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Validation and performance report
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Edité par CCSD -
The DIGISOIL project (FP7-ENV-2007-1 N°211523) is financed by the European Commission under the 7th Framework Programme for Research and Technological Development, Area “Environment”, Activity 6.3 “Environmental Technologies”.. This deliverable present a validation of the geo-physical techniques, based on different sets of criteria: i) accuracy of the measurements generally estimated by the RMSE, ii) capacity to represent spatial patterns and spatial variability. The geophysical data are interpreted in terms of different thematic maps such as: soil thickness, stone content, water content, clay content and C content. For each of these maps the performance are evaluated by measuring the gap between the estimated soil properties and those observed on the field or stored in existing soil database. Special attention is also given to the spatial patterns of errors and uncertainties inherent to the geophysical techniques. The different maps obtained on the Luxembourg or Mugello test sites are presented. First order maps are obtained by a simple inversion of geophysical signals into soil properties; second order maps are computed by several first order maps that are combined to produce more accurate information or a soil property of a high level.
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