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443,481 full-text articles. Page 8956 of 9758.

Morphotectonics, William Graf 2010 University of South Carolina - Columbia

Morphotectonics, William Graf

William L. Graf

No abstract provided.


Fluvial Adjustments To Spread Of Tamarisk In Colorado Plateau Region, William Graf 2010 University of South Carolina- Columbia

Fluvial Adjustments To Spread Of Tamarisk In Colorado Plateau Region, William Graf

William L. Graf

Tamarisk, a shrub or low tree that was artificially introduced into the American Southwest in the late 1800s, has spread throughout the Colorado Plateau region by occupying islands, sand bars, and beaches along streams. Historical photographs show that tamarisk spread from northern Arizona to the upper reaches of the Colorado and Green Rivers at a rate of about 20 km/yr. Detailed studies on the Green River in Canyonlands National Park, Utah, show that the plant has trapped and stabilized sediment, causing an average reduction in channel width of 27%. Photogrammetric analysis of historical ground photography, including photos from John ...


Spatial Variation Of Fluvial Processes In Semi-Arid Lands, William Graf 2010 University of South Carolina- Columbia

Spatial Variation Of Fluvial Processes In Semi-Arid Lands, William Graf

William L. Graf

No abstract provided.


Fluvial Adjustments To Spread Of Tamarisk In Colorado Plateau Region - Reply, William Graf 2010 University of South Carolina- Columbia

Fluvial Adjustments To Spread Of Tamarisk In Colorado Plateau Region - Reply, William Graf

William L. Graf

No abstract provided.


Testimony In Support Of The Congaree National Park Act Of 2003, William Graf 2010 University of South Carolina- Columbia

Testimony In Support Of The Congaree National Park Act Of 2003, William Graf

William L. Graf

No abstract provided.


Death In The Marsh, William Graf 2010 University of South Carolina- Columbia

Death In The Marsh, William Graf

William L. Graf

No abstract provided.


Catastrophe Theory As A Model For Change In Fluvial Systems, William Graf 2010 University of South Carolina- Columbia

Catastrophe Theory As A Model For Change In Fluvial Systems, William Graf

William L. Graf

No abstract provided.


Criteria For Watershed Sustainability: Proceedings Of A Workshop--Report To The President's Council On Sustainable Development, William Graf 2010 University of South Carolina- Columbia

Criteria For Watershed Sustainability: Proceedings Of A Workshop--Report To The President's Council On Sustainable Development, William Graf

William L. Graf

No abstract provided.


The Geography Of Geomorphologists In The United States, J. Costa, William Graf 2010 University of South Carolina- Columbia

The Geography Of Geomorphologists In The United States, J. Costa, William Graf

William L. Graf

No abstract provided.


Relationship Between Morphology Of Small Streams And Sediment Yield, H. Chang, William Graf, E. Grissinger, H. Guy, W. Osterkamp, G. Parker, S. Trimble, L. Lane 2010 University of South Carolina- Columbia

Relationship Between Morphology Of Small Streams And Sediment Yield, H. Chang, William Graf, E. Grissinger, H. Guy, W. Osterkamp, G. Parker, S. Trimble, L. Lane

William L. Graf

The state of the art in the relations between morphology of small streams and sediment yield is assessed. Research findings and recommendations for additional research are presented. Topics include systems and interactions, simulation models, channel forms and processes, transport of sediment in small streams, and aspects of channel morphology. Selected topics for additional research are also included.


Why Physical Geographers Whine So Much, William Graf 2010 University of South Carolina- Columbia

Why Physical Geographers Whine So Much, William Graf

William L. Graf

No abstract provided.


Process In Geomorphology, By C. Embleton And J. Thornes, William Graf 2010 University of South Carolina - Columbia

Process In Geomorphology, By C. Embleton And J. Thornes, William Graf

William L. Graf

No abstract provided.


Geographers' Too Small World, William Graf 2010 University of South Carolina- Columbia

Geographers' Too Small World, William Graf

William L. Graf

No abstract provided.


Dry Lands: Man And Plants, By R. Adams, M. Adams, A. Willens, And A. Willens, William Graf 2010 University of South Carolina- Columbia

Dry Lands: Man And Plants, By R. Adams, M. Adams, A. Willens, And A. Willens, William Graf

William L. Graf

No abstract provided.


The Changing Role Of Dams In Water Resources Management, William Graf 2010 University of South Carolina- Columbia

The Changing Role Of Dams In Water Resources Management, William Graf

William L. Graf

No abstract provided.


Quaternary And Geomorphology, J. Andrews, William Graf 2010 University of South Carolina - Columbia

Quaternary And Geomorphology, J. Andrews, William Graf

William L. Graf

No abstract provided.


Fluvial Processes In The Lower Fremont River Basin, William Graf 2010 University of South Carolina- Columbia

Fluvial Processes In The Lower Fremont River Basin, William Graf

William L. Graf

No abstract provided.


Science, Public-Policy, And Western American Rivers, William Graf 2010 University of South Carolina- Columbia

Science, Public-Policy, And Western American Rivers, William Graf

William L. Graf

Effective science and well-informed public policy are the avenues to successful management of environmental resources. A critical review of geomorphology, hydrology, and public policy as employed in the management of the river resources of the western United States shows that the endeavours have been poorly connected to each other. Before about 1930, river management disregarded scientific input, while during the New Deal era federal support for river research stimulated a symbiotic relationship between science and policy. Renewed federal funding for research and the emergence of increasingly sophisticated theory and data for rivers during the 1950-1970 period enhanced the connection between ...


Streams, Slopes, And Suburban Development, William Graf 2010 University of South Carolina- Columbia

Streams, Slopes, And Suburban Development, William Graf

William L. Graf

The percent of available relief in the form of free-face slope and the percent of valley width as floodplain change systematically throughout drainage networks in response to changes in network position. The energy level and discharge of streams at the bases of slopes may be assessed by means of a cumulative stream-ordering system wherein the stream order is directly related to discharge. Investigations of several small drainage basins on the rim of the Denver Basin, Colorado, by means of field measurements, interpretation of aerial photography, and operation of a computer model provide data that indicate that the distribution of near-channel ...


The Big Unanswered Questions In Geography, Reginald Golledge, William Graf, Susan Cutter 2010 University of California - Santa Barbara

The Big Unanswered Questions In Geography, Reginald Golledge, William Graf, Susan Cutter

William L. Graf

In noting his fondness for geography, John Noble Wilford, science correspondent for The New York Times, nevertheless challenged the discipline to articulate those big questions in our field, ones that would generate public interest, media attention, and the respect of policymakers. This article presents our collective judgments on those significant issues that warrant disciplinary research. We phrase these as a series of ten questions in the hopes of stimulating a dialogue and collective research agenda for the future and the next generation of geographic professionals.


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