@article{fdi:010087686,
  title = {{S}earch for a relevant scale to optimize the quality monitoring of groundwater bodies in the {O}ccitanie region ({F}rance)},
  author = {{J}abrane, {M}. and {T}ouiouine, {A}. and {V}alles, {V}. and {B}ouabdli, {A}. and {C}hakiri, {S}. and {M}ohsine, {I}. and {E}l {J}arjini, {Y}. and {M}orarech, {M}. and {D}uran, {Y}. and {B}arbi{\'e}ro, {L}aurent},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n {F}rance, and more generally in {E}urope, the high number of groundwater bodies ({GWB}) per administrative region is an obstacle for the management and monitoring of water for human consumption by regional health agencies. {M}oreover, {GWB}s show a high spatial, temporal, physico-chemical, and bacteriological variability. {T}he objective is to establish homogeneous groupings of {GWB} from the point of view of water quality and the processes responsible for this quality. {I}n the {O}ccitanie region in southwestern {F}rance, the cross-referencing of two databases, namely the {F}rench reference system for groundwater bodies and {SISE}-{EAUX}, provided a dataset of 8110 observations and 15 parameters distributed over 106 {GWB}. {T}he 8-step approach, including data conditioning, dimensional reduction by {P}rincipal {C}omponent {A}nalysis, and hierarchical clustering, resulted in 20 homogeneous groups of {GWB} over the whole region. {T}he loss of information caused by this grouping is quantified by the evolution of the explained variance. {S}plitting the region into two large basins ({A}dour-{G}aronne and {R}hone {M}editerranee) according to the recommendations of the {E}uropean community does not result in a significant additional loss of information contained in the data. {A} quick study of a few groups allows to highlight the specificities of each one, thus enabling targeted guidelines or recommendations for water quality management and monitoring. {I}n the future, the method will have to be tested on the scale of large {E}uropean watersheds, as well as in the context of an increase in the number of parameters.},
  keywords = {groundwater resource ; groundwater management ; drinking water ; large ; database ; mapping ; {O}ccitanie ; {F}rance ; {FRANCE} ; {OCCITANIE}},
  booktitle = {},
  journal = {{H}ydrology},
  volume = {10},
  numero = {4},
  pages = {89 [17 ]},
  year = {2023},
  DOI = {10.3390/hydrology10040089},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087686},
}