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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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(Sediment) Accounting 101: An Example
Chuck Podolak, Johns Hopkins University
I. Introduction Rivers transport both water and sediment [rock fragments such as sand and gravel] from hillsides to the oceans. As sediment moves downstream it creates river bars, accumulates into floodplains, and ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:GIS/Mapping/Field Techniques, Landforms/Processes:Fluvial
Vignette Type: Process, Computation

An Example of One River's Response to a Large Dam Removal
Chuck Podolak, Johns Hopkins University
Damming a river can provide hydropower, water storage, and/or flood control, but at the same time may have adverse effects on fish and other aquatic species, flood land behind a dam, or degrade a river downstream ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial

Glacier Fluctuations Since the Last Glacial Maximum in Southwest Alaska
Jonathan Harvey
Glacier fluctuations since the last glacial maximum in southwest Alaska Introduction During the last glacial maximum (LGM), alpine glaciers in the western cordillera expanded, coalesced, and flowed onto ...

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

Arroyo Cutting in the Southwestern U.S.
Jonathan Harvey
Introduction In the semiarid southwestern United States, water is extremely important. However, most streams in the region are ephemeral, meaning that they are dry for much of the year and flow only during flash ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Dating and Rates, Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Arid Region Geomorphology, Climate/Paleoclimate
Vignette Type: Stratigraphy, Chronology, Process

Coastal Geomorphology and Policy Applications along Southern Monterey Bay, California
Douglas Smith, California State University-Monterey Bay
Introduction Global sea level stood between 100 m and 130 m lower than today's sea level 18,000 years ago at the peak of the latest ice age. Since that time, melting ice and thermally expanding oceans have ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Coastal-zone, Geoscience:Geology:Geomorphology:Geomorphology as applied to other disciplines, Landforms/Processes, Landscape Evolution, GIS/Mapping/Field Techniques
Vignette Type: Process

Marine Geomorphology: Geomorphic Processes, Hazards, and Paradoxes in Monterey Canyon
Douglas Smith, California State University-Monterey Bay
Introduction While traditional geomorphic studies focus on the geologic processes and products that shape our terrestrial topography, there are equally exciting opportunities to explore the other 71% of the planet ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Coastal-zone, Geoscience:Geology:Geomorphology:GIS/Mapping/Field Techniques, Landforms/Processes, Geomorphology as applied to other disciplines, Environmental Science:Natural Hazards:Earthquakes, Geoscience:Geology:Geomorphology:Dating and Rates, Landforms/Processes:Mass Movement
Vignette Type: Computation, Process

The Occurrence of Small-Scale Debris Fans in Sandstone Landscapes of the Central Appalachians
Steve Taylor, Western Oregon University
Alluvial fans occur in diverse landscapes, and represent critical sites of sediment routing in mountainous watersheds. These radiating, wedge-shaped deposits of sediment are commonly associated with high-energy ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:GIS/Mapping/Field Techniques, Landforms/Processes
Vignette Type: Computation, Process

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:Landscape Evolution, Climate/Paleoclimate, Modeling/Physical Experiments
Vignette Type: Computation

Constraining the timing of soil formation in linear dunes: A case study from the Strzelecki and Tirari Deserts, central Australia
Kathryn Fitzsimmons
Desert dune formation can be episodic. The intensity of aeolian activity varies in response to environmental conditions, including concentrated reworking events and periods of prolonged partial activity. Buried ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Climate/Paleoclimate, Arid Region Geomorphology, Dating and Rates
Vignette Type: Chronology, Stratigraphy

Fluvial terrace history, Kings Creek, Manhattan, Kansas
charles oviatt, Kansas State University
Natural cutbank exposures along streams can provide information about the geomorphic history of the stream valley. In a fluvial system, extrinsic factors, such as climate, tectonics, or land use, can lead to ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landscape Evolution, Landforms/Processes, Landforms/Processes:Fluvial
Vignette Type: Chronology, Stratigraphy, Process

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