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Measuring historical coastal change using GIS and the change polygon approach / M. Smith in Transactions in GIS, vol 16 n° 1 (February 2012)  

Public [article]  inTransactions in GIS > vol 16 n° 1 (February 2012) . - pp 3 - 15 Titre : Measuring historical coastal change using GIS and the change polygon approach Type de document : Article/Communication Auteurs : M. Smith, Auteur ; R. Cromley, Auteur Année de publication : 2012 Article en page(s) : pp 3 - 15 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] ArcGIS [Termes IGN] Connecticut (Etats-Unis) [Termes IGN] détection de changement [Termes IGN] érosion côtière [Termes IGN] format TIFF [Termes IGN] littoral [Termes IGN] polygone [Termes IGN] polygone de Thiessen [Termes IGN] trait de côte Résumé : (Auteur) This study compares two automated approaches, the transect-from-baseline technique and a new change polygon method, for quantifying historical coastal change over time. The study shows that the transect-from-baseline technique is complicated by choice of a proper baseline as well as generating transects that intersect with each other rather than with the nearest shoreline. The change polygon method captures the full spatial difference between the positions of the two shorelines and average coastal change is the defined as the ratio of the net area divided by the shoreline length. Although then change polygon method is sensitive to the definition and measurement of shoreline length, the results are more invariant to parameter changes than the transect-from-baseline method, suggesting that the change polygon technique may be a more robust coastal change method. Numéro de notice : A2012-095 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2011.01292.x En ligne : https://doi.org/10.1111/j.1467-9671.2011.01292.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31543 [article]

Producing an indigenous knowledge Web GIS for Arctic Alaska communities: Challenges, successes, and lessons learned / W. Eisner in Transactions in GIS, vol 16 n° 1 (February 2012)  

Public [article]  inTransactions in GIS > vol 16 n° 1 (February 2012) . - pp 17 - 37 Titre : Producing an indigenous knowledge Web GIS for Arctic Alaska communities: Challenges, successes, and lessons learned Type de document : Article/Communication Auteurs : W. Eisner, Auteur ; J. Jelacic, Auteur ; C. Cuomo, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 17 - 37 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] Alaska (Etats-Unis) [Termes IGN] Arctique [Termes IGN] SIG participatif [Termes IGN] WebSIG Résumé : (Auteur) A traditional knowledge “Iñupiaq Web GIS”, based on a five-year study and containing observations and environmental knowledge of Iñupiat communities indigenous to Arctic Alaska, was incorporated into a Web-based platform. The website, “Arctic Cultural Cartography,” was created to be an open portal through which the password-protected “Iñupiaq Web GIS” could be accessed. We discuss the process of developing the web GIS including the incorporation of user-friendly features such as links to interactive maps, video clips of interviews, discussion boards, and the integration of popular web interfaces such as Facebook. We also discuss short- and long-term goals for the further development of the GIS, its potential as a sustainable, participatory online database for sharing pertinent ecological knowledge, and challenges in achieving optimal community involvement given constraints imposed by remote locations with limited bandwidth. Numéro de notice : A2012-096 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2011.01291.x En ligne : https://doi.org/10.1111/j.1467-9671.2011.01291.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31544 [article]

An evaluation of internet versus paper-based methods for public participation geographic information Systems (PPGIS) / A. Pocewicz in Transactions in GIS, vol 16 n° 1 (February 2012)  

Public [article]  inTransactions in GIS > vol 16 n° 1 (February 2012) . - pp 39 - 53 Titre : An evaluation of internet versus paper-based methods for public participation geographic information Systems (PPGIS) Type de document : Article/Communication Auteurs : A. Pocewicz, Auteur ; G. Brown, Auteur ; Max Nielsen-Pincus, Auteur ; R. Schnitzer, Auteur Année de publication : 2012 Article en page(s) : pp 39 - 53 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] données localisées des bénévoles [Termes IGN] évaluation des données [Termes IGN] SIG participatif [Termes IGN] support électronique [Termes IGN] support papier [Termes IGN] utilisateur civil [Termes IGN] Wyoming (Etats-Unis) Résumé : (Auteur) Public participation geographic information systems (PPGIS) are an increasingly important tool for collecting spatial information about the social attributes of place. The availability of Internet-based options for implementing PPGIS presents new opportunities for increased efficiency and new modes of access. Here we used a mixed-mode approach to evaluate paper versus Internet mapping methods for the same PPGIS survey in Wyoming. We compared participant characteristics, mapping participation, and the spatial distribution of mapped attributes between participants who responded to the paper versus Internet option. The response rate for those who completed the paper version of the survey was nearly 2.5 times the response rate of the Internet version. Paper participants also mapped significantly more places than did Internet participants (43 vs. 18). Internet participants tended to be younger, more likely to have a college degree, and had lived in the region for less time than paper participants. For all but one attribute there was no difference in the spatial distribution of places mapped between Internet and paper methods. Using a paper-based PPGIS survey resulted in a higher response rate, reduced participant bias, and greater mapping participation. However, survey mode did not influence the spatial distribution of the PPGIS data. Numéro de notice : A2012-097 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2011.01287.x En ligne : https://doi.org/10.1111/j.1467-9671.2011.01287.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31545 [article]

Fuzzy analysis for modeling regional delineation and development: The case of the Sardinian mining geopark / G. Manca in Transactions in GIS, vol 16 n° 1 (February 2012)  

Public [article]  inTransactions in GIS > vol 16 n° 1 (February 2012) . - pp 55 - 79 Titre : Fuzzy analysis for modeling regional delineation and development: The case of the Sardinian mining geopark Type de document : Article/Communication Auteurs : G. Manca, Auteur ; K. Curtin, Auteur Année de publication : 2012 Article en page(s) : pp 55 - 79 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse de groupement [Termes IGN] logique floue [Termes IGN] mine [Termes IGN] Sardaigne [Termes IGN] segmentation Résumé : (Auteur) Although defining geographic regions for analysis can be a complex exercise, involving both physical and human geographic perspectives, employing both qualitative and quantitative data, and integrating a wide range of social, economic, and political factors, it is frequently a necessary exercise in the pursuit of regional development. This article presents a method for modeling and delineating regions with fuzzy analysis for the purpose of regional development. A review of the literature regarding fuzzy analysis is provided, which demonstrates that this method is both novel and necessary. An application of this method is described in the context of the Sardinian Geopark. The fuzzy clustering analysis demonstrates how combinations of factors can inform decisions regarding where and how to initiate or continue regional development efforts. Suggestions for improvements and extensions to this process are provided. Numéro de notice : A2012-098 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2011.01300.x En ligne : https://doi.org/10.1111/j.1467-9671.2011.01300.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31546 [article]