Open Access. Powered by Scholars. Published by Universities.®
Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Geography (21)
- Geosciences, Multidisciplinary (8)
- Environmental Sciences; Limnology; Water Resources (7)
- Fluvial geomorphology (4)
- Alpine (3)
-
- Geomorphology (3)
- Arroyos (2)
- Dams (2)
- Ecology; Soil Science; Water Resources (2)
- Glacial (2)
- Multidisciplinary Sciences (2)
- Rivers (2)
- Aquatic and riparian habitats (1)
- Arroyo (1)
- Channel processes (1)
- Church Rock (1)
- Cirque (1)
- Colorado Plateau (1)
- Colorado River (1)
- Endangered species (1)
- Environmental Sciences (1)
- Environmental management (1)
- Federal science (1)
- Fluvial (1)
- Fluvial processes (1)
- GIScience (1)
- Geographic ideas (1)
- Geographic research (1)
- Geographic thought (1)
- Geography, Physical; Geology; Geosciences, Multidisciplinary (1)
- File Type
Articles 31 - 60 of 118
Full-Text Articles in Social and Behavioral Sciences
Science, Public-Policy, And Western American Rivers, William Graf
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
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
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.
Environmental Science: Aging Infrastructure And Ecosystem Restoration, Martin Doyle, Emily Stanley, David Havlick, Mark Kaiser, George Steinbach, William Graf, Gerald Galloway, J. Riggsbee
Environmental Science: Aging Infrastructure And Ecosystem Restoration, Martin Doyle, Emily Stanley, David Havlick, Mark Kaiser, George Steinbach, William Graf, Gerald Galloway, J. Riggsbee
William L. Graf
No abstract provided.
How Geographers Can Connect With Policy Makers, William Graf
How Geographers Can Connect With Policy Makers, William Graf
William L. Graf
No abstract provided.
Minimum Flow Rules For South Carolina Rivers, William L. Graf
Minimum Flow Rules For South Carolina Rivers, William L. Graf
William L. Graf
No abstract provided.
Geomorphology Begins A Global Era, William Graf
Systems, Patterns, Movements, And Cycles, William Graf, P. Gober
Systems, Patterns, Movements, And Cycles, William Graf, P. Gober
William L. Graf
No abstract provided.
Fluvial Erosion And Federal Public Policy In The Navajo Nation, William Graf
Fluvial Erosion And Federal Public Policy In The Navajo Nation, William Graf
William L. Graf
No abstract provided.
Remote Sensing: Techniques For Environmental Analysis, By J.E. Estes And L.W. Senger, William Graf
Remote Sensing: Techniques For Environmental Analysis, By J.E. Estes And L.W. Senger, William Graf
William L. Graf
No abstract provided.
A Cumulative Stream-Ordering System, William Graf
A Cumulative Stream-Ordering System, William Graf
William L. Graf
No abstract provided.
Rivers, Dams, And Willow Flycatchers: A Summary Of Their Science And Policy Connections, William Graf, Julie Stromberg, Brad Valentine
Rivers, Dams, And Willow Flycatchers: A Summary Of Their Science And Policy Connections, William Graf, Julie Stromberg, Brad Valentine
William L. Graf
The southwestern willow flycatcher (Empidonax traillii extimus) is a riparian bird that spends winter months in Central and South America and summer breeding months in riparian zones of the American Southwest. Decline of the willow flycatcher population to less than 1000 breeding pairs prompted the Federal government to declare the species endangered, triggering a major recovery effort. The most important aspect of recovery is management and improvement of the riparian habitat of the bird population. Although the direct management of the species is primarily a biological issue, fluvial hydrology and geomorphology play an important role in understanding the dynamics of …
The Arroyo Problem: Paleohydrology And Paleohydraulics In The Short Term, William Graf
The Arroyo Problem: Paleohydrology And Paleohydraulics In The Short Term, William Graf
William L. Graf
No abstract provided.
The Wild Canyon Of Ladore, William Graf
Geomorphology, William Graf, J. Lee
The Geography Of American Field Geomorphology, William Graf
The Geography Of American Field Geomorphology, William Graf
William L. Graf
No abstract provided.
Ch 6: Geography's Contributions To Policy, William Graf
Ch 6: Geography's Contributions To Policy, William Graf
William L. Graf
No abstract provided.
A Probabilistic Approach To The Spatial Assessment Of River Channel Instability, William L. Graf
A Probabilistic Approach To The Spatial Assessment Of River Channel Instability, William L. Graf
William L. Graf
The deterministic approach to the analysis of river channel instability has not proved to be a completely useful basis for geographic predictions of channel behavior. Economic estimates for benefits of structural channel control projects commonly account for flood inundation, but in arid and semiarid regions these estimates are incomplete because they fail to take into account destructive channel migration and erosion. As a solution, a method whereby historical records of channel locations are reduced to spatially defined probabilistic functions allows calculation of the probability that given parcels of near-channel terrain will be destroyed by erosion. The probability of erosion for …
Plutonium In River Sediments Of The Northern Rio Grande: The Los Alamos Contribution In Context, William Graf
Plutonium In River Sediments Of The Northern Rio Grande: The Los Alamos Contribution In Context, William Graf
William L. Graf
No abstract provided.
Dam Removal Research, William Graf
Mining And Channel Response, William Graf
Mining And Channel Response, William Graf
William L. Graf
Gold and silver mining activities in the Central City District, Colorado, caused severe disruption of the landscape. Central City is typical of mountain mining towns with clearly defined periods of discovery and settlement, bonanza, investment, development, and, finally, decline. Arroyos and gullies developed on many valley floors as responses to increases in channel tractive force from 1 dyne before settlement to 8 dynes during the mining period. The spatial distribution of energy and force has been substantially altered by human activities. Threshold values of erosive force were surpassed in response to changes in general basin vegetation cover, valley floor vegetation, …
Physical Integrity Of Rivers, William Graf
Geomorphology For Western Water Policy, William Graf
Geomorphology For Western Water Policy, William Graf
William L. Graf
No abstract provided.
Consensus And Conflict In Quaternary Research, William Graf
Consensus And Conflict In Quaternary Research, William Graf
William L. Graf
No abstract provided.
Ch 10: The Institutional Context For Science, William Graf
Ch 10: The Institutional Context For Science, William Graf
William L. Graf
No abstract provided.
Riparian Management: A Flood-Control Perspective, William Graf
Riparian Management: A Flood-Control Perspective, William Graf
William L. Graf
No abstract provided.
The Grand Canyon Geographical Suite, William Graf
The Grand Canyon Geographical Suite, William Graf
William L. Graf
No abstract provided.
Twenty-Two Entries For Geomorphology And Hydrology, William Graf
Twenty-Two Entries For Geomorphology And Hydrology, William Graf
William L. Graf
No abstract provided.
Geomorphological Research In The Colorado Plateau, William Graf
Geomorphological Research In The Colorado Plateau, William Graf
William L. Graf
No abstract provided.
Downstream Geomorphic Impacts Of Large American Dams, William L. Graf
Downstream Geomorphic Impacts Of Large American Dams, William L. Graf
William L. Graf
No abstract provided.