Search Results - "Tucker, G.E."

Modelling landscape evolution by Tucker, Gregory E., Hancock, Gregory R.

“…Geomorphology is currently in a period of resurgence as we seek to explain the diversity, origins and dynamics of terrain on the Earth and other planets in an…”
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Rock damage and regolith transport by frost: an example of climate modulation of the geomorphology of the critical zone by Anderson, Robert S., Anderson, Suzanne P., Tucker, Gregory E.

“…ABSTRACT In this article we craft process‐specific algorithms that capture climate control of hillslope evolution in order to elucidate the legacy of past…”
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Measuring gravel transport and dispersion in a mountain river using passive radio tracers by Nathan Bradley, D., Tucker, Gregory E.

“…ABSTRACT Random walk models of fluvial sediment transport recognize that grains move intermittently, with short duration steps separated by rests that are…”
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Drainage basin sensitivity to tectonic and climatic forcing: implications of a stochastic model for the role of entrainment and erosion thresholds by Tucker, Gregory E.

“…Long‐term average rates of channel erosion and sediment transport depend on the frequency–magnitude characteristics of flood flows that exceed an erosion…”
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The evolution of a colluvial hollow to a fluvial channel with periodic steps following two transformational disturbances: A wildfire and a historic flood by Rengers, F.K., McGuire, L.A., Ebel, B.A., Tucker, G.E.

“…The transition of a colluvial hollow to a fluvial channel with discrete steps was observed after two landscape-scale disturbances. The first disturbance, a…”
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Enabling Collaborative Numerical Modeling in Earth Sciences using Knowledge Infrastructure by Bandaragoda, C., Castronova, A., Istanbulluoglu, E., Strauch, R., Nudurupati, S.S., Phuong, J., Adams, J.M., Gasparini, N.M., Barnhart, K., Hutton, E.W.H., Hobley, D.E.J., Lyons, N.J., Tucker, G.E., Tarboton, D.G., Idaszak, R., Wang, S.

“…Knowledge infrastructure is an intellectual framework for creating, sharing, and distributing knowledge. In this paper, we use knowledge infrastructure to…”
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Multi-scale characterization of topographic anisotropy by Roy, S.G., Koons, P.O., Osti, B., Upton, P., Tucker, G.E.

“…We present the every-direction variogram analysis (EVA) method for quantifying orientation and scale dependence of topographic anisotropy to aid in…”
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Statistical treatment of fluvial dose distributions from southern Colorado arroyo deposits by Arnold, L.J., Bailey, R.M., Tucker, G.E.

“…Many of the small-scale arroyo systems found across southern Colorado contain well-preserved sedimentary records of prehistoric fluvial erosion and aggradation…”
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Drainage basin responses to climate change by Tucker, G.E. (Massachusetts Institute of Technology, Cambridge.)

“…Recent investigations have shown that the extent of the channel network in some drainage basins is controlled by a threshold for overland flow erosion. The…”
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Network-scale dynamics of grain-size sorting: implications for downstream fining, stream-profile concavity, and drainage basin morphology by Gasparini, Nicole M., Tucker, Gregory E., Bras, Rafael L.

“…We explore the link between channel‐bed texture and river basin concavity in equilibrium catchments using a numerical landscape evolution model. Theory from…”
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The use of GIS-based digital morphometric techniques in the study of cockpit karst by Lyew-Ayee, P., Viles, H. A., Tucker, G. E.

“…Cockpit karst landscapes are among the most distinctive landscapes in the world, and have been the focus of long‐standing scientific interest. Early…”
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A quantitative evaluation of Playfair's law and its use in testing long-term stream erosion models by Niemann, Jeffrey D., Gasparini, Nicole M., Tucker, Gregory E., Bras, Rafael L.

“…Playfair's law (J. Playfair, illustrations of the Huttonian Theory of the Earth, 1802) requires any two tributaries in a river network to lower at the same…”
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Channel network morphology and sediment dynamics under alternating periglacial and temperate regimes: a numerical simulation study by Bogaart, P.W, Tucker, G.E, Vries, J.J., de

“…The occurrence of permafrost in a highly permeable catchment has a profound effect on runoff generation. The presence of permafrost effectively makes the…”
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A cockpit karst evolution model by Fleurant, Cyril, Tucker, G.E., Viles, H.A.

“…A cockpit karst evolution model…”
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Interactions between onshore bedrock-channel incision and nearshore wave-base erosion forced by eustasy and tectonics by Snyder, N.P., Whipple, K.X., Tucker, G.E., Merritts, D.J.

“…We explore the response of bedrock streams to eustatic and tectonically induced fluctuations in base level. A numerical model coupling onshore fluvial erosion…”
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Candidate requirements for multilateration and ADS-B systems to serve as alternatives to secondary radar by Martone, P.J., Tucker, G.E.

“…The US Department of Transportation (DOT) Volpe Center is currently involved in a National Aeronautics and Space Administration (NASA) project to configure,…”
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