Details

Autor(en) / Beteiligte

• Lu, Allen H.
• Schmittroth, F.
• Yeh, William W‐G.

Titel

Sequential estimation of aquifer parameters

Ist Teil von

• Water resources research, 1988-05, Vol.24 (5), p.670-682

Ort / Verlag

Blackwell Publishing Ltd

Erscheinungsjahr

1988

Quelle

Wiley Online Library Journals【Remote access available】

Beschreibungen/Notizen

• A two‐dimensional “inverse” or “parameter estimation” code was developed for use in the Basalt Waste Isolation Project site characterization program. The method uses a sequential least squares algorithm that incorporates a finite element groundwater flow code. Adjoint equations and flow equations are solved to provide an efficient calculation of sensitivity coefficients. The least squares algorithms are formulated to sequentially include the output information for updating a priori parameter estimates. Several cases were studied to demonstrate the methodology developed; included were an analysis of pumping from a single well and a sequential analysis in which results obtained by pumping from one well were combined with an analysis of pumping from a second well. The approach emphasizes the sequential nature of the problem whereby the characterization of site hydrology can be systematically improved.