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Dry–Wet Bedrock Interface Detection by Radio Echo Sounding Measurements | IEEE Journals & Magazine | IEEE Xplore

Dry–Wet Bedrock Interface Detection by Radio Echo Sounding Measurements


Abstract:

In this paper, a method to distinguish a wet or dry bedrock-ice interface is proposed. It is based on the analysis of radio echo sounding (RES) measurements, a widely emp...Show More

Abstract:

In this paper, a method to distinguish a wet or dry bedrock-ice interface is proposed. It is based on the analysis of radio echo sounding (RES) measurements, a widely employed method for determining bedrock topography in Antarctica. In particular, the RES system has played an important role in subglacial lake exploration and hydrogeological studies at the bedrock-ice interface. Recently, bedrock characterization has been improved through the analysis of the power of radar echoes. Signal power depends on bedrock reflectivity and its specific physical condition. In this paper, a linear model describing the loss term (internal ice absorption) is proposed. This model, together with other known quantities, contributes toward an assessment of power variation of bedrock reflectivity in order to determinate wet and dry bedrock interfaces in the Dome C region in Antarctica.
Published in: IEEE Transactions on Geoscience and Remote Sensing ( Volume: 48, Issue: 5, May 2010)
Page(s): 2343 - 2348
Date of Publication: 17 February 2010

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