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. 2015 Feb 13;120(2):212–241. doi: 10.1002/2014JF003215

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©2015. The Authors.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Example sequence for prediction of radiostratigraphy using horizontal differencing of phase. (a) Returned amplitude and (b) phase of a range-compressed but otherwise unfiltered complex radargram from a single receiver channel collected on 6 May 2011 (2011 P3 campaign; Table 1) (c) Unwrapped, horizontally differenced, and median-filtered phase of the complex radargram. Insets show zoomed-in portion of radargram as white dashed boxes. (d) Δϕ/Δx-predicted radiostratigraphy (blue lines) overlain on the SAR-focused returned amplitude for a larger segment of the same transect that includes the portion shown in Figures3a–3c. Magenta dots represent the points from which the Δϕ/Δx-predicted reflection slope is followed to then predict the radiostratigraphy.