David M Rubin (Former Employee)
Science and Products
Filter Total Items: 69
Bed-sediment grain-size and morphologic data from Suisun, Grizzly, and Honker Bays, CA, 1998-2002 Bed-sediment grain-size and morphologic data from Suisun, Grizzly, and Honker Bays, CA, 1998-2002
The USGS Place Based Studies Program for San Francisco Bay investigates this sensitive estuarine system to aid in resource management. As part of the inter-disciplinary research program, the USGS collected side-scan sonar data and bed-sediment samples from north San Francisco Bay to characterize bed-sediment texture and investigate temporal trends in sedimentation. The study area is...
Authors
Margaret A. Hampton, Noah P. Snyder, John L. Chin, Dan W. Allison, David M. Rubin
Under San Francisco Bay — A new view of the floor of west-central San Francisco Bay Under San Francisco Bay — A new view of the floor of west-central San Francisco Bay
No abstract available.
Authors
David A. Cacchione, Paul R. Carlson, Pat F. Chavez, John L. Chin, Peter Dartnell, James V. Gardner, Helen Gibbons, David M. Rubin, Miguel Velasco, Florence L. Wong
Tsunami Tsunami
No abstract available.
Authors
Lori Dengler, Jose C. Borrero, Guy Gelfenbaum, Bruce Jaffe, Emile A. Okal, Modesto Ortiz, Vasily V. Titov, Roberto Anima, Luis Bernales Anticona, Sebastian Araya, Brandon Gomer, J. Gomez, Shun-ichi Koshimura, Gustavo Laos, Leonidas Ocala, Daniel Olcese, Robert Peters, Percy Colque Riega, David M. Rubin, Matthew Swensson, Fernando Vegas
Recent sediment studies refute Glen Canyon Dam hypothesis Recent sediment studies refute Glen Canyon Dam hypothesis
Recent studies of sedimentology hydrology, and geomorphology indicate that releases from Glen Canyon Dam are continuing to erode sandbars and beaches in the Colorado River in Grand Canyon National Park, despite attempts to restore these resources. The current strategy for dam operations is based on the hypothesis that sand supplied by tributaries of the Colorado River downstream from the...
Authors
David M. Rubin, David J. Topping, John C. Schmidt, Joe Hazel, Matt Kaplinski, Theodore S. Melis
The internal structure of sand bars on the Colorado River, Grand Canyon, as determined by ground-penetrating radar The internal structure of sand bars on the Colorado River, Grand Canyon, as determined by ground-penetrating radar
High-resolution, subsurface imagery from ground-penetrating radar (GPR) has revealed the internal structure of sand bars at seven sites on the Colorado River, Grand Canyon. Based on reconnaissance-level surveys, we recognized three stratigraphic units and several intervening unconformities. Unit A, which exhibits hyperbolic reflections and always occurs at the base of the section, is...
Authors
Walter A. Barnhardt, Robert Kayen, David Rubin, Diane L. Minasian
Quantifying the relative importance of flow regulation and grain size regulation of suspended sediment transport α and tracking changes in grain size of bed sediment β Quantifying the relative importance of flow regulation and grain size regulation of suspended sediment transport α and tracking changes in grain size of bed sediment β
To predict changes in sediment transport, it is essential to know whether transport is regulated mainly by changes in flow or by changes in grain size of sediment on the bed. In flows where changes in suspended sediment transport are regulated purely by changes in flow (grain size of bed sediment is constant), increases in flow strength cause increases in both concentration and grain...
Authors
David M. Rubin, David J. Topping
Science and Products
Filter Total Items: 69
Bed-sediment grain-size and morphologic data from Suisun, Grizzly, and Honker Bays, CA, 1998-2002 Bed-sediment grain-size and morphologic data from Suisun, Grizzly, and Honker Bays, CA, 1998-2002
The USGS Place Based Studies Program for San Francisco Bay investigates this sensitive estuarine system to aid in resource management. As part of the inter-disciplinary research program, the USGS collected side-scan sonar data and bed-sediment samples from north San Francisco Bay to characterize bed-sediment texture and investigate temporal trends in sedimentation. The study area is...
Authors
Margaret A. Hampton, Noah P. Snyder, John L. Chin, Dan W. Allison, David M. Rubin
Under San Francisco Bay — A new view of the floor of west-central San Francisco Bay Under San Francisco Bay — A new view of the floor of west-central San Francisco Bay
No abstract available.
Authors
David A. Cacchione, Paul R. Carlson, Pat F. Chavez, John L. Chin, Peter Dartnell, James V. Gardner, Helen Gibbons, David M. Rubin, Miguel Velasco, Florence L. Wong
Tsunami Tsunami
No abstract available.
Authors
Lori Dengler, Jose C. Borrero, Guy Gelfenbaum, Bruce Jaffe, Emile A. Okal, Modesto Ortiz, Vasily V. Titov, Roberto Anima, Luis Bernales Anticona, Sebastian Araya, Brandon Gomer, J. Gomez, Shun-ichi Koshimura, Gustavo Laos, Leonidas Ocala, Daniel Olcese, Robert Peters, Percy Colque Riega, David M. Rubin, Matthew Swensson, Fernando Vegas
Recent sediment studies refute Glen Canyon Dam hypothesis Recent sediment studies refute Glen Canyon Dam hypothesis
Recent studies of sedimentology hydrology, and geomorphology indicate that releases from Glen Canyon Dam are continuing to erode sandbars and beaches in the Colorado River in Grand Canyon National Park, despite attempts to restore these resources. The current strategy for dam operations is based on the hypothesis that sand supplied by tributaries of the Colorado River downstream from the...
Authors
David M. Rubin, David J. Topping, John C. Schmidt, Joe Hazel, Matt Kaplinski, Theodore S. Melis
The internal structure of sand bars on the Colorado River, Grand Canyon, as determined by ground-penetrating radar The internal structure of sand bars on the Colorado River, Grand Canyon, as determined by ground-penetrating radar
High-resolution, subsurface imagery from ground-penetrating radar (GPR) has revealed the internal structure of sand bars at seven sites on the Colorado River, Grand Canyon. Based on reconnaissance-level surveys, we recognized three stratigraphic units and several intervening unconformities. Unit A, which exhibits hyperbolic reflections and always occurs at the base of the section, is...
Authors
Walter A. Barnhardt, Robert Kayen, David Rubin, Diane L. Minasian
Quantifying the relative importance of flow regulation and grain size regulation of suspended sediment transport α and tracking changes in grain size of bed sediment β Quantifying the relative importance of flow regulation and grain size regulation of suspended sediment transport α and tracking changes in grain size of bed sediment β
To predict changes in sediment transport, it is essential to know whether transport is regulated mainly by changes in flow or by changes in grain size of sediment on the bed. In flows where changes in suspended sediment transport are regulated purely by changes in flow (grain size of bed sediment is constant), increases in flow strength cause increases in both concentration and grain...
Authors
David M. Rubin, David J. Topping