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Toggle navigation. Have you forgotten your login? HAL-Inria Publications, software Conference papers. Hide details. Abstract : Estimating discharges along a stream network requires specific models of random function because usual covariance model are no longer valid on such structures. Moreover, variables are generally highly non stationary because of the discontinuity at each confluence but also because of relationships with soil properties, that have to be taken into account.
At each point of the network, the river is considered to be the linear combination of these streams on which one dimensional stationary random functions are defined. In practise, the coefficients of the linear combination are determined according to the conservation equation of discharge and flux at the forks.
An application to water discharge on the Moselle Basin north-east of France is presented. The hydrographic network of this Basin is made of about important nodes and monitoring stations are available for the last 10 years. Keywords : hydrographic networks water discharge geostatistics covariance streams graph tree.
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Pour citer cet article : C. Bernard-Michel, C. Geoscience Estimating concentrations or flow rates along a stream network requires specific models. Two classes of models, recently proposed in the literature, are generalized, to the intrinsic case in particular. We present a global construction by streams', i.
In urban location, paleorelief, below the anthropogenic surface, is the most recent natural geological layer. In order to understand the reasons and modalities of human implantations site accessibility and location for example , it is capital to develop the knowledge of this surface. We have a database gathering many boreholes done in Bordeaux historical downtown. This database has been used for building a 2. This model has been built on Bordeaux town centre by using kriging under inequalities constraints provided by the litho-stratigraphic data of geotechnical boreholes. This model provides an innovative point of view about the geomorphological evolution of the town centre.
Modélisation géostatistique des débits le long des cours d'eau