Nathalie Stéphenne presented a poster at Geospatial Week 2015. The paper entitled “SPATIAL DATA UNCERTAINTY IN A WEBGIS TOOL SUPPORTING SEDIMENTS MANAGEMENT IN WALLONIA” was co-authored by ISSeP and Administration with B. Beaumont, M. Veschkens, S. Palm, and C. Charlemagne. This presentation was published in the proceedings of the conference held 28 September-3 October 2015 in La Grande Motte, France. C. Mallet, et al. Geospatial Week 2015, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci, XL-3/W3, 625-628, 2015. doi:10.5194/isprsarchives-XL-3-W3-625-2015
www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-3-W3/625/2015/
En_ This paper describes a WebGIS prototype developed for the Walloon administration to improve the communication and the management of sediments dredging actions carried out in rivers and lakes. In Wallonia, levelling dredged sediments on banks requires an official authorization from the administration. This request refers to geospatial datasets such as the official land use map, the cadastral map or the distance to potential pollution sources. Centralising geodatabases within a web interface facilitate the management of these authorizations for the managers and the central administration. The proposed system integrates various data from disparate sources. Some issues in map scale, spatial search quality and cartographic visualisation are discussed in this paper with the solutions provided. The prototype web application is currently discussed with some potential users in order to understand in which way this tool facilitate the communication, the management and the quality of the authorisation process. The structure of the paper states the why, what, who and how of this communication tool with a special focus on errors and uncertainties.
FR_This document describes a WebGIS prototype developed for the Walloon administration to improve communication between sediment managers in rivers and lakes. In Wallonia, the reclamation of dredged sediments on riverbanks requires official reporting to the authorities. This request refers to geospatial data sets such as land use plan, cadastral map or distance to potential pollution sources. Centralizing geodata in a web interface facilitates the management of these interactions between managers and central administration. The proposed system integrates data from a variety of sources. Some questions about map scale, the spatial quality of a geodata search and the results in terms of cartographic visualization are discussed in this paper, along with proposed solutions. The web application prototype is currently being discussed with some users to understand how this tool facilitates communication, management and process quality. The structure of the document indicates why, what, who and how this tool improves communication, with particular emphasis on spatial errors and uncertainties;