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Auflistung nach Autor:in "Dao, Hy"

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  • Konferenzbeitrag
    Envirocat: a Swiss Catalogue for Sharing Environmental Information
    (Sh@ring – EnviroInfo 2004, 2004) Fink, Karin; Ortner, Véronique; Dao, Hy; Richard, Jean-Philippe; Vogel, Frédéric
    This paper presents the envirocat project, the Swiss Catalogue of Environmental Data. Envirocat deals with different aspects of sharing: federal and cantonal institutions share information about environmental data with other institutions and the public in a system accessible to all. Sharing is also significant when it comes to providing the contents of the catalogue: many different partners share the workload of updating. Recently several different initiatives concerning metadata and centralized databases have been launched at different levels (national and cantonal) in Switzerland. Sharing therefore implies connecting these initiatives and coordinating the collection of metadata. Envirocat has been developed entirely with open source technology, making it possible for others to share the experience gained through envirocat and to take part in the future development of the application. This paper focuses on different aspects that are equally important for a successful envirocat catalogue: the institutional mandate, environmental data concepts, open source technologies and the data provider community.
  • Konferenzbeitrag
    Global evaluation of human risk and vulnerability to natural hazards
    (Sh@ring – EnviroInfo 2004, 2004) Dao, Hy; Peduzzi, Pascal
    This paper describes some methodological aspects of the development of the Disaster Risk Index (DRI), a central component of the Reducing Disaster Risk report from the United Nation Development Programme (UNDP/BCPR 2004). The DRI aims to improve understanding of the relationship between development and disaster risk at the global level. The major assumption behind the index is that differences of risk levels faced by countries with similar exposures to natural hazards are explained by socio-economic factors, i.e. by the population vulnerability. The DRI allows the measurement and the comparison of relative levels of risk, exposure to hazard and vulnerability on a country by country basis. The DRI is also a contribution to a more quantitative evidence for planning and decision making in the field of risk reduction and management. This paper focuses on the evaluation of risk for four hazards (cyclones, droughts, earthquakes and floods). Starting from data on exposed population, as estimated using Geographical Information System (GIS), a statistical analysis was carried out to identify the socio-economical indicators reflecting human vulnerability to hazards. To calibrate the risk model, past casualties recorded by the database EM-DAT from the Centre of Research on Epidemiology of Disasters (CRED) 3 were used. The final outputs include a set of indicators for measuring levels of risk on a country by country basis, a global database on hazard frequencies, an evaluation of the population exposed and the identification of socio-economical parameters for estimating human vulnerability to natural hazards.