Brief communication: Mountain permafrost acts as an aquitard during an infiltration experiment monitored with electrical resistivity tomography time-lapse measurements
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Published:2023-04-12
Issue:4
Volume:17
Page:1601-1607
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ISSN:1994-0424
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Container-title:The Cryosphere
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language:en
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Short-container-title:The Cryosphere
Author:
Pavoni MirkoORCID, Boaga JacopoORCID, Carrera AlbertoORCID, Zuecco GiuliaORCID, Carturan Luca, Zumiani Matteo
Abstract
Abstract. Frozen layers within the subsurface of rock glaciers are
generally assumed to act as aquicludes or aquitards. So far, this behavior
has been mainly defined by analyzing the geochemical characteristics of spring
waters. In this work, for the first time, we experimentally confirmed this
assumption by executing an infiltration test in a rock glacier of the
Southern Alps, Italy. Time-lapse electrical resistivity tomography (ERT) technique
monitored the infiltration of 800 L of saltwater released on the
surface of the rock glacier; 24 h ERT monitoring highlighted that the
injected water was not able to infiltrate into the underlying frozen layer.
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Water Science and Technology
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