstract":"Mapping land cover change is useful for various environmental and urban planning applications, e.g. land management, forest conservation, ecological assessment, transportation planning, and impervious surface control. As the optimal change detection approaches, algorithms, and parameters often depend on the phenomenon of interest and the remote sensing imagery used, the goal of this study is to find the optimal procedure for detecting urban growth in rural, forestry areas using one-meter, four-band NAIP images. Focusing on different types of impervious covers, the authors test the optimal segmentation parameters for object-based image analysis, and conclude that the random tree classifier, among the six classifiers compared, is most optimal for land use/cover change detection analysis with a satisfying overall accuracy of 87.7%. With continuous free coverage of NAIP images, the optimal change detection procedure concluded in this study is valuable for future analyses of urban growth change detection in rural, forestry environments.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121720749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Determining Appropriate Zones for Knowledge Intensive Firms Site Selection Using GIS: Case Study of Tehran Metropolitan Area 利用GIS确定知识密集型企业选址的适宜区域:以德黑兰大都市区为例
Int. J. Appl. Geospat. Res. Pub Date : 2019-01-01 DOI: 10.4018/IJAGR.2019010101
A. Mohammadi
{"title":"Determining Appropriate Zones for Knowledge Intensive Firms Site Selection Using GIS: Case Study of Tehran Metropolitan Area","authors":"A. Mohammadi","doi":"10.4018/IJAGR.2019010101","DOIUrl":"https://doi.org/10.4018/IJAGR.2019010101","url":null,"abstract":"In this study, the integration of fuzzy analytic hierarchy processes (FAHPs) and fuzzy overlays in GIS was used to determine appropriate geographic zones for the establishment of knowledge intensive firms in 22 districts of the Tehran metropolis. According to the theoretical background, a number of criteria were selected for the identification of appropriate geographic zones. The results show that among the selected criteria, proximity to existing knowledge intensity firms, and companies providing information and communication technology (ICT) services, higher education and research centers, being close to convenient transportation network and land use have more important role in the location of firms. According to the findings, among 22 regions, regions 3, 7, 6, 1, 2, 10, 4, 11, and 12 are the most desirable ones for the deployment of firms. Ultimately, regions 6, 7, 3, and 1 have received “very high” priority for the deployment of knowledge intensive firms.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132388541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Coastal Management Using UAS and High-Resolution Satellite Images for Touristic Areas 利用无人机和高分辨率卫星图像对旅游区进行海岸管理
Int. J. Appl. Geospat. Res. Pub Date : 2019-01-01 DOI: 10.4018/IJAGR.2019010103
A. Papakonstantinou, M. Doukari, Panagiotis J. Stamatis, K. Topouzelis
{"title":"Coastal Management Using UAS and High-Resolution Satellite Images for Touristic Areas","authors":"A. Papakonstantinou, M. Doukari, Panagiotis J. Stamatis, K. Topouzelis","doi":"10.4018/IJAGR.2019010103","DOIUrl":"https://doi.org/10.4018/IJAGR.2019010103","url":null,"abstract":"Coastline change and human activities in shoreline zones are two factors indicating the vulnerability and the quality of a coastal environment. In this article, coastline evolution and spatiotemporal differences on coastal touristic infrastructure are presented as two case studies. Both case studies have increasing interest among scientists monitoring sensitive coastal areas, and for stakeholders evolved in the tourist industry. The study is twofold: monitors the shoreline evolution and examines how the shoreline behavior affects the seasonal anthropogenic touristic infrastructure. Shoreline detection methodology integrates unmanned aerial systems (UAS) or high-resolution satellite images for data acquisition, and geographic object-based image analysis (GEOBIA) for the shoreline recognition and the infrastructure change detection. The methodology used produced robust results in the aspect of mapping and detecting coastline changes, coastal erosion and the human pressure due to specific activities.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129967186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Investigation of Possible Landslide Precursor Activity in a Small-Scale Laboratory Experiment 小规模室内试验中可能的滑坡前兆活动研究
Int. J. Appl. Geospat. Res. Pub Date : 2018-10-01 DOI: 10.4018/IJAGR.2018100105
Spiridon G. Krokidis, Konstantinos Marmarokopos, M. Avlonitis
{"title":"Investigation of Possible Landslide Precursor Activity in a Small-Scale Laboratory Experiment","authors":"Spiridon G. Krokidis, Konstantinos Marmarokopos, M. Avlonitis","doi":"10.4018/IJAGR.2018100105","DOIUrl":"https://doi.org/10.4018/IJAGR.2018100105","url":null,"abstract":"The aim of this article is to elucidate the identification and investigation of micro-crack evolution as a landslide precursor activity. For this purpose, the construction of a model test was considered appropriate by simulating a soil landslide in a small scale. There is a direct correlation between slope steepness and the occurrence of landslides. When inclination increases, a few seconds before failure, micro-cracks appear, initiating the slide. The whole procedure was recorded by an accelerometer, intending to record micro cracks imprint. The second step upon primary data acquisition was signal analysis in order to locate and examine micro-crack frequency range either a slide occurred and not. Finally, the signal analysis results indicated that there is a specific time period, a few seconds before failure, which, according to its frequency and energy content, can be defined as a landslide precursor activity. Comparing frequency content between precursor activity time period and no activity one greatly can identify the offset difference.","PeriodicalId":368300,"journal":{"name":"Int. J. Appl. Geospat. Res.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125092351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
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