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Geomorphology Vignettes

These illustrated essays have been contributed by participants in the Teaching Geomorphology in the 21st Century workshop in 2008. The vignettes are drafts that are being written and revised by the participants and are not finished products.


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Complexity of suspended sediment transport in an agricultural drainage system in Imperial Valley, southern California
Peng Gao, Syracuse University
Suspended sediment refers to grains moving in suspension in flows because the weights of these grains are balanced by the upward lift force caused by flow turbulence. It can originate either from channel bed and ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Arid Region Geomorphology
Vignette Type: Process

The degradation of glacial deposits in the McMurdo Dry Valleys, Antarctica
Dan Morgan, Vanderbilt University
Surface deposits such as glacial moraines and tills can yield significant information about the timing, extent, and rate of environmental change on Earth. In order to correctly interpret the record of past ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes, Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Arid Region Geomorphology, Landforms/Processes:Glacial/Periglacial
Vignette Type: Process, Computation

Slow erosion without creep in the McMurdo Dry Valleys, Antarctica
Dan Morgan, Vanderbilt University
Quantifying erosion rates is central to understanding how landscapes evolve through time and for discerning the links between landforms and the processes that shape them. The alpine valleys of the McMurdo Dry ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Landscape Evolution, Landforms/Processes, Landforms/Processes:Mass Movement, Geoscience:Geology:Geomorphology:Arid Region Geomorphology
Vignette Type: Process, Computation

Fluvial geomorphology in a tank - The scientific value of physical experiments
Nikki Strong, University of Minnesota-Twin Cities
The beauty and utility of experiments is to illuminate the fundamental processes that drive the evolution of natural systems. Experiments help us build intuition for processes that otherwise might be hard to ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Coastal-zone, Geoscience:Geology:Geomorphology:Modeling/Physical Experiments, Tectonic Geomorphology, Geoscience:Geology:Tectonics, Geomorphology:Landforms/Processes, Landscape Evolution, Dating and Rates, Climate/Paleoclimate
Vignette Type: Computation, Stratigraphy, Process, Chronology

Land disturbance and recovery following a massive deforestation event in the Missouri Ozarks
Winston Crausaz
In 1983 California businessman Raymond L. Sheeks purchased 40 square kilometers of wooded upland in the Ozark Mountains of south-central Missouri. Starting with steep forested slopes, a relief of 100 meters, thin ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Landscape Evolution, Landforms/Processes:Fluvial, Mass Movement
Vignette Type: Process

Using geomorphology to determine tectonic slip at Wallace Creek
Sarah Robinson, Arizona State University at the Tempe Campus
The Carrizo Plain along the San Andreas fault in California is world-famous for its dramatic offset features. Sag ponds, linear ridges, beheaded channels and scarps define the landscape along the fault (Vedder and ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Dating and Rates, Arid Region Geomorphology, Tectonic Geomorphology, Geoscience:Geology:Tectonics, Geomorphology:Landscape Evolution
Vignette Type: Chronology

Using technology as an aid to the geomorphologist
Sarah Robinson, Arizona State University at the Tempe Campus
Geomorphology requires characterization of the earth's surface at sufficient high resolution in 3 dimensions to explicitly represent landforms. Measuring change requires repeat survey, thus adding the 4th ...

Subject: Geomorphology: Geoscience:Geology:Tectonics, Geomorphology:Tectonic Geomorphology, Landforms/Processes, Landscape Evolution, GIS/Mapping/Field Techniques
Vignette Type: Chronology, Computation

Glacial Features of Franconia Notch, New Hampshire
R. Laurence Davis, University of New Haven
INTRODUCTION Franconia Notch, New Hampshire (Figure 1) is a classic northern Appalachian glaciated valley. It has geomorphic features from pre-glacial times, from the glaciation itself, from glacial meltwater, and ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Glacial/Periglacial, Mass Movement, Geoscience:Geology:Geomorphology:Landscape Evolution, Landforms/Processes:Fluvial, Hillslopes, Geoscience:Geology:Geomorphology:Landforms/Processes
Vignette Type: Chronology, Process

A 54-year record of sediment yield linked with proglacial sedimentary dynamics
Martin Geilhausen, Zurich University of Applied Sciences
Proglacial zones are newly formed landscapes in front of or just beyond the outer limits of glaciers (fig. 1). They are out of equilibrium with the current climate and therefore highly sensitive to climate change. ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes, Landforms/Processes:Fluvial, Glacial/Periglacial, Geoscience:Geology:Geomorphology:GIS/Mapping/Field Techniques, Dating and Rates
Vignette Type: Process, Chronology, Stratigraphy, Computation

Karst Processes and Landforms on San Salvador Island, Bahamas
R. Laurence Davis, University of New Haven
INTRODUCTION San Salvador Island is located in the Central Bahamas, about 225 km ESE of Miami and is about 12 km north to south and about 5 km east to west (Figure 1). It is notable for being Columbus' first ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Karst
Vignette Type: Process

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