USING THE MOMENTS OF A THICK LAYER TO MAP CONDUCTANCE AND CONDUCTIVITY FROM AIRBORNE ELECTROMAGNETIC DATA
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dc.contributor.author | Smith R.S. | |
dc.contributor.author | Lee T.J. | |
dc.date.accessioned | 2021-04-15T02:40:30Z | |
dc.date.available | 2021-04-15T02:40:30Z | |
dc.date.issued | 2002 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=915788 | |
dc.identifier.citation | Journal of Applied Geophysics, 2002, 49, 3, 173-183 | |
dc.identifier.issn | 0926-9851 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/27859 | |
dc.description.abstract | The moments of the airborne electromagnetic impulse response have been derived for a thick horizontal layer. These moments can be written in an analytic form for the first- and second-order moments, both for the horizontal component and the vertical component. In the limiting case of a thin sheet, the horizontal component has first-, second- and third-order moments, while the vertical component has first- and second-order moments. On the other hand, the limiting case of a half space only has first-order moments for both components. The analytic expressions for the moments can be inverted analytically, so that the half space conductivity, thin-sheet conductance, and conductivity and thickness can be estimated. The images derived from the higher-order moments better identify a deeper conductor. This is consistent with the higher-order moments being more responsive to deeper material. | |
dc.subject | AIRBORNE | |
dc.subject | ELECTROMAGNETICS | |
dc.subject | MOMENTS | |
dc.subject | CONDUCTANCE | |
dc.subject | CONDUCTIVITY | |
dc.title | USING THE MOMENTS OF A THICK LAYER TO MAP CONDUCTANCE AND CONDUCTIVITY FROM AIRBORNE ELECTROMAGNETIC DATA | |
dc.type | Статья |
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