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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Grain Sorting In The Morphological Active Layer Of A Braided River Physical Model., Pauline Leduc, Peter Ashmore, James T. Gardner
Grain Sorting In The Morphological Active Layer Of A Braided River Physical Model., Pauline Leduc, Peter Ashmore, James T. Gardner
Geography & Environment Publications
A physical scale model of a gravel-bed braided river was used to measure vertical grain size sorting in the morphological active layer aggregated over the width of the river. This vertical sorting is important for analyzing braided river sedimentology, for numerical modeling of braided river morphodynamics, and for measuring and predicting bedload transport rate. We define the morphological active layer as the bed material between the maximum and minimum bed elevations at a point over extended time periods sufficient for braiding processes to rework the river bed. The vertical extent of the active layer was measured using 40 hourly high-resolution …
Transformative Geomorphic Research Using Laboratory Experimentation, Sean J. Bennett, Peter Ashmore, Cheryl Mckenna Neuman
Transformative Geomorphic Research Using Laboratory Experimentation, Sean J. Bennett, Peter Ashmore, Cheryl Mckenna Neuman
Geography & Environment Publications
Laboratory experiments in geomorphology is the theme of the 46th annual Binghamton Geomorphology Symposium (BGS). While geomorphic research historically has been dominated by field-based endeavors, laboratory experimentation has emerged as an important methodological approach to study these phenomena, employed primarily to address issues related to scale and the analytical treatment of the geomorphic processes. It is contended here that geomorphic laboratory experiments have resulted in transformative research. Several examples drawn from the fluvial and aeolian research communities are offered as testament to this belief, and these select transformative endeavors often share very similar attributes. The 46th BGS will focus on …
Towards A Sociogeomorphology Of Rivers, Peter Ashmore
Towards A Sociogeomorphology Of Rivers, Peter Ashmore
Geography & Environment Publications
While human impacts on rivers and other landforms have long been a component of geomorphic research, little of this work explicitly includes insights into human agency from social science or recognises that in many cases rivers can be considered to be hybrid coproductions or „socio-natures‟. A socio-geomorphic approach proposed here has parallels with some aspects of sociohydrology and can extend and enrich existing geomorphic explanations of the morphology of, for example, urban rivers by explicitly recognising and working with the coevolution of the human and natural systems. Examples from recent literature illustrate ways in which these relationships can be understood …