Douvinet J. auteur aut IRD Kouadio J. auteur aut IRD Bonnet Emmanuel auteur aut IRD Gensel J. auteur aut IRD text bookSection fre text/pdf born digital access Crowdsourcing and crisis-mapping are concepts supported by the involvement of a large number of persons that enable, in a voluntary way, consolidation of information collected in situ during the course and progress of a phenomenon (such as a flood for example). The term 'volunteerism' is generally used to refer to activities that are non-obligatory (there is no contractual, familial or friendship obligation between the helper and the helped, nor coercion). Data collected is often of a geographical nature, and the tools used for collection (internet, mobile technologies), and publication of this data (websites, map platforms), enable it to be shared instantly and quickly. When floods occur, this input can help to assess the seriousness of a situation, and to guide disaster relief operations for victims. specialized FRANCE 021 122 Vinet F. ed. edt IRD 209-223 Londres (GBR) Iste Oxford Elsevier 2017 https://www.documentation.ird.fr/hor/fdi:010072241 10.1016/B978-1-78548-269-4.50015-9 978-1-78548-269-4 [F B010072241] https://www.documentation.ird.fr/hor/fdi:010072241 https://www.documentation.ird.fr/intranet/publi/depot/2018-02-27/010072241.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2018-02-27 2023-07-11 fdi:010072241 fre