Communicating thematic data quality with web map services
Blower, Jon D. (University of Reading. Department of Metereology)
Maso, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Díaz Benito, Daniel (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Roberts, Charles J. (University of Reading. Department of Metereology)
Griffiths, Guy H. (University of Reading. Department of Metereology)
Lewis, Jane P. (University of Reading. Department of Metereology)
Yang, Xiaoyu (Zhongguo ke xue yuan)
Pons, Xavier (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Date:	2015
Abstract:	Geospatial information of many kinds, from topographic maps to scientific data, is increasingly being made available through web mapping services. These allow georeferenced map images to be served from data stores and displayed in websites and geographic information systems, where they can be integrated with other geographic information. The Open Geospatial Consortium's Web Map Service (WMS) standard has been widely adopted in diverse communities for sharing data in this way. However, current services typically provide little or no information about the quality or accuracy of the data they serve. In this paper we will describe the design and implementation of a new "quality-enabled" profile of WMS, which we call "WMS-Q". This describes how information about data quality can be transmitted to the user through WMS. Such information can exist at many levels, from entire datasets to individual measurements, and includes the many different ways in which data uncertainty can be expressed. We also describe proposed extensions to the Symbology Encoding specification, which include provision for visualizing uncertainty in raster data in a number of different ways, including contours, shading and bivariate colour maps. We shall also describe new open-source implementations of the new specifications, which include both clients and servers.
Grants:	European Commission 265178 Ministerio de Economía y Competitividad CGL2012-33927
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	GIS ; Data quality ; Uncertainty ; WMS ; OGC ; INSPIRE ; GEOSS ; SDI
Published in:	ISPRS international journal of geo-information, Vol. 4, issue 4 (Oct. 2015) , p. 1965, ISSN 2220-9964

DOI: 10.3390/ijgi4041965

17 p, 575.5 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Grupo de Investigación Métodos y Aplicaciones en Teledetección y Sistemas de Información Geográfica (GRUMETS)
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Articles > Research articles
Articles > Published articles