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A web-based spatial decision support system for monitoring the risk of water contamination in private wells / Yu Lan in Annals of GIS, vol 26 n° 3 (July 2020)  

Public [article]  inAnnals of GIS > vol 26 n° 3 (July 2020) . - pp 293 - 309 Titre : A web-based spatial decision support system for monitoring the risk of water contamination in private wells Type de document : Article/Communication Auteurs : Yu Lan, Auteur ; Wenwu Tang, Auteur ; Samantha Dye, Auteur ; et al., Auteur Année de publication : 2020 Article en page(s) : pp 293 - 309 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes descripteurs IGN] arsenic [Termes descripteurs IGN] base de données localisées [Termes descripteurs IGN] Caroline du Nord (Etats-Unis) [Termes descripteurs IGN] contamination [Termes descripteurs IGN] eau souterraine [Termes descripteurs IGN] interpolation spatiale [Termes descripteurs IGN] krigeage [Termes descripteurs IGN] pollution des eaux [Termes descripteurs IGN] prévention des risques [Termes descripteurs IGN] puits [Termes descripteurs IGN] santé [Termes descripteurs IGN] surveillance sanitaire [Termes descripteurs IGN] système d'aide à la décision [Termes descripteurs IGN] système d'information géographique [Termes descripteurs IGN] WebSIG Résumé : (auteur) Long-term exposure to contaminated water can cause health effects, such as cancer. Accurate spatial prediction of inorganic compounds (e.g. arsenic) and pathogens in groundwater is critical for water supply management. Ideally, environmental health agencies would have access to an early warning system to alert well owners of risks of such contamination. The estimation and dissemination of these risks can be facilitated by the combination of Geographic Information Systems and spatial analysis capabilities – i.e., spatial decision support system (SDSS). However, the use of SDSS, especially web-based SDSS, is rare for spatially explicit studies of drinking water quality of private wells. In this study, we introduce the interactive Well Water Risk Estimation(iWWRE), a web-based SDSS to facilitate the monitoring of water contamination in private wells across Gaston County, North Carolina (US). Our system implements geoprocessing web services and generates dynamic spatial analysis results based on a database of private wells. Environmental health scientists using our system can conduct fine-grained spatial interpolation on 1) a particular type of contaminant such as arsenic, 2) on various subsets through a temporal query. Visuals consist of an estimation map, cross validation information, Kriging variance and contour lines that delineate areas with maximum contaminant levels (MCL), as set by the US Environmental Protection Agency (EPA). Our web-based SDSS was developed jointly with environmental health specialists who found it particularly critical for the monitoring of local contamination trends, and a useful tool to reach out to private well users in highly elevated contaminated areas. Numéro de notice : A2020-583 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/19475683.2020.1798508 date de publication en ligne : 30/07/2020 En ligne : https://doi.org/10.1080/19475683.2020.1798508 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95905 [article]

An alternative to desktop GIS? Evaluating the cartographic and analytical capabilities of WebGIS platforms for teaching / Victoria Fast in Cartographic journal (the), Vol 57 n° 2 (May 2020)  

Public [article]  inCartographic journal (the) > Vol 57 n° 2 (May 2020) . - pp 175 - 186 Titre : An alternative to desktop GIS? Evaluating the cartographic and analytical capabilities of WebGIS platforms for teaching Type de document : Article/Communication Auteurs : Victoria Fast, Auteur ; Fahim Hossain, Auteur Année de publication : 2020 Article en page(s) : pp 175 - 186 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique [Termes descripteurs IGN] analyse comparative [Termes descripteurs IGN] ArcGIS online [Termes descripteurs IGN] cartographie numérique [Termes descripteurs IGN] enseignement supérieur [Termes descripteurs IGN] évaluation [Termes descripteurs IGN] formation [Termes descripteurs IGN] géomatique web [Termes descripteurs IGN] logiciel SIG [Termes descripteurs IGN] Mapbox [Termes descripteurs IGN] qualité cartographique [Termes descripteurs IGN] utilisateur [Termes descripteurs IGN] WebSIG Résumé : (Auteur) The increasing prevalence of (open) geospatial data has amplified the demand for online tools to input, manage, and analyse data and generate cartographic outputs. WebGIS platforms are responding to this demand by delivering cost-effective, relatively easy to use compared to desktop GIS software, and increasingly sophisticated tools. The continued advancement of webGIS platforms highlights the necessary, but tricky, integration of these platforms into university curriculum. In this paper, we develop an evaluation framework for users to assess, compare, and benchmark the cartographic capabilities of four webGIS platforms–ArcGIS Online, Carto, Mapbox, and GIS Cloud–against standard GIS functionality. The webGIS platforms studied offer advanced data management and some spatial analysis capabilities, but in contrast, they have limited cartographic capabilities for creating static maps. Recognizing that platforms change, and change often, this study serves to benchmark the capabilities of webGIS platforms, while reflecting on the observed challenges to teaching neocartography tools. Numéro de notice : A2020-385 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/00087041.2019.1631514 date de publication en ligne : 25/06/2020 En ligne : https://doi.org/10.1080/00087041.2019.1631514 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95462 [article]

Bridging open source tools and geoportals for interactive spatial data analytics / Bing She in Geo-spatial Information Science, vol 22 n° 3 (August 2019)  

Public [article]  inGeo-spatial Information Science > vol 22 n° 3 (August 2019) . - pp 185 - 192 Titre : Bridging open source tools and geoportals for interactive spatial data analytics Type de document : Article/Communication Auteurs : Bing She, Auteur ; Tao Hu, Auteur ; Xinyan Zhu, Auteur ; S. Bao, Auteur Année de publication : 2019 Article en page(s) : pp 185 - 192 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes descripteurs IGN] analyse spatiale [Termes descripteurs IGN] code source libre [Termes descripteurs IGN] geoportail [Termes descripteurs IGN] Python (langage de programmation) [Termes descripteurs IGN] WebSIG Résumé : (Auteur) Geoportals have been the primary source of spatial information to researchers in diverse fields. Recent years have seen a growing trend to integrate spatial analysis and geovisual analytics inside Geoportals. Researchers could use the Geoportal to conduct basic analysis without offline processing. In practice, domain-specific analysis often requires researchers to integrate heterogeneous data sources, leverage new statistical models, or build their own customized models. These tasks are increasingly being tackled with open source tools in programming languages such as Python or R. However, it is unrealistic to incorporate the numerous open source tools in a Geoportal platform for data processing and analysis. This work provides an exploratory effort to bridge Geoportals and open source tools through Python scripting. The Geoportal demonstrated in this work is the Urban and Regional Explorer for China studies. A python package is provided to manipulate this platform in the local programming environment. The server side of the Geoportal implements a set of service endpoints that allows the package to upload, transform, and process user data and seamlessly integrate them into the existing datasets. A case study is provided that illustrated the use of this package to conduct integrated analyses of search engine data and baseline census data. This work attempts a new direction in Geoportal development, which could further promote the transformation of Geoportals into online analytical workbenches. Numéro de notice : A2019-327 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10095020.2019.1645497 date de publication en ligne : 29/07/2019 En ligne : https://doi.org/10.1080/10095020.2019.1645497 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93332 [article]

Valuable components of CyberGIS : Expert viewpoints through Q‐method interviews / Forrest J. Bowlick in Transactions in GIS, vol 22 n° 5 (October 2018)  

Public [article]  inTransactions in GIS > vol 22 n° 5 (October 2018) . - pp 1105 - 1129 Titre : Valuable components of CyberGIS : Expert viewpoints through Q‐method interviews Type de document : Article/Communication Auteurs : Forrest J. Bowlick, Auteur ; Daniel W. Goldberg, Auteur ; Sarah W. Bednarz, Auteur Année de publication : 2018 Article en page(s) : pp 1105 - 1129 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes descripteurs IGN] analyse spatiale [Termes descripteurs IGN] entretien d'enquête [Termes descripteurs IGN] résolution de problème [Termes descripteurs IGN] WebSIG Résumé : (Auteur) CyberGIS is an interdisciplinary field that merges components of cyber‐infrastructure, geographic information science, and spatial analysis. This fusion combines the technical capabilities of advanced cyber‐infrastructure with the spatial analysis capabilities of GIS. How expert GIS practitioners perceive, use, and value the various components of CyberGIS is unknown, making student preparation for CyberGIS competency difficult. To address this gap, we reviewed the CyberGIS literature to develop a set of 37 key CyberGIS concepts. Then, we used Q‐methodology to interview 20 expert GIS users to understand the components of CyberGIS they viewed as most applicable to their GIS practice. Three distinct conceptions of CyberGIS expertise emerged: the spatial analyst, the domain‐specific problem solver, and the CyberGIS‐enabled computer scientist. The CyberGIS‐enabled computer scientist emphasized the underlying technologies which allow spatial analysts to discover and implement advanced methods and processes in GIS, which are then utilized by problem solvers to address domain‐focused issues. These three contrasting perceptions of CyberGIS expertise raise questions about the nature of curriculum and instruction appropriate to develop competent CyberGIS practitioners. With the identified variety of expert practices concerning CyberGIS, confusing practices and contrasting visions of the nature of CyberGIS reveal a need for instructional organization. Numéro de notice : A2018-571 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12446 date de publication en ligne : 11/10/2018 En ligne : https://doi.org/10.1111/tgis.12446 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92291 [article]

Opening GIScience : A process-based approach / Jerry Shannon in International journal of geographical information science IJGIS, vol 32 n° 9-10 (September - October 2018)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 32 n° 9-10 (September - October 2018) . - pp 1911 - 1926 Titre : Opening GIScience : A process-based approach Type de document : Article/Communication Auteurs : Jerry Shannon, Auteur ; Kyle Walker, Auteur Année de publication : 2018 Article en page(s) : pp 1911 - 1926 Note générale : Bibliothèque Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes descripteurs IGN] données démographiques [Termes descripteurs IGN] Géorgie (Etats-Unis) [Termes descripteurs IGN] participation du public [Termes descripteurs IGN] production participative [Termes descripteurs IGN] RStudio [Termes descripteurs IGN] science citoyenne [Termes descripteurs IGN] WebSIG Résumé : (Auteur) Many scholars have demonstrated growing interest in GIScience in recent years, including use of open data portals, shared code and options for open access publication. These practices have made both research and data more transparent and accessible for a broad audience. This research may be open only in a limited sense for populations without expertise in the technology and methods undergirding these data. Based on two case studies using RStudio’s Shiny web platform, we argue that a process-based approach focusing on how analysis is opened throughout the research process provides a supplementary way to define and reflect upon public facing geographic research. Reflecting upon decisions we made at key points in each case study project, we identify four key tensions inherent to work in open GIScience: standardized vs. flexible tools, expert vs. community-led design, single vs. multiple audiences and established vs. emerging metrics. Numéro de notice : A2018-308 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2018.1464167 date de publication en ligne : 03/05/2018 En ligne : https://doi.org/10.1080/13658816.2018.1464167 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90465 [article]

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