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Quantitative and experimental modelling of sapping networksDevelopment of drainage networks by erosion by emergent groundwater (sapping) is being modelled by a combination of laboratory experiments and theoretical modelling. Miniature drainage networks formed in fine-grained sediments share many morphologic characteristics of Martian and terrestrial networks suspected to be formed by sapping processes. A larger and better instrumented sapping box was constructed to further explore the processes of sapping and the morphology of resulting networks. The experiments to be conducted in the sapping box will investigate the roles of several factors in controlling network morphology. The mechanics of sapping of fine-grained sediments were investigated in experiments in a two-dimensional sapping chamber and through development of a theoretical model. Results of extensive tests on sapping erosion of fine-grained, cohesionless sediment were analyzed with a theoretical model of the mechanics of sapping erosion and transport.
Document ID
19840015432
Acquisition Source
Legacy CDMS
Document Type
Other - Other
Authors
Howard, A. D.
(Virginia Univ. Charlottesville, VA, United States)
Kochel, C.
(Virginia Univ. Charlottesville, VA, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1984
Publication Information
Publication: NASA. Washington Rept. of Planetary Geol. Programs
Subject Category
Geophysics
Accession Number
84N23500
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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