Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Assessment of the Optimal Sampling Arrangement Based on Cokriging Estimation Variance Reduction Approach |
| Abstract | Existing monitoring networks of hydrochemical parameters in groundwater can be used in order to achieve information on water quality . Parameters estimation based on sampled data strongly influences managerial choices. A methodology based on cokriging estimation variance (CEV) evaluation is presented, useful to minimize the samples in an existing monitoring network keeping the CEV below a desired threshold. The spatial behavior of the considered chemical parameter is assumed persistent in time so that the variogram parameters are evaluated using data from previous sampling campaigns. A sequential elimination procedure has been used in order to assess the optimal sampling arrangement for estimating concentrations in particular critical sites. The methodology has been applied to monitoring network of the aquifer of the Lucca Plain, Central Italy. |
| Source | XXVIIth IAHR Congress on "Water for a Changing Global Community", San Francisco, 10-15 Agosto 1997 |
| Year | 1997 |
| Type | Contributo in atti di convegno |
| Authors | D'Agostino V; Passarella G; Vurro M |
| Text | 213172 1997 ISI Web of Science WOS 000078867000040 Scopus 2 s2.0 0030714494 Assessment of the Optimal Sampling Arrangement Based on Cokriging Estimation Variance Reduction Approach D Agostino V; Passarella G; Vurro M D AGOSTINO V. , G. PASSARELLA AND M. VURRO Water Research Institute CNR, V.le F. De Blasio, 5, 70123 Bari, Italy Tecnopolis CSATA, S.P. Casamassima, km3, 70010 Valenzano BA , Italy Existing monitoring networks of hydrochemical parameters in groundwater can be used in order to achieve information on water quality . Parameters estimation based on sampled data strongly influences managerial choices. A methodology based on cokriging estimation variance CEV evaluation is presented, useful to minimize the samples in an existing monitoring network keeping the CEV below a desired threshold. The spatial behavior of the considered chemical parameter is assumed persistent in time so that the variogram parameters are evaluated using data from previous sampling campaigns. A sequential elimination procedure has been used in order to assess the optimal sampling arrangement for estimating concentrations in particular critical sites. The methodology has been applied to monitoring network of the aquifer of the Lucca Plain, Central Italy. Groundwater An Endangered Resource Holly FM Jr, Alsaffar A 0 7844 0273 6 Pubblicazione in atti di convegno con ISBN, indicizzata da ISI Web of Sciences WOS e Scopus. XXVIIth IAHR Congress on Water for a Changing Global Community San Francisco 10 15 Agosto 1997 Internazionale Contributo Assessment of the Optimal Sampling Arrangement Based on Cokriging Estimation Variance Reduction Approach Pubblicazione in atti di convegno con ISBN, indicizzata da ISI Web of Sciences WOS e Scopus. INT_Contributo_in_atti_Convegno_06.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 |