A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data

Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Be...
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Autor*in:	Santos, A.B. [verfasserIn] Sampaio, E.E.S. Porsani, M.J.

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2005

Schlagwörter:	inversion complex resistivity magnetotelluric

Anmerkung:	© StudiaGeo s.r.o. 2005

Übergeordnetes Werk:	Enthalten in: Studia geophysica et geodaetica - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1957, 49(2005), 1 vom: 01. Jan., Seite 109-125
Übergeordnetes Werk:	volume:49 ; year:2005 ; number:1 ; day:01 ; month:01 ; pages:109-125

Links:	Volltext

DOI / URN:	10.1007/s11200-005-1628-2

Katalog-ID:	SPR051391597

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allfields	10.1007/s11200-005-1628-2 doi (DE-627)SPR051391597 (SPR)s11200-005-1628-2-e DE-627 ger DE-627 rakwb eng Santos, A.B. verfasserin aut A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data 2005 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © StudiaGeo s.r.o. 2005 Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Because its interpretation requires an efficient inverse modelling, we propose and evaluate an inversion procedure, which consists of two steps. Both steps employ jointly the modulus and the phase of the apparent resistivity function. The first one consists of the use of the asymptotic Bostick-Niblett approach. The second employs the result of the inversion obtained in the first step as a starting model to initialize the linearized inversion performed using a multiple re-weighted least-squares approach. We applied the analysis both to synthetic data and to field data from the Parana Basin in Brazil. The results show that the inversion procedure presents a faster convergence without loss of accuracy, increases the resolving power of the MT technique, and may improve its capability to delineate conductors up to a depth of one hundred kilometers. Therefore a reasonable interpretation of the data employing one-dimensional model can be achieved even in the presence of relatively noisy data, and under conditions that slightly violate the premise of lateral homogeneity. inversion (dpeaa)DE-He213 complex resistivity (dpeaa)DE-He213 magnetotelluric (dpeaa)DE-He213 Sampaio, E.E.S. aut Porsani, M.J. aut Enthalten in Studia geophysica et geodaetica Dordrecht [u.a.] : Springer Science + Business Media B.V, 1957 49(2005), 1 vom: 01. Jan., Seite 109-125 (DE-627)332167518 (DE-600)2053073-0 1573-1626 nnns volume:49 year:2005 number:1 day:01 month:01 pages:109-125 https://dx.doi.org/10.1007/s11200-005-1628-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 49 2005 1 01 01 109-125
spelling	10.1007/s11200-005-1628-2 doi (DE-627)SPR051391597 (SPR)s11200-005-1628-2-e DE-627 ger DE-627 rakwb eng Santos, A.B. verfasserin aut A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data 2005 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © StudiaGeo s.r.o. 2005 Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Because its interpretation requires an efficient inverse modelling, we propose and evaluate an inversion procedure, which consists of two steps. Both steps employ jointly the modulus and the phase of the apparent resistivity function. The first one consists of the use of the asymptotic Bostick-Niblett approach. The second employs the result of the inversion obtained in the first step as a starting model to initialize the linearized inversion performed using a multiple re-weighted least-squares approach. We applied the analysis both to synthetic data and to field data from the Parana Basin in Brazil. The results show that the inversion procedure presents a faster convergence without loss of accuracy, increases the resolving power of the MT technique, and may improve its capability to delineate conductors up to a depth of one hundred kilometers. Therefore a reasonable interpretation of the data employing one-dimensional model can be achieved even in the presence of relatively noisy data, and under conditions that slightly violate the premise of lateral homogeneity. inversion (dpeaa)DE-He213 complex resistivity (dpeaa)DE-He213 magnetotelluric (dpeaa)DE-He213 Sampaio, E.E.S. aut Porsani, M.J. aut Enthalten in Studia geophysica et geodaetica Dordrecht [u.a.] : Springer Science + Business Media B.V, 1957 49(2005), 1 vom: 01. Jan., Seite 109-125 (DE-627)332167518 (DE-600)2053073-0 1573-1626 nnns volume:49 year:2005 number:1 day:01 month:01 pages:109-125 https://dx.doi.org/10.1007/s11200-005-1628-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 49 2005 1 01 01 109-125
allfields_unstemmed	10.1007/s11200-005-1628-2 doi (DE-627)SPR051391597 (SPR)s11200-005-1628-2-e DE-627 ger DE-627 rakwb eng Santos, A.B. verfasserin aut A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data 2005 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © StudiaGeo s.r.o. 2005 Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Because its interpretation requires an efficient inverse modelling, we propose and evaluate an inversion procedure, which consists of two steps. Both steps employ jointly the modulus and the phase of the apparent resistivity function. The first one consists of the use of the asymptotic Bostick-Niblett approach. The second employs the result of the inversion obtained in the first step as a starting model to initialize the linearized inversion performed using a multiple re-weighted least-squares approach. We applied the analysis both to synthetic data and to field data from the Parana Basin in Brazil. The results show that the inversion procedure presents a faster convergence without loss of accuracy, increases the resolving power of the MT technique, and may improve its capability to delineate conductors up to a depth of one hundred kilometers. Therefore a reasonable interpretation of the data employing one-dimensional model can be achieved even in the presence of relatively noisy data, and under conditions that slightly violate the premise of lateral homogeneity. inversion (dpeaa)DE-He213 complex resistivity (dpeaa)DE-He213 magnetotelluric (dpeaa)DE-He213 Sampaio, E.E.S. aut Porsani, M.J. aut Enthalten in Studia geophysica et geodaetica Dordrecht [u.a.] : Springer Science + Business Media B.V, 1957 49(2005), 1 vom: 01. Jan., Seite 109-125 (DE-627)332167518 (DE-600)2053073-0 1573-1626 nnns volume:49 year:2005 number:1 day:01 month:01 pages:109-125 https://dx.doi.org/10.1007/s11200-005-1628-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 49 2005 1 01 01 109-125
allfieldsGer	10.1007/s11200-005-1628-2 doi (DE-627)SPR051391597 (SPR)s11200-005-1628-2-e DE-627 ger DE-627 rakwb eng Santos, A.B. verfasserin aut A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data 2005 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © StudiaGeo s.r.o. 2005 Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Because its interpretation requires an efficient inverse modelling, we propose and evaluate an inversion procedure, which consists of two steps. Both steps employ jointly the modulus and the phase of the apparent resistivity function. The first one consists of the use of the asymptotic Bostick-Niblett approach. The second employs the result of the inversion obtained in the first step as a starting model to initialize the linearized inversion performed using a multiple re-weighted least-squares approach. We applied the analysis both to synthetic data and to field data from the Parana Basin in Brazil. The results show that the inversion procedure presents a faster convergence without loss of accuracy, increases the resolving power of the MT technique, and may improve its capability to delineate conductors up to a depth of one hundred kilometers. Therefore a reasonable interpretation of the data employing one-dimensional model can be achieved even in the presence of relatively noisy data, and under conditions that slightly violate the premise of lateral homogeneity. inversion (dpeaa)DE-He213 complex resistivity (dpeaa)DE-He213 magnetotelluric (dpeaa)DE-He213 Sampaio, E.E.S. aut Porsani, M.J. aut Enthalten in Studia geophysica et geodaetica Dordrecht [u.a.] : Springer Science + Business Media B.V, 1957 49(2005), 1 vom: 01. Jan., Seite 109-125 (DE-627)332167518 (DE-600)2053073-0 1573-1626 nnns volume:49 year:2005 number:1 day:01 month:01 pages:109-125 https://dx.doi.org/10.1007/s11200-005-1628-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 49 2005 1 01 01 109-125
allfieldsSound	10.1007/s11200-005-1628-2 doi (DE-627)SPR051391597 (SPR)s11200-005-1628-2-e DE-627 ger DE-627 rakwb eng Santos, A.B. verfasserin aut A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data 2005 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © StudiaGeo s.r.o. 2005 Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Because its interpretation requires an efficient inverse modelling, we propose and evaluate an inversion procedure, which consists of two steps. Both steps employ jointly the modulus and the phase of the apparent resistivity function. The first one consists of the use of the asymptotic Bostick-Niblett approach. The second employs the result of the inversion obtained in the first step as a starting model to initialize the linearized inversion performed using a multiple re-weighted least-squares approach. We applied the analysis both to synthetic data and to field data from the Parana Basin in Brazil. The results show that the inversion procedure presents a faster convergence without loss of accuracy, increases the resolving power of the MT technique, and may improve its capability to delineate conductors up to a depth of one hundred kilometers. Therefore a reasonable interpretation of the data employing one-dimensional model can be achieved even in the presence of relatively noisy data, and under conditions that slightly violate the premise of lateral homogeneity. inversion (dpeaa)DE-He213 complex resistivity (dpeaa)DE-He213 magnetotelluric (dpeaa)DE-He213 Sampaio, E.E.S. aut Porsani, M.J. aut Enthalten in Studia geophysica et geodaetica Dordrecht [u.a.] : Springer Science + Business Media B.V, 1957 49(2005), 1 vom: 01. Jan., Seite 109-125 (DE-627)332167518 (DE-600)2053073-0 1573-1626 nnns volume:49 year:2005 number:1 day:01 month:01 pages:109-125 https://dx.doi.org/10.1007/s11200-005-1628-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 49 2005 1 01 01 109-125
language	English
source	Enthalten in Studia geophysica et geodaetica 49(2005), 1 vom: 01. Jan., Seite 109-125 volume:49 year:2005 number:1 day:01 month:01 pages:109-125
sourceStr	Enthalten in Studia geophysica et geodaetica 49(2005), 1 vom: 01. Jan., Seite 109-125 volume:49 year:2005 number:1 day:01 month:01 pages:109-125
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	inversion complex resistivity magnetotelluric
isfreeaccess_bool	false
container_title	Studia geophysica et geodaetica
authorswithroles_txt_mv	Santos, A.B. @@aut@@ Sampaio, E.E.S. @@aut@@ Porsani, M.J. @@aut@@
publishDateDaySort_date	2005-01-01T00:00:00Z
hierarchy_top_id	332167518
id	SPR051391597
language_de	englisch
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author	Santos, A.B.
spellingShingle	Santos, A.B. misc inversion misc complex resistivity misc magnetotelluric A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data
authorStr	Santos, A.B.
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topic_title	A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data inversion (dpeaa)DE-He213 complex resistivity (dpeaa)DE-He213 magnetotelluric (dpeaa)DE-He213
topic	misc inversion misc complex resistivity misc magnetotelluric
topic_unstemmed	misc inversion misc complex resistivity misc magnetotelluric
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title	A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data
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title_full	A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data
author_sort	Santos, A.B.
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author_browse	Santos, A.B. Sampaio, E.E.S. Porsani, M.J.
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author-letter	Santos, A.B.
doi_str_mv	10.1007/s11200-005-1628-2
title_sort	robust two-step inversion of complex magnetotelluric apparent resistivity data
title_auth	A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data
abstract	Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Because its interpretation requires an efficient inverse modelling, we propose and evaluate an inversion procedure, which consists of two steps. Both steps employ jointly the modulus and the phase of the apparent resistivity function. The first one consists of the use of the asymptotic Bostick-Niblett approach. The second employs the result of the inversion obtained in the first step as a starting model to initialize the linearized inversion performed using a multiple re-weighted least-squares approach. We applied the analysis both to synthetic data and to field data from the Parana Basin in Brazil. The results show that the inversion procedure presents a faster convergence without loss of accuracy, increases the resolving power of the MT technique, and may improve its capability to delineate conductors up to a depth of one hundred kilometers. Therefore a reasonable interpretation of the data employing one-dimensional model can be achieved even in the presence of relatively noisy data, and under conditions that slightly violate the premise of lateral homogeneity. © StudiaGeo s.r.o. 2005
abstractGer	Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Because its interpretation requires an efficient inverse modelling, we propose and evaluate an inversion procedure, which consists of two steps. Both steps employ jointly the modulus and the phase of the apparent resistivity function. The first one consists of the use of the asymptotic Bostick-Niblett approach. The second employs the result of the inversion obtained in the first step as a starting model to initialize the linearized inversion performed using a multiple re-weighted least-squares approach. We applied the analysis both to synthetic data and to field data from the Parana Basin in Brazil. The results show that the inversion procedure presents a faster convergence without loss of accuracy, increases the resolving power of the MT technique, and may improve its capability to delineate conductors up to a depth of one hundred kilometers. Therefore a reasonable interpretation of the data employing one-dimensional model can be achieved even in the presence of relatively noisy data, and under conditions that slightly violate the premise of lateral homogeneity. © StudiaGeo s.r.o. 2005
abstract_unstemmed	Abstract Though two-dimensional inversion is now a standard procedure, interpretation of magnetotelluric (MT) data under the assumption of isotropic and one-dimensional structures is a valuable procedure for a first step interpretation of exploratory and solid earth geophysics investigation data. Because its interpretation requires an efficient inverse modelling, we propose and evaluate an inversion procedure, which consists of two steps. Both steps employ jointly the modulus and the phase of the apparent resistivity function. The first one consists of the use of the asymptotic Bostick-Niblett approach. The second employs the result of the inversion obtained in the first step as a starting model to initialize the linearized inversion performed using a multiple re-weighted least-squares approach. We applied the analysis both to synthetic data and to field data from the Parana Basin in Brazil. The results show that the inversion procedure presents a faster convergence without loss of accuracy, increases the resolving power of the MT technique, and may improve its capability to delineate conductors up to a depth of one hundred kilometers. Therefore a reasonable interpretation of the data employing one-dimensional model can be achieved even in the presence of relatively noisy data, and under conditions that slightly violate the premise of lateral homogeneity. © StudiaGeo s.r.o. 2005
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title_short	A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data
url	https://dx.doi.org/10.1007/s11200-005-1628-2
remote_bool	true
author2	Sampaio, E.E.S. Porsani, M.J.
author2Str	Sampaio, E.E.S. Porsani, M.J.
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doi_str	10.1007/s11200-005-1628-2
up_date	2024-07-03T21:32:09.219Z
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