Photo Based Volunteered Geographic Information Initiatives: A Comparative Study of their Suitability for Helping Quality Control of Corine Land Cover

Jacinto Estima and Marco Painho
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Jacinto Estima: ISEGI, Universidade Nova de Lisboa, Lisboa, Portugal
Marco Painho: ISEGI, Universidade Nova de Lisboa, Lisboa, Portugal

International Journal of Agricultural and Environmental Information Systems (IJAEIS), 2014, vol. 5, issue 3, 73-89

Abstract: Volunteered Geographic Information has become exponentially available over the Web in the last years. This availability can hide a vast geographical richness and provides us with both a great opportunity to explore new ways to use it and also big challenges related with its unstructured nature. This paper conducts a preliminary analysis of the adequacy of photos from the Flickr and Panoramio initiatives in order to use them as a source of field data in the quality control of the Land Use/Cover databases production. It evaluates its temporal and spatial distributions over Continental Portugal and also its distribution over Land Use/Cover classes using as a reference the European Corine Land Cover database. It concludes that this source is very valuable but needs to be combined with other sources due to its uneven spatial distribution.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:igg:jaeis0:v:5:y:2014:i:3:p:73-89

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