Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | A Methodology for Sampling Wells Networks Optimization Based on Geostatistical Analysis of Hydrochemical Parameters |
| Abstract | Settling decision support tools for water quality management is one of the most important goals in countries where water resources are scarce and polluted. The existing networks for monitoring the hydrochemical parameters in groundwater call be extensively used in order to achieve the water quality information. Parameters estimation based on sampled data strongly inI1uences managerial choices. Monitoring networks are normally designed considering the total number of available \vells drilled in an aquifer. This procedure often increases the sampling cost but does not reduce the uncertainty related to the estimation. A methodology has been developed useful to reduce to the minimum the number of wells in an existing monitoring network, keeping the estimation uncertainty below a desired threshold. In geostatistics, spatial and temporal behavior of hydrochemieal parameters in groundwater can be studied by means of coregionalization models. If the spatial structure can be assumed persistent in time, the characteristic parameters of the auto- and cross-variograms (model type, sill and range) can be evaluated using data from previous sampling campaigus performed in different periods. The methodology strongly depends on the assumption of temporal persistence of the spatial behavior of the considered parameter. In order to take into account the natural variability of the considered phenomena the methodology has been investigated by increasing and decreasing the variogram parameters in an application to a real case, the monitoring network of the aquifer of the Lucca Plain, Central Italy. |
| Source | International Conference on Water Problems in the Mediterranean Countries, Lefkosa, 17-21 Novembre 1997 |
| Keywords | GroundwaterGroundwater qualityMonitoring network optimizationSampling procedures optimization |
| Year | 1997 |
| Type | Contributo in atti di convegno |
| Authors | D'Agostino V; Passarella G; Vurro M |
| Text | 213239 1997 Groundwater Groundwater quality Monitoring network optimization Sampling procedures optimization A Methodology for Sampling Wells Networks Optimization Based on Geostatistical Analysis of Hydrochemical Parameters D Agostino V; Passarella G; Vurro M VITO D AGOSTINO , GIUSEPPE PASSARELLA , AND MICHELE VURRO Water Research Institute CNR, V.le F.De Blasio, 5, 70123 Bari ITALY Tecnopolis CSATE, S.P. Casamassima, km3, 70010 Valenzano BA ITALY Settling decision support tools for water quality management is one of the most important goals in countries where water resources are scarce and polluted. The existing networks for monitoring the hydrochemical parameters in groundwater call be extensively used in order to achieve the water quality information. Parameters estimation based on sampled data strongly inI1uences managerial choices. Monitoring networks are normally designed considering the total number of available \vells drilled in an aquifer. This procedure often increases the sampling cost but does not reduce the uncertainty related to the estimation. A methodology has been developed useful to reduce to the minimum the number of wells in an existing monitoring network, keeping the estimation uncertainty below a desired threshold. In geostatistics, spatial and temporal behavior of hydrochemieal parameters in groundwater can be studied by means of coregionalization models. If the spatial structure can be assumed persistent in time, the characteristic parameters of the auto and cross variograms model type, sill and range can be evaluated using data from previous sampling campaigus performed in different periods. The methodology strongly depends on the assumption of temporal persistence of the spatial behavior of the considered parameter. In order to take into account the natural variability of the considered phenomena the methodology has been investigated by increasing and decreasing the variogram parameters in an application to a real case, the monitoring network of the aquifer of the Lucca Plain, Central Italy. Proceedings of International Conference on Water Problems in the Mediterranean Countries Gorcekus H 975 8359 00 2 Pubblicazione in atti di convegno con ISBN. 1 International Conference on Water Problems in the Mediterranean Countries Lefkosa 17 21 Novembre 1997 Internazionale Contributo A Methodology for Sampling Wells Networks Optimization Based on Geostatistical Analysis of Hydrochemical Parameters Pubblicazione in atti di convegno con ISBN. INT_Contributo_in_atti_Convegno_07.pdf Contributo in atti di convegno giuseppe.passarella PASSARELLA GIUSEPPE michele.vurro VURRO MICHELE TA.P04.005.008 Integrazione di metodologie per il monitoraggio e la modellizzazione per la gestione delle risorse idriche |