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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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Subject: Geomorphology

showing only Geoscience > Geology > Geomorphology > Modeling/Physical Experiments Show all Subject: Geomorphology

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Predicting the effect of changing climate on landscapes with computer based landscape evolution models
arnaud temme
Predicting the effect of changing climate on landscapes with computer based landscape evolution models. Future climate change will influence the processes that shape our landscapes. Knowing this influence is ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Modeling/Physical Experiments, Climate/Paleoclimate, Landscape Evolution
Vignette Type: Computation

Soil-water-rock interactions I: The pediment problem
Mark Strudley
You may have not initially appreciated that piedmonts (landscapes between steep mountain masses and depositional basins) are not all covered by alluvial fans. In fact, piedmonts, along with adjoining low-relief ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landscape Evolution, Modeling/Physical Experiments, Weathering/Soils, Landforms/Processes:Fluvial, Hillslopes, Geoscience:Geology:Geomorphology:Landforms/Processes, Arid Region Geomorphology
Vignette Type: Process, Computation

Soil-water-rock interactions II: The formation of tors in arid and semiarid environments
Mark Strudley
The prominence of bedrock edifices above essentially featureless, erosional pediment surfaces underscores the crux of the 'pediment problem' that has baffled geologists since 1877(described in the Part I ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landscape Evolution, Modeling/Physical Experiments, Weathering/Soils, Landforms/Processes:Fluvial, Hillslopes, Geoscience:Geology:Geomorphology:Landforms/Processes, Arid Region Geomorphology
Vignette Type: Process, Computation

Some useful Non-dimensional Numbers in Geomorphology and the Art of Deriving New Ones
Nikki Strong, University of Minnesota-Twin Cities
Units of Measure One can express physical quantities in terms of many different units of measure and a particular quantity can take on very different numerical values under different unit systems. For example, ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Dating and Rates, Modeling/Physical Experiments, Landscape Evolution, Landforms/Processes
Vignette Type: Computation

Natural tree death, forest harvest, changes in hillslope hydrology, and implications to slope stability
Adelaide vignette Johnson
Death of trees by either forest harvest or by natural forest decline may result in increases in soil saturation, flooding, and landslides. These geomorphic processes, potentially differing in frequency and ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes, Modeling/Physical Experiments, Environmental Science:Natural Hazards:Mass Wasting, Geoscience:Geology:Geomorphology:Landforms/Processes:Hillslopes, Mass Movement
Vignette Type: Process

Sediment Entrainment and Channel Lifetimes in Braided Streams
allen hunt
Braided streams are typically found on steep slopes (high energy environments) with an abundance of sediment. Their channels are constantly choking up with sediments and shifting. This gives rise to the concept of ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Modeling/Physical Experiments
Vignette Type: Process

The role of hydraulics in fine-grained sedimentation within river channels: an example from the Ovens River, Australia
Geoff Vietz
River channels contain sediment deposits such as bars and benches which provide important ecological habitat for fish, macroinvertebrates and riparian and aquatic vegetation. Bars and benches influence flow to ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Modeling/Physical Experiments
Vignette Type: Process

When a tree falls in the forest, does it make a soil?
Emmanuel Gabet
When a Tree Falls Over A tree, like most plants, sends roots down into soil and bedrock to absorb water and nutrients. The roots also anchor the tree to the ground and prevents it from tipping over. Strong wind ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Modeling/Physical Experiments, Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Weathering/Soils, Landforms/Processes
Vignette Type: Process

The Katahdin Esker
Roger Hooke
Introduction Many landforms left by continental ice sheets owe their origin to thermal conditions at the glacier bed. Among these are thrust features1 (Moran and others, 1980); periglacial landforms dating from ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Glacial/Periglacial, Geoscience:Geology:Geomorphology:Modeling/Physical Experiments

Topographic signatures of lithologies in the Modi Khola valley of central Nepal
Lisa Walsh, University of Maryland-College Park
Rock resistivity to erosion plays a vital role in the evolution of the Earth's topography. Since different rock types exhibit different levels of resistivity to erosion, the more resistant rock types tend to ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landscape Evolution, Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Tectonic Geomorphology, Weathering/Soils, Geoscience:Geology:Tectonics, Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Modeling/Physical Experiments, GIS/Mapping/Field Techniques, Landforms/Processes
Vignette Type: Computation, Process

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