Metrological Principles Applied to Geohydraulic Data

Abstract

Metrological concepts apply to all kind of measurements because all measurements are comparisons. Consequently the values from such comparisons are only meaningful if they are related to common standards and references. In this fundamental aspect a laboratory measurement is not different from a field measurement. In the field, however, control over the influence quantities is much more difficult. Nevertheless, a value obtained by application of a geochemical model is dependent on these values. The uncertainty related to such values will affect the reliability of a model simulation, and therefore has to be assessed.