Several steps are needed to effectively use the hydrological data in scientifical analyses:

• data acquisition,
• data handling,
• data validation and control,
• data organisation,
• data diffusion to the scientifical community.

Past collaboration between the Hydrology and Land Improvement Laboratory and private institutions has allowed development of a complete software, named CODEAU-R, to handle hydrological data.

CODEAU-R is made up of two modules. Module I is meant for data import (from any text file) and for primary processing (in graphical and interactive mode). The made corrections are marked by several quality codes. Module II is meant for the analysis and treatment of hydrometeorological data in conjunction with research and /or modeling studies.

The main reference concerning this software is: Consuegra D., De Souza P., Musy A.,1994, "CODEAU: A data base package for the assessment and analysis of hydrometeorological data"; HYDROINFORMATICS 94, Proceedings edited by Verwey A. et al., Balkema editors, ISBN9054105127.

Here below are presented the main modules of the CODEAU software:

The figure below presents the main operations to edit, controle and validate the hydrological data with CODEAU-R software.