scholarly journals Reflections of an Online Geographic Information Systems Course Based on Open Source Software

2008 ◽  
Vol 27 (1) ◽  
pp. 118-129 ◽  
Author(s):  
Charles M. Schweik ◽  
Maria T. Fernandez ◽  
Michael P. Hamel ◽  
Prakash Kashwan ◽  
Quentin Lewis ◽  
...  
2011 ◽  
pp. 2650-2664
Author(s):  
Renato Barrera ◽  
Abraham Alcántara ◽  
Carlos Alegría ◽  
Ana L. Ávila ◽  
David Esparza

This article presents a system to enable access to those Information Systems at the National Autonomous University of Mexico (UNAM) that are related to Biodiversity and the Environment. The system in question associates existing Geographic Information Systems (GIS’s) as well as standard relational databases in a federation, allows the contents of the individual GIS (or relational databases) to be consulted in a manner transparent to the user, and permits the exports of the underlying systems’ data under the corresponding set of permissions. Our approach is based upon three principles: compliance with international standards, reliance upon Open Source Software in implementation, and usage of servers of proven reliability and robustness. [Article copies are available for purchase from InfoSci-on-Demand.com]


2017 ◽  
Author(s):  
Kevin Leempoel ◽  
Solange Duruz ◽  
Estelle Rochat ◽  
Ivo Widmer ◽  
Pablo Orozco-terWengel ◽  
...  

AbstractGeographic Information Systems (GIS) are becoming increasingly popular in the context of molecular ecology and conservation biology thanks to their display options efficiency, flexibility and management of geodata. Indeed, spatial data for wildlife and livestock species is becoming a trend with many researchers publishing genomic data that is specifically suitable for landscape studies. GIS uniquely reveal the possibility to overlay genetic information with environmental data and, as such, allow us to locate and analyze genetic boundaries of various plant and animal species or to study gene-environment associations (GEA). This means that, using GIS, we can potentially identify the genetic bases of species adaptation to particular geographic conditions or to climate change. However, many biologists are not familiar with the use of GIS and underlying concepts and thus experience difficulties in finding relevant information and instructions on how to use them. In this paper, we illustrate the power of free and open source GIS approaches and provide essential information for their successful application in molecular ecology. First, we introduce key concepts related to GIS than are too often overlooked in the literature, for example coordinate systems, GPS accuracy and scale. We then provide an overview of the most employed open-source GIS-related software, file formats and refer to major environmental databases. We also reconsider sampling strategies as high costs of Next Generation Sequencing (NGS) data currently diminish the number of samples that can be sequenced per location. Thereafter, we detail methods of data exploration and spatial statistics suited for the analysis of large genetic datasets. Finally, we provide suggestions to properly edit maps and to make them as comprehensive as possible, either manually or trough programming languages.


2010 ◽  
Vol 12 (6) ◽  
pp. 38-45 ◽  
Author(s):  
David A. Garbin ◽  
James L. Fisher

ScienceRise ◽  
2015 ◽  
Vol 6 (2(11)) ◽  
pp. 94
Author(s):  
Володимир Пилипович Ткаченко ◽  
Микола Іванович Губа ◽  
Володимир Дмитрович Овраменко ◽  
Петро Миколайович Маслов

Author(s):  
Luz Mery Gómez Contreras ◽  
Diego Randolf Pérez Rincón ◽  
Richard Ibarra Negrette

Resumen Este artículo trata sobre la implementación de los Sistemas de Información Geográfica, SIG, en Web, como una solución informática para el manejo de información espacial relacionada con problemáticas sociales. Presenta una descripción de las características principales de estos sistemas y las ventajas que surgen al trabajarlos con tecnologías Open Source. Hace un análisis sobre la incidencia de los SIG en la sociedad y sobre los aportes que potencialmente pueden lograrse en las temáticas sociales, para seguidamente, presentar una experiencia en la aplicación de estas tecnologías en el tema de desplazamiento forzado, describiendo el Sistema de Información Geográfica. Vulnerabilidad de la Mujer Desplazada SIG-VMD, el cual permite ubicar espacialmente las situaciones de vulnerabilidad que afrontan las mujeres desplazadas en Colombia y se constituye en el producto final de un proyecto de investigación emprendido por el Instituto Geográfico Agustín Codazzi, IGAC, en colaboración con la Agencia Presidencial para la Acción Social y la Cooperación Internacional-Acción Social, que buscó dar respuesta a las solicitudes planteadas por las organizaciones de mujeres. Finalmente, se incluyen unas conclusiones sobre las temáticas, las tecnologías y las experiencias abordadas en el artículo. Palabras ClaveSistemas de Información Geográfica, Problemáticas sociales, Tecnologías Open Source   Abstract This article describes the implementation of the Geographic Information Systems, GIS, through the internet, as a software solution for managing spatial data related to social problems. It presents a description of the main characteristics of these systems and the benefits of working them trough Open Source technologies. The software does an analysis on the impact of GIS on society and on the contributions that can potentially be achieved in social issues, to then present an experience in implementing these technologies on the issue of forced displacement, describing the Geographic Information Systems. Vulnerability of displaced women GIS-VMD, which allows spatializing the vulnerabilities faced by displaced women in Colombia, and it is the final product of a research project undertaken by the Instituto Geográfico Agustín Codazzi, IGAC, in collaboration with the Presidential Agency for Social Action and International Cooperation-Acción Social, who seek to respond to the requests by women's organizations. Finally, some conclusions on the issues, technologies and experiences discussed in the article are included.Keywords Geographic Information Systems, Social Problems, Open Source Technologies


2019 ◽  
Vol 27 (1) ◽  
pp. 15-30 ◽  
Author(s):  
Burak Beyhan

Abstract The proper delimitation of planning regions is a critical issue in the success of regional plans, and it constitutes a rich domain of research. In this paper, it is argued that planning regions should be based on functional regions– if the main intention is to increase the driving power of the people behind the planning process. Within this context, the aims of this paper are twofold: (1) to develop an algorithm (FRGIS) for the delimitation of planning regions on the bases of functional regions, and to implement it by using the scripting facilities available in Free and Open Source Software for Geographic Information Systems (GIS); and (2) to delimit the planning regions in Turkey by using FRGIS and the script developed for this purpose, by employing the commuting flows occurring between districts in the case country (Turkey) in 2010. The results show that FRGIS is successful in terms of the formation of spatially-balanced regions having higher levels of self-containment compared to those of existing regions. Nevertheless, it is also evident from this study that a combination of the nomothetic and ideographic methods of science is inevitable if functional regions are to be employed as planning regions.


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