Introducing wwhypda : a world-wide collaborative hydrogeological parameters database = Introduction à wwhypda : une base des données des paramètres hydrogéologiques mondiale et collaborative

Comunian, Alessandro ; Renard, Philippe

In: Hydrogeology Journal, 2009, vol. 17, no. 2, p. 481-489

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    Summary
    Since the seminal publication of Henry Darcy's work in the 1880s, a very large number of rock property values (such as hydraulic conductivity, permeability, compressibility, porosity, etc.) has been measured and published. These data are, however, dispersed and difficult to access. To overcome this problem and to facilitate site characterization (especially stochastic), a worldwide hydrogeological parameter database (wwhypda) is proposed. It is an open and collaborative catalog allowing users to store and retrieve measurements. The catalog is accessible through a web interface ( http://wwhypda.org ). Presently, it provides individual values and probability density functions of the properties as a function of lithology, scale of observation, location, and geological environment