Example of graphical outputs provided by the HYPE tool applied to a chronicle of evolution of nitrate concentration in groundwater at point 01205X0109/F6. On the left: "Characterisation" module, on the right: "Trends and Breaks" module.
HYPE was designed to directly process the national groundwater database, ADES (exports in ASCII format from producer or public sites) but it can also be applied to other data, formatted using a spreadsheet. It was developed with the R software. While R has to be installed, no programming skills are required to use it. A tool and its user manual are available (see below).
HYPE consists of 2 main modules, both of which are easy to use:
- The "Characterisation" module allows you to visualise the chronicles of evolution of one or more chemical parameters monitored at one or more sampling points. HYPE generates a summary of the main characteristics of each chronicle (mean, quantification rate, length of the chronicle, etc.) thus facilitating their comparison.
- The "Trends and breaks" module can be used to determine whether there are significant trends and/or breaks in the chronicles. HYPE generates graphs of the chronicles and the trends and breaks (change of mean and inversion of slope) identified.
HYPE was first used on a large scale in 2012 to meet the requirements of the WFD (Water Framework Directive) concerning the characterisation of the quality of groundwater bodies and to assess the risk of not meeting the WFD's environmental objectives.
- Language(s): French
- Operating system: Windows (XP, 7),
Rapports publicsPublic reports
Lopez B., Croiset N., Surdyk N., Brugeron A. (2013) - Development of tools to help assess trends in groundwater under the WFD (in French). Final Report, BRGM/RP-61855-EN, 93 p.
Lopez, B. Leynet, A., Blum, A., Baran, N. (2011). Assessment of trends in pollutant concentrations in groundwater - Review of existing statistical methods and recommendations for the implementation of the WFD (in French).Report: BRGM, BRGM/RP-59515-FR.166
Lopez, B. (2011). Evaluation of trends in pollutant concentrations in groundwater - Methodological guide (in French). Rapport BRGM, RP-59931-FR. 29p.