Methoden vergleichen
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| Elektrische-Widerstandstomographie× | InSAR× | |
|---|---|---|
| Fachgebiet | Geophysik | Geophysik |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1996 | 1989 |
| Urheber≠ | Loke and Barker | Gabriel, Goldstein, and Zebker |
| Typ≠ | Active source resistivity mapping and subsurface imaging | Radar interferometry for millimeter-precision surface deformation |
| Wegweisende Quelle≠ | Loke, M. H., & Barker, R. D. (1996). Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method. Geophysical Prospecting, 44(1), 131-152. DOI ↗ | Gabriel, A. K., Goldstein, R. M., & Zebker, H. A. (1989). Mapping small elevation changes over large areas: Differential radar interferometry. Journal of Geophysical Research, 94(B7), 9183-9191. DOI ↗ |
| Aliasnamen | ERT | InSAR |
| Verwandt | 3 | 3 |
| Zusammenfassung≠ | Electrical Resistivity Tomography (ERT) is an active-source geophysical method that maps the spatial distribution of electrical resistivity in the subsurface by injecting current between two electrodes and measuring potential differences across an array of receiver electrodes. Advanced as a practical technique by Loke and Barker in 1996, ERT has become standard for hydrogeological, environmental, and structural characterization due to its sensitivity to fluid saturation and salt content. | Interferometric Synthetic Aperture Radar (InSAR) is a radar remote sensing technique that measures millimeter-scale ground surface deformation by analyzing the phase difference between radar images acquired from slightly different orbital positions. Pioneered by Gabriel, Goldstein, and Zebker in 1989, InSAR has become essential for earthquake rupture characterization, volcanic monitoring, landslide detection, and subsidence quantification. |
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