UnivTrevesV1, PascalFrancis, Corpus, bibRecord, 001465

Damped least-squares inversion of confined aquifer pumping data based on singular value decomposition

Identifieur interne : 001465 ( PascalFrancis/Corpus ); précédent : 001464; suivant : 001466

Damped least-squares inversion of confined aquifer pumping data based on singular value decomposition

Auteurs : ZEHRA YENIHAYAT

Source :

Mathematical geology [ 0882-8121 ] ; 1996.

RBID : Pascal:96-0201423

Descripteurs français

Pascal (Inist)
- Nappe captive, Problème inverse, Pompage, Méthode itérative, Décomposition valeur singulière, Nappe phréatique.

English descriptors

KwdEn :
- Artesian water, Ground water table, Inverse problem, Iterative method, Pumping, Singular value decomposition.

Abstract

An iterative method for calculating the transmissivity and storage coefficient from pumping test data for a confined aquifer is presented. The method optimizes the fit between the measured and the theoretical data (computed using the Theis equation) in the least-square sense. Unlike the existing schemes, this method employs the Levenberg-Marquardt method and the singular value decomposition technique resulting in a stable and rapidly convergent data inversion algorithm. The inverse procedure is initialized by an automatically created starting model derived using a novel technique that operates on the time-derivative of the drawdown curve. An important feature of the algorithm is that all the computations are done in logarithmic space which effectively linearizes the problem. The proposed method has several advantages over the conventional iterative inversion algorithms because of the linearizing parameterizations at both the forward and inverse stages of the problem. Detailed derivations of the basic equations are provided to guide the potential users as well as applications to field data to demonstrate the usefulness of the proposed algorithm.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A02	`01`			`@0 MATGED`
A03		`1`		`@0 Math. geol.`
A05				`@2 28`
A06				`@2 2`
A08	`01`	`1`	`ENG`	`@1 Damped least-squares inversion of confined aquifer pumping data based on singular value decomposition`
A09	`01`	`1`	`ENG`	`@1 Inverse theory in the earth sciences`
A11	`01`	`1`		`@1 ZEHRA YENIHAYAT`
A12	`01`	`1`		`@1 HERZFELD (Ute Christina) @9 ed.`
A14	`01`			`@1 Ankara Universitesi, Fen Fak., Jeoloji Müh. B., Besevler @2 06100 Ankara @3 TUR @Z 1 aut.`
A15	`01`			`@1 FB VI Quantitative Methoden in den Geowissenschaften, Universität Trier @2 54286 Trier @3 DEU @Z 1 aut.`
A15	`02`			`@1 Institute of Arctic and Alpine Research, University of Colorado Boulder @2 Boulder, Colorado 80309-0450 @3 USA @Z 1 aut.`
A20				`@1 203-228`
A21				`@1 1996`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 14907 @5 354000053329610040`
A44				`@0 0000`
A45				`@0 1 p.1/2`
A47	`01`	`1`		`@0 96-0201423`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Mathematical geology`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 An iterative method for calculating the transmissivity and storage coefficient from pumping test data for a confined aquifer is presented. The method optimizes the fit between the measured and the theoretical data (computed using the Theis equation) in the least-square sense. Unlike the existing schemes, this method employs the Levenberg-Marquardt method and the singular value decomposition technique resulting in a stable and rapidly convergent data inversion algorithm. The inverse procedure is initialized by an automatically created starting model derived using a novel technique that operates on the time-derivative of the drawdown curve. An important feature of the algorithm is that all the computations are done in logarithmic space which effectively linearizes the problem. The proposed method has several advantages over the conventional iterative inversion algorithms because of the linearizing parameterizations at both the forward and inverse stages of the problem. Detailed derivations of the basic equations are provided to guide the potential users as well as applications to field data to demonstrate the usefulness of the proposed algorithm.
C02	`01`	`X`		`@0 001E01N02`
C02	`02`	`2`		`@0 226A02`
C03	`01`	`X`	`FRE`	`@0 Nappe captive @5 01`
C03	`01`	`X`	`ENG`	`@0 Artesian water @5 01`
C03	`01`	`X`	`SPA`	`@0 Capa cautiva @5 01`
C03	`02`	`X`	`FRE`	`@0 Problème inverse @5 26`
C03	`02`	`X`	`ENG`	`@0 Inverse problem @5 26`
C03	`02`	`X`	`SPA`	`@0 Problema inverso @5 26`
C03	`03`	`X`	`FRE`	`@0 Pompage @5 27`
C03	`03`	`X`	`ENG`	`@0 Pumping @5 27`
C03	`03`	`X`	`SPA`	`@0 Bombeo @5 27`
C03	`04`	`X`	`FRE`	`@0 Méthode itérative @5 28`
C03	`04`	`X`	`ENG`	`@0 Iterative method @5 28`
C03	`04`	`X`	`SPA`	`@0 Método iterativo @5 28`
C03	`05`	`X`	`FRE`	`@0 Décomposition valeur singulière @5 29`
C03	`05`	`X`	`ENG`	`@0 Singular value decomposition @5 29`
C03	`05`	`X`	`SPA`	`@0 Decomposición valor singular @5 29`
C03	`06`	`X`	`FRE`	`@0 Nappe phréatique @5 30`
C03	`06`	`X`	`ENG`	`@0 Ground water table @5 30`
C03	`06`	`X`	`SPA`	`@0 Capa freática @5 30`
N21				`@1 134`

Format Inist (serveur)

NO :	PASCAL 96-0201423 INIST
ET :	Damped least-squares inversion of confined aquifer pumping data based on singular value decomposition
AU :	ZEHRA YENIHAYAT; HERZFELD (Ute Christina)
AF :	Ankara Universitesi, Fen Fak., Jeoloji Müh. B., Besevler/06100 Ankara/Turquie (1 aut.); FB VI Quantitative Methoden in den Geowissenschaften, Universität Trier/54286 Trier/Allemagne (1 aut.); Institute of Arctic and Alpine Research, University of Colorado Boulder/Boulder, Colorado 80309-0450/Etats-Unis (1 aut.)
DT :	Publication en série; Niveau analytique
SO :	Mathematical geology; ISSN 0882-8121; Coden MATGED; Etats-Unis; Da. 1996; Vol. 28; No. 2; Pp. 203-228; Bibl. 1 p.1/2
LA :	Anglais
EA :	An iterative method for calculating the transmissivity and storage coefficient from pumping test data for a confined aquifer is presented. The method optimizes the fit between the measured and the theoretical data (computed using the Theis equation) in the least-square sense. Unlike the existing schemes, this method employs the Levenberg-Marquardt method and the singular value decomposition technique resulting in a stable and rapidly convergent data inversion algorithm. The inverse procedure is initialized by an automatically created starting model derived using a novel technique that operates on the time-derivative of the drawdown curve. An important feature of the algorithm is that all the computations are done in logarithmic space which effectively linearizes the problem. The proposed method has several advantages over the conventional iterative inversion algorithms because of the linearizing parameterizations at both the forward and inverse stages of the problem. Detailed derivations of the basic equations are provided to guide the potential users as well as applications to field data to demonstrate the usefulness of the proposed algorithm.
CC :	001E01N02; 226A02
FD :	Nappe captive; Problème inverse; Pompage; Méthode itérative; Décomposition valeur singulière; Nappe phréatique
ED :	Artesian water; Inverse problem; Pumping; Iterative method; Singular value decomposition; Ground water table
SD :	Capa cautiva; Problema inverso; Bombeo; Método iterativo; Decomposición valor singular; Capa freática
LO :	INIST-14907.354000053329610040
ID :	96-0201423

Links to Exploration step

Pascal:96-0201423

Le document en format XML

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<ET>Damped least-squares inversion of confined aquifer pumping data based on singular value decomposition</ET>
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<AF>Ankara Universitesi, Fen Fak., Jeoloji Müh. B., Besevler/06100 Ankara/Turquie (1 aut.); FB VI Quantitative Methoden in den Geowissenschaften, Universität Trier/54286 Trier/Allemagne (1 aut.); Institute of Arctic and Alpine Research, University of Colorado Boulder/Boulder, Colorado 80309-0450/Etats-Unis (1 aut.)</AF>
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<EA>An iterative method for calculating the transmissivity and storage coefficient from pumping test data for a confined aquifer is presented. The method optimizes the fit between the measured and the theoretical data (computed using the Theis equation) in the least-square sense. Unlike the existing schemes, this method employs the Levenberg-Marquardt method and the singular value decomposition technique resulting in a stable and rapidly convergent data inversion algorithm. The inverse procedure is initialized by an automatically created starting model derived using a novel technique that operates on the time-derivative of the drawdown curve. An important feature of the algorithm is that all the computations are done in logarithmic space which effectively linearizes the problem. The proposed method has several advantages over the conventional iterative inversion algorithms because of the linearizing parameterizations at both the forward and inverse stages of the problem. Detailed derivations of the basic equations are provided to guide the potential users as well as applications to field data to demonstrate the usefulness of the proposed algorithm.</EA>
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Damped least-squares inversion of confined aquifer pumping data based on singular value decomposition

Damped least-squares inversion of confined aquifer pumping data based on singular value decomposition

Source :

Descripteurs français

English descriptors

Abstract

Notice en format standard (ISO 2709)

Format Inist (serveur)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri