References of "Grandry, Maud"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailA method for low-flow estimation at ungauged sites: a case study in Wallonia (Belgium)
Grandry, Maud ULg; Gailliez, Sébastien ULg; Sohier, Catherine ULg et al

in Hydrology & Earth System Sciences (2013), 2013(17), 1319-1330

Well-integrated water management can notably require estimating low flows at any point of a river. Depending on the management practice, it can be needed for various return periods. This is seldom ... [more ▼]

Well-integrated water management can notably require estimating low flows at any point of a river. Depending on the management practice, it can be needed for various return periods. This is seldom addressed in the literature. This paper shows the development of a full analysis chain including quality analysis of gauging stations, low-flow frequency analysis, and building of a global model to assess low-flow indices on the basis of catchment physical parameters. The most common distributions that fit low-flow data in Wallonia were two-parameter lognormal and gamma. The recession coefficient and percolation were the most explanatory variables, regardless of the return period. The determination coefficients of the models ranged from 0.51 to 0.67 for calibration and from 0.61 to 0.80 for validation. The regression coefficients were found to be linked to the return period. This was used to design a complete equation that gives the low-flow index based on physical parameters and the desired return period (in a 5 to 50 yr range). The interest of regionalisation and the development of regional models are also discussed. Four homogeneous regions are identified, but to date the global model remains more robust due to the limited number of 20-yr-long gauging stations. This should be reconsidered in the future when enough data will be available. [less ▲]

Detailed reference viewed: 27 (10 ULg)
Full Text
See detailUsing agro-hydrology to adapt to climate evolutions
Degré, Aurore ULg; Sohier, Catherine ULg; Bauwens, Alexandra ULg et al

in Dewals, Benjamin; Fournier, Maité (Eds.) Transboundary Water Management in a Changing Climate (2013)

Natural phenomena such as floods, drought, erosion, nitrate leaching and plant growth are influenced by climate change. The Soil - Water Systems division of Gembloux Agro-Bio Tech aims at studying these ... [more ▼]

Natural phenomena such as floods, drought, erosion, nitrate leaching and plant growth are influenced by climate change. The Soil - Water Systems division of Gembloux Agro-Bio Tech aims at studying these phenomena; better understanding processes; modelling them in order to predict their change in the future and to assess their potential consequences. Then, we can propose strategies to adapt to these changes. As an agronomy faculty, we believe that adapting agriculture can play a major role in mitigating climate evolution effects at plot and catchment scales. [less ▲]

Detailed reference viewed: 49 (18 ULg)
Full Text
See detailLow flow regionalisation in the Walloon Region
Grandry, Maud ULg; Verstraete, Arnaud; Gailliez, Sébastien et al

Report (2012)

Detailed reference viewed: 40 (7 ULg)
Full Text
See detailRégionalisation des débits d'étiage en Région wallonne
Gailliez, Sébastien ULg; Grandry, Maud ULg; Verstraete, Arnaud et al

Conference (2012, April 26)

Detailed reference viewed: 55 (19 ULg)