::: joelscheingross DOT com :::

Joel Scheingross
(dot com)

Research _____CV _____Publications _____Flickr
Waterfall Erosion Mechanics Waterfalls and knickpoints are common in mountainous stream networks and can set the pace of landscape evolution through upstream retreat and localized high erosion rates. Yet, current models cannot accurately predict waterfall erosion and retreat rates in bedrock because they lack physical, process-based mechanisms of erosion, instead relying on general predictors (e.g. stream power, slope, discharge, etc.). I am working on a series of field and flume experiments designed to develop a process based model for the retreat of waterfall plunge pool systems. This work will test the hypothesis that fluvial transport through plunge pools is the rate limiting step in waterfall erosion. Collaborators: Michael Lamb	(Waterfall plunge pool system, Penas Blancas Valley, Costa Rica)

Earth Flow Mechanics Slow moving landslides and earth flows are common features in mountanous terrain with poorly consolidated sediments. These slides are significant drivers of erosion, yet little is known about how they move and deform. Through combining remote based measurements of deformation (InSAR and optical image correlation) and field work characterizing flow geometries and properties, I hope to build a mechanistic law for earth flow movement. Collaborators: Mark Simons, Jean-Philippe Avouac, Ben Mackey	(Earth flows along the creeping portion of the San Andreas Fault, California)

Fluvial transport in headwater streams Small, steep streams are the critical link in moving sediment from hillslopes to large, trunk channels. These streams make up the majority of the river network in terms of channel length, but are often overlooked in favor of study of larger streams. I have set up a multi-year tracer pebble study in headwater streams in Northern California to exam the conditions for incipient motion of particles. Results from this study will aid in predictions of sediment transport in headwater streams. Collaborators: Eric Winchell, Bill Dietrich, Michael Lamb	(Tracer cobbles on a tributary of Elder Creek, Mendocino County, California)