用TEM反演法进行MT静位移的识别和校正

杨长福; 林长佑

Volume 26 Issue 6

Jun. 2001

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Yang Changfu, Lin Changyou, 2001. JUDGMENT AND CORRECTION FOR MT STATIC SHIFT BY TEM INVERSION METHOD. Earth Science, 26(6): 609-614.

Citation:

Yang Changfu, Lin Changyou, 2001. JUDGMENT AND CORRECTION FOR MT STATIC SHIFT BY TEM INVERSION METHOD. Earth Science, 26(6): 609-614.

Yang Changfu, Lin Changyou, 2001. JUDGMENT AND CORRECTION FOR MT STATIC SHIFT BY TEM INVERSION METHOD. Earth Science, 26(6): 609-614.

Citation:

Yang Changfu, Lin Changyou, 2001. JUDGMENT AND CORRECTION FOR MT STATIC SHIFT BY TEM INVERSION METHOD. Earth Science, 26(6): 609-614.

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JUDGMENT AND CORRECTION FOR MT STATIC SHIFT BY TEM INVERSION METHOD

Yang Changfu¹,
Lin Changyou²

1.
Department ofEarth Science, Nanjing University, Nanjing 210093, China
2.
Lanzhou Institute ofSeismology, China Seismological Bureau, Lanzhou 730000, China

Received Date: 2001-01-05
Publish Date: 2001-11-25

Abstract

Abstract

The inversion for TEMdata using the observed magnetic fields instead of using the apparent resistivities avoids the errors caused by the definition of the TEMapparent resistivity. In addition, the inversed results by fitting the magnetic fields of the transmitter source's image to those of the observed magnetic fields are relatively less affected by the conductivity inhomogeneity. The MTapparent curves calculated from the geo-electric model constructed with the TEMinversion results, serve as reference curves for the more reliable correction of MTstatic shift, and also actualize the transformation from time domain to frequency domain between these two kinds of electromagnetic data. Therefore, TEMinversion can be applied to the correction of the MT static shift. Many field studies show that this method is very effective for the judgment and correction of the MTstatic shift.
- TEM,
- inversion,
- telluric electromagnetism,
- correction ofMTstatic shift

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References(19)

References

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