The H+ observation service was created in 2002 with following missions:
The first goal of the H+ observation service is to maintain and coordinate a network of experimental sites capable of providing data - including chronicles or data on long term experiments - for the characterisation, quantification and modelling of water, element and energy transfers in underground aquifers.
The coupling between measurements, theories, and models is a fundamental goal of the H+ observation service. The observatory aims to create a long-term relation between research teams interested in the theoretical, numerical or experimental aspects of transfers in heterogeneous media.
The H+ observation service also has the task of establishing a partnership between fundamental research, training and operational partners. Training activities are organised on the exploitation of the resource and the prevention of environmental risks.