Social and Behavioral Sciences Commons^™

Modeling Of Terminology Database In Field Of Geodesy And Geographic Information System, Zolzaya Lkhamsuren, Oyuntsetseg Dash, Alimaa Jargalsaikhan, Ochirkhuyag Lkhamjav

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

Recently in Mongolia, many techniques and methods are being applied to the surveying and mapping fields along with the development and innovation of geodetic surveying technology, more new terminology are being used in those area. Despite of the origin of the terminology that came from or which language it’s being translated, those new words need to be interpreted by concerning the exact meaning of the word and what this word is actually referring to. However, in Mongolia, there’s no legal framework including regulation and standards of terminology and professional word translation. Consequently, a single term is being used with various …

Crowd-2-Cloud – Remote Sensing Land Cover Verification With Crowd-Sourcing Data, Moataz Ahmed, Dai Huynh, Darshana Wickramasinghe, Tuong-Thuy Vu

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

Nowadays, advanced remote sensing technologies provide huge amount of Earth Observation (EO) data timely. Growing quickly in terms of size and structure, EO data require a new way of handling and processing as it is considered big data. Cloud-computing platform proved to be a reliable and scalable platform that suits various user demands in remote sensing data processing. To verify the ambiguity of information derived solely from remote sensing, ground data is vital. The only way to keep pace with big remote sensing data is to exploit the crowdsourced data, which has been recently proposed elsewhere. In this study, we …

Leightweight Urban Computation Interchange (Luci) System, Lukas Treyer, Bernhard Klein, Reinhard König, Christine Meixner

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

In this paper we introduce LUCI, a Leightweight Urban Calculation Interchange system, designed to bring the advantages of calculation and content co-ordination system to small planning and design groups by the means of an open source middle-ware.The middle-ware focuses on problems typical to urban planning and therefore features a geo-data repository as well as a job runtime administration, to coordinate simulation models and its multiple views.The described system architecture is accompanied by two exemplary use cases, that have been used to test and further develop our concepts and implementations.

Solar Energy Resource Assessment Using R.Sun In Grass Gis And Site Suitability Analysis Using Ahp For Groundmounted Solar Photovoltaic (Pv) Farm In The Central Luzon Region (Region 3), Philippines, Ben Hur Pintor, Eula Fae Sola, Justine Teves, Loureal Camille Inocencio, Ma. Rosario Concepcion Ang

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

In the study, the solar energy resource in the Central Luzon Region (Region 3), Philippines was determined using r.sun – a topography-based solar radiation model implemented in GRASS GIS – and suitable sites for the installation of ground-mounted solar photovoltaic (PV) farms were identified using the Analytic Hierarchy Process (AHP) to determine the weights of different physical, environmental, socio-economic, risk, and constraint criteria. For the resource assessment, the inputs to r.sun used in the study consisted of freely available data that include: an SRTM (90m resolution) Digital Elevation Model (DEM) and monthly average Linke turbidity coefficients available from the SoDA …

Foss4g 2015 Full Conference Proceedings (Papers), Sanghee Shin

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This Conference Proceedings is a collection of outstanding papers submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G), 14th to 19th September 2015 in Seoul, South Korea.

Volume Introduction Letter, Venkatesh Raghavan

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This Conference Proceedings is a collection of outstanding papers submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G), 14th to 19th September 2015 in Seoul, South Korea.

Educating 21st Century Geospatial Technology Industryworkers With Open Source Software, Phillip Davis

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

The global geospatial technology industry, in a study by UK-based Oxera commissioned by Google in January 2013, has been estimated at $150 USD billion to $270 USD billion per year ($110 billion euro to $199 billion euro). In a similar US-focused study, also commissioned by Google in 2013, the Boston Consulting Group (BCG) found the geospatial services industry employs approximately 500,000 people and generates around $75 (USD) billion in annual revenue ($55 billion euro). By any measure, the geospatial industry is large one, in both the US and globally. With this explosive growth, combined with the current generation of geospatial …

Urbansim2: Simulating The Connected Metropolis, Fletcher Foti, Paul Waddell

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

UrbanSim is an open source software platform for agent-based geospatial simulation, focusing on the spatial dynamics of urban development. Since its creation UrbanSim has been used in the official planning processes for at least a dozen regional governments which were used to help allocate billions of dollars in regional investments in transportation infrastructure. UrbanSim was first conceptualized in the late 1990’s and implemented using the Java programming language. The technology landscape for scientific computing changed dramatically after that, and by 2005 UrbanSim was converted to Python, making heavy use of Numpy to vectorize calculations. By 2014, it became clear that …

Evaluation Ofweb Processing Service Frameworks, M. Ebrahim Poorazizi, Andrew J.S. Hunter

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

As geoprocessing on the web has matured in recent years, an increasing number of geoprocessing services and functionality are becoming available in the form of online Web Processing Services (WPS). Consequently, the quality of such geoprocessing services is of importance to ensure that WPS instances fulfill users’ expectations. In this paper, we illustrate, and discuss initial results from a quantitative analysis of the performance of WPS servers. To do so, we used two test scenarios to measure response time, response size, throughput, and failure rate of five WPS servers including 52 Degree North, Deegree, GeoServer, Py- WPS, and Zoo. We …

Adding Phylogenies To Qgis And Lifemapper For Evolutionary Studies Of Species Diversity, Jeffery A. Cavner, Aimee M. Stewart, Charles J. Grady, James H. Beach

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

Phylogenetic data from the “Tree of Life” have explicit spatial and temporal components when paired with species distribution and ecological data for testing contributions to biological community assembly at different geographic scales of species interaction. Important questions in biology about the degree of niche suitability and whether the history of a community’s assembly for an area can affect whether the species in a community are more or less phylogenetically related can be answered using several different spatially-filtered measures of phylogenetic diversity. Phylogenetic analyses which support the description of ecological processes are usually achieved in a handful of software libraries that …

Grass Gis, Star Trek And Old Video Tape, Peter Heinz Löwe, Janna Neumann, Margret Plank, Frauke Ziedorn, Robert Lozar, James Westervelt, Roger Inman

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This paper discusses the need for the preservation of audiovisual content in the OSGeo communities beyond the established software repositories. Audiovisual content related to OSGeo projects such as training videos can be preserved by multimedia archiving and retrieval services which are currently developed by the library community. This is demonstrated by the reference case of a newly discovered version of the GRASS GIS 1987 promotional video which is being included into the AV-portal of the German National Library of Science and Technology (TIB). Access to the video will be provided upon the release of the web-based portal, allowing for extended …

Foss4g 2014 Full Conference Proceedings (Papers), Barend Köbben

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This Conference Proceedings is a collection of outstanding papers and posters submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G), 08th to 13th September 2014 in Portland, Oregon, U.S.A.

Volume Introduction Letter, Barend Köbben

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This Conference Proceedings is a collection of outstanding papers and posters submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G), 08th to 13th September 2014 in Portland, Oregon, U.S.A.

Volume Introduction Letter, Barend Köbben

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This Conference Proceedings is a collection of outstanding papers submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G), 17th to 21st September 2013 in Nottingham, U.K.

Bytecode Unification Of Geospatial Computable Models, Jan Kolar

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

Geospatial modelling revolves around the structures of data and the semantics of these structures. This is enough in simple cases, but becomes insufficient when the best structure and semantics is hard to find or the solution is too heterogeneous to fix and reuse. Field-based and objects-based geospatial models often share common GIS data structures interchangeably, but their all possible meanings are too many to define in an immutable manner. Less studied approach to geospatial modelling is using mutable structural properties and their semantic interpretation. This work shows that the functional aspect of geospatial models is just as important as the …

Open Source In Accessibility Analyses - Modeling Of Street Petrol Station Accessibility In Germany, Stefan Neumeier

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

The paper relates two closely intertwined story lines. A socioeconomic one concentrating on street petrol station accessibility in Germany’s rural areas and a geospatial one concentrating on the usability of the Open Street Map within rural studies. This is attributed to the fact that the paper builds on findings from applied research within rural studies and is intended to serve as a “practical experiences report” assessing the usability of open source GIS/- data in rural studies. Here we analysed the accessibility of street petrol stations as one core service of general interest important for the overall individual mobility of the …

A New Gis Toolbox For Integrating Massive Heterogeneous Gis Data For Land Use Change Analysis, Birgit Laggner, Natascha Orthen

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

Agricultural land use in Germany and related impacts on the environment and the use of natural resources are key research topics at the Thünen-Institute of Rural Studies. As spatial context is essential for the analysis of causal connections, GIS data regarding all necessary information was gathered during different research projects and prepared for processing in a database. In particular, the Integrated Administration and Control System, which was available for certain project purposes for several Federal Laender and years, serves as a very detailed data source for agricultural land use. We use different Open Source GIS software like PostgreSQL/ PostGIS, GRASS …

Aegis - A State-Of-The Art Component Based Spatio-Temporal Framework For Education And Research, Roberto Giachetta

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

In past years, geoinformation has gained a significant role in information technology due to the spread of GPS localization, navigation systems and the publication of geographical data via Internet. The inclusion of semantic information and temporal alteration has also become increasingly important in GIS. The overwhelming amount of spatial and spatiotemporal data resulted in increased research effort on processing algorithms and efficient data management solutions. This article presents the AEGIS framework, a currently developed spatio-temporal data management system at the Eötvös Loránd University, Faculty of Informatics (ELTE IK). This framework will serve as the future platform of GIS education and …

Gestural Interaction With Spatiotemporal Linked Open Data, Thomas Bartoschek, Gerald Pape, Christian Kray, Jim Jones, Tomi Kauppinen

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

Exploring complex spatiotemporal data can be very challenging for non-experts. Recently, gestural interaction has emerged as a promising option, which has been successfully applied to various domains, including simple map control. In this paper, we investigate whether gestures can be used to enable non-experts to explore and understand complex spatiotemporal phenomena. In this case study we made use of large amounts of Linked Open Data about the deforestation of the Brazilian Amazon Rainforest and related ecological, economical and social factors. The results of our study indicate that people of all ages can easily learn gestures and successfully use them to …

Using Free And Open Source Gis To Automatically Create Standards-Based Spatial Metadata In Academia - First Investigations, Claire Ellul, Nart Tamash, Feng Xian, John Stuiver, Patrick Rickles

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

The importance of understanding the quality of data used in any GIS operation has increased significantly as a result of the advent of Free and Open Source (FOSS) tools and Open Data, which in turn have encouraged non-specialists to make use of GIS. Metadata (data about data) traditionally provides a description of this quality information and permits data curation, but it is frequently deemed as complex to create and maintain. Additionally, it is generally stored separately from the data, leading to issues where updates to the data are not reflected in the metadata and to users not being aware that …

Osm - Gb: Using Open Source Geospatial Tools To Create Osm Web Services For Great Britain, Amir Pourabdollah

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

A use case of integrating a variety of open-source geospatial tools is presented in this paper to process and openly redeliver open data in open standards. Through a software engineering approach, we have focused on the potential usability of OpenStreetMap in authoritative and professional contexts in Great Britain. Our system comprises open source components from OSGeo projects, the Open Street Map (OSM) community and proprietary components. We present how the open data flows among those components and is delivered to the Web with open standards. Apart from the cost issues, utilizing the opensource tools has offered some distinct advantages compared …

Taarifa - Improving Public Service Provision In The Developing World Through A Crowd-Sourced Location Based Reporting Application, Mark Iliffe, Giuseppe Sollazzo, Jeremy Morley, Robert Houghton

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

Public service provision in the developing world is challenged by a lack of coherence and consistency in the amount of resources local authorities have in their endowment. Especially where non-planned urban settlements (e.g. slums) are present, the frequent and constant change of the urban environment poses big challenges to the effective delivery of services. In this paper we report on our experiences with Taarifa: a location-based application built through community development that allows community reporting and managing of local issues.

Web–Based Participatory Gis With Data Collection On The Field – A Prototype Architecture, Maria Brovelli, Marco Minghini, Giorgio Zamboni

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

The rise of Web 2.0 and the current, unprecedented diffusion of mobile devices have laid new foundations for the development of PGIS (Participatory GIS). This study evaluates the possibility of exploiting FOSS (Free and Open Source Software) tools to build up a PGIS prototype providing Web publication of user field-collected data. Besides increasing public awareness and collaboration, user-generated content should also enlarge the knowledge of specific phenomena up to the local level. A prototype architecture was designed and tested in relation to a simple, planning-related case study, i.e., the report of road pavement damages. Open Data Kit suite was used …

Gis For All: Exploring The Barriers And Opportunities For Underexploited Gis Applications, Hao Ye, Michael Brown, Jenny Harding

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

Geographical Information Systems have been existed since the early 1960s, but evidence suggests that adoption of GIS technologies still remains relatively low in many sectors. We will explore both the barriers that affect the utilisation of GIS and opportunities to overcome these barriers. As part of this exploration we performed a literature review, collected responses from quantitative questionnaire survey and interviewed a range of technical and domain experts. Having analysed and collated the results of these studies we have identified ways forward for future research and development to facilitate wider spread adoption and exploitation of GIS applications. Our discussion focuses …

Spatial Data Infrastructure Of The Plurinational State Of Bolivia - A Free And Democratic Sdi, Raul Fernando Molina Rodriguez, Sylvain Lesage

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

The Vice Presidency of the State, with the help of the GeoBolivia project, is building the Spatial Data Infrastructure of the Plurinational State of Bolivia (IDEEPB by its Spanish initials). The first phase of the project has already been completed. It consisted in implementing an infrastructure and a geoportal that nowadays gives access to the reference geographic information of Bolivia, through WMS, WFS, WCS and CSW services. The project is currently in its second phase dedicated to decentralizing the structure of IDE-EPB and promoting its use throughout the Bolivian State. The whole platform uses free software and open standards. As …

A New Zealand Case Study - Open Source, Open Standards, Open Data, Brent Alexander Wood

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

The National Institute for Water and Atmospheric Research (NIWA) is New Zealand’s leading agency providing freshwater, ocean, climate, atmosphere and fisheries related research. Open Source software is widely used internally, both infrastructurally and in desktop systems. In 2011, the New Zealand Government passed “The Declaration on Open and Transparent Government”. This requires central government agencies to make taxpayer funded information freely available to the public, and encourages regional and local government, as well as agencies such as NIWA to comply. NIWA works closely with central and regional government, utilities, NGO’s and primary industry, making information discovery and delivery using common …

Foss4g 2013 Full Conference Proceedings (Papers), Barend Köbben

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This Conference Proceedings is a collection of outstanding papers submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G), 17th to 21st September 2013 in Nottingham, U.K.

Foss4g 2016 Proceedings: Academic Program - Selected Papers And Posters, Franz-Josef Behr

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This Conference Proceedings is a collection of selected papers and posters submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G 2016), 24th to 26th August 2016 in Bonn, Germany.

Like in previous FOSS4G conferences on national and international level the academic papers and posters cover an extensive wide range of topics reflecting the contribution of the academia to this field by the development of open source software components, in the design of open standards, in the proliferation of web-based solutions, in the dissemination of the open principles important in science and …

Volume Introduction Letter, Franz-Josef Behr

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

This Conference Proceedings is a collection of selected papers and posters submitted to the Academic Program of the International Conference for Free and Open Source Software for Geospatial (FOSS4G 2016), 24th to 26th August 2016 in Bonn, Germany. Again geospatial open source software was the focus of a well-attended international conference flanked by presentations on open standards and the open data movement, a meeting place for open communities.

Grass In The Desert? Developing Foss Tools For Monitoring Desertification, Anna Zanchetta

Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings

The use of Change Vector Analysis (CVA) combined with the Tasselled Cap tranform (TCT) is a powerful remote sensing tool to monitor forests and vegetated areas, but its application to arid and semiarid environment is not straightforward.

This question is tackled through the calculation of a new set of TCT coefficients using R and GRASS-GIS for SPOT and Landsat satellites, then applied and tested in change detection analysis on a short (seasonal) and a long (decades) temporal scale.

Results show that the combined procedure is an effective method to detect changes in desert environment. Furthermore, the new TCT allows the …