Strike-angle determination from the magnetotelluric impedance tensor in the presence of noise and local distortion: rotate at your peril!
Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, a...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Jones, Alan G. [verfasserIn] Groom, Ross W. [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Publishing Ltd ; 1993 |
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| Schlagwörter: |
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| Umfang: |
Online-Ressource |
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| Reproduktion: |
2007 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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| Übergeordnetes Werk: |
In: Geophysical journal international - Oxford . Wiley-Blackwell, 1922, 113(1993), 2, Seite 0 |
| Übergeordnetes Werk: |
volume:113 ; year:1993 ; number:2 ; pages:0 |
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| DOI / URN: |
10.1111/j.1365-246X.1993.tb00905.x |
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| 520 | |a Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. | ||
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10.1111/j.1365-246X.1993.tb00905.x doi (DE-627)NLEJ239652355 DE-627 ger DE-627 rakwb Jones, Alan G. verfasserin aut Strike-angle determination from the magnetotelluric impedance tensor in the presence of noise and local distortion: rotate at your peril! Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| magnetotelluric data analysis Groom, Ross W. verfasserin aut In Geophysical journal international Oxford . Wiley-Blackwell, 1922 113(1993), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927827 (DE-600)2006420-2 1365-246X nnns volume:113 year:1993 number:2 pages:0 http://dx.doi.org/10.1111/j.1365-246X.1993.tb00905.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 113 1993 2 0 |
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10.1111/j.1365-246X.1993.tb00905.x doi (DE-627)NLEJ239652355 DE-627 ger DE-627 rakwb Jones, Alan G. verfasserin aut Strike-angle determination from the magnetotelluric impedance tensor in the presence of noise and local distortion: rotate at your peril! Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| magnetotelluric data analysis Groom, Ross W. verfasserin aut In Geophysical journal international Oxford . Wiley-Blackwell, 1922 113(1993), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927827 (DE-600)2006420-2 1365-246X nnns volume:113 year:1993 number:2 pages:0 http://dx.doi.org/10.1111/j.1365-246X.1993.tb00905.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 113 1993 2 0 |
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10.1111/j.1365-246X.1993.tb00905.x doi (DE-627)NLEJ239652355 DE-627 ger DE-627 rakwb Jones, Alan G. verfasserin aut Strike-angle determination from the magnetotelluric impedance tensor in the presence of noise and local distortion: rotate at your peril! Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| magnetotelluric data analysis Groom, Ross W. verfasserin aut In Geophysical journal international Oxford . Wiley-Blackwell, 1922 113(1993), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927827 (DE-600)2006420-2 1365-246X nnns volume:113 year:1993 number:2 pages:0 http://dx.doi.org/10.1111/j.1365-246X.1993.tb00905.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 113 1993 2 0 |
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10.1111/j.1365-246X.1993.tb00905.x doi (DE-627)NLEJ239652355 DE-627 ger DE-627 rakwb Jones, Alan G. verfasserin aut Strike-angle determination from the magnetotelluric impedance tensor in the presence of noise and local distortion: rotate at your peril! Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| magnetotelluric data analysis Groom, Ross W. verfasserin aut In Geophysical journal international Oxford . Wiley-Blackwell, 1922 113(1993), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927827 (DE-600)2006420-2 1365-246X nnns volume:113 year:1993 number:2 pages:0 http://dx.doi.org/10.1111/j.1365-246X.1993.tb00905.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 113 1993 2 0 |
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10.1111/j.1365-246X.1993.tb00905.x doi (DE-627)NLEJ239652355 DE-627 ger DE-627 rakwb Jones, Alan G. verfasserin aut Strike-angle determination from the magnetotelluric impedance tensor in the presence of noise and local distortion: rotate at your peril! Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| magnetotelluric data analysis Groom, Ross W. verfasserin aut In Geophysical journal international Oxford . Wiley-Blackwell, 1922 113(1993), 2, Seite 0 Online-Ressource (DE-627)NLEJ243927827 (DE-600)2006420-2 1365-246X nnns volume:113 year:1993 number:2 pages:0 http://dx.doi.org/10.1111/j.1365-246X.1993.tb00905.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 113 1993 2 0 |
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Strike-angle determination from the magnetotelluric impedance tensor in the presence of noise and local distortion: rotate at your peril! |
| abstract |
Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. |
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Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. |
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Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ239652355</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707092215.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">120426s1993 xx |||||o 00| ||und c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1111/j.1365-246X.1993.tb00905.x</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ239652355</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Jones, Alan G.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Strike-angle determination from the magnetotelluric impedance tensor in the presence of noise and local distortion: rotate at your peril!</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Oxford, UK</subfield><subfield code="b">Blackwell Publishing Ltd</subfield><subfield code="c">1993</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Determination of the strike of the dominant 2-D geoelectrical structure from magnetotelluric (MT) data is difficult in the presence of both noise and local distortion. This paper illustrates that often the strike angle is the least-stable parameter that can be resolved from the MT data themselves, and that the telluric distortion parameters are usually more robustly estimated. In particular, techniques which rely only on the analytical rotational properties of the MT impedance tensor can yield erroneous results in the presence of even small amounts of noise. The estimation procedure is stabilized once the telluric distortion parameters have been correctly determined and a constrained fit is sought. Also, it is emphasized that even when the true strike angle is known, statistically superior estimates of the regional impedances result when fitting a galvanic distortion model to the data rather than merely rotating the impedance tensor into the determined (or assumed) strike direction.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="d">2007</subfield><subfield code="f">Blackwell Publishing Journal Backfiles 1879-2005</subfield><subfield code="7">|2007||||||||||</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">magnetotelluric data analysis</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Groom, Ross W.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="t">Geophysical journal international</subfield><subfield code="d">Oxford . Wiley-Blackwell, 1922</subfield><subfield code="g">113(1993), 2, Seite 0</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)NLEJ243927827</subfield><subfield code="w">(DE-600)2006420-2</subfield><subfield code="x">1365-246X</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:113</subfield><subfield code="g">year:1993</subfield><subfield code="g">number:2</subfield><subfield code="g">pages:0</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1111/j.1365-246X.1993.tb00905.x</subfield><subfield code="q">text/html</subfield><subfield code="x">Verlag</subfield><subfield code="z">Deutschlandweit zugänglich</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-DJB</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">113</subfield><subfield code="j">1993</subfield><subfield code="e">2</subfield><subfield code="h">0</subfield></datafield></record></collection>
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