Mackenzie Keith
Mackenzie Keith is a Hydrologist at the USGS Oregon Water Science Center.
Mackenzie joined the Oregon Water Science Center in 2009 as a hydrologist on the Geomorphology Team. Her main research focuses on documenting and understanding recent and historical physical changes to rivers to inform restoration and management decisions. Current projects include characterizing the geomorphic responses of dam removal on the Sandy River, mapping the Willamette River floodplain geomorphology, characterizing the coupled upstream-downstream geomorphic responses to deep reservoir drawdowns at Fall Creek Lake, and developing a geomorphic framework to inform erosion and deposition processes within Willamette Valley reservoirs.
Education and Certifications
B.S. in Geology, Oregon State University, 2006
M.S. in Geology, Portland State University, 2012
Science and Products
Below are data sets that Mackenzie Keith has authored.
Filter Total Items: 21
No Result Found
Below are publications that Mackenzie Keith has authored.
Filter Total Items: 34
Channel change and bed-material transport in the Umpqua River basin, Oregon Channel change and bed-material transport in the Umpqua River basin, Oregon
The Umpqua River drains 12,103 square kilometers of western Oregon; with headwaters in the Cascade Range, the river flows through portions of the Klamath Mountains and Oregon Coast Range before entering the Pacific Ocean. Above the head of tide, the Umpqua River, along with its major tributaries, the North and South Umpqua Rivers, flows on a mixed bedrock and alluvium bed, alternating...
Authors
J. Rose Wallick, Jim E. O'Connor, Scott Anderson, Mackenzie K. Keith, Charles Cannon, John Risley
Preliminary assessment of channel stability and bed-material transport along Hunter Creek, southwestern Oregon Preliminary assessment of channel stability and bed-material transport along Hunter Creek, southwestern Oregon
This preliminary assessment of (1) bed-material transport in the Hunter Creek basin, (2) historical changes in channel condition, and (3) supplementary data needed to inform permitting decisions regarding instream gravel extraction revealed the following: Along the lower 12.4 km (kilometers) of Hunter Creek from its confluence with the Little South Fork Hunter Creek to its mouth, the...
Authors
Krista Jones, J. Rose Wallick, Jim E. O'Connor, Mackenzie K. Keith, Joseph Mangano, John Risley
Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam
The October 2007 removal of Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 m3 of sand and gravel that filled the former reservoir were suddenly exposed to an energetic river. Using direct measurements of sediment transport, photogrammetry, and repeat surveys between transport events, we monitored the erosion, transport, and redeposition...
Authors
Jon Major, Jim O’Connor, Charles Podolak, Mackenzie K. Keith, Kurt Spicer, J. Rose Wallick, Heather M. Bragg, Smokey Pittman, Peter Wilcock, Abagail Rhode, Gordon E. Grant
Channel change and bed-material transport in the Umpqua River basin, Oregon Channel change and bed-material transport in the Umpqua River basin, Oregon
The Umpqua River drains 12,103 km2 of western Oregon, heading in the Cascade Range and draining portions of the Klamath Mountains and Coast Range before entering the Pacific Ocean. Above the head of tide, the Umpqua River, along with its major tributaries, the North and South Umpqua Rivers, flows on a mixed bedrock and alluvium bed, alternating between bedrock rapids and intermittent...
Authors
J. Rose Wallick, Jim E. O'Connor, Scott Anderson, Mackenzie K. Keith, Charles Cannon, John Risley
Non-USGS Publications**
Podolak, C.J., Major, J.J., Keith, M.K., O’Connor, J.E., and Wallick, J.R., 2010, One River’s Response to large dam removal, in Vignettes- on-line case study supplements to Bierman, Paul and Montgomery, David, (eds.), Key Concepts in Geomorphology: W.H. Freemen, Vermont, on-line supplement available at http://serc.carleton.edu/39733.
Podolak, C.J., Major, J.J., Keith, M.K., O’Connor, J.E., and Wallick, J.R., 2010, (Sediment) Accounting 101: An Example, in Vignettes- on-line case study supplements to Bierman, Paul and Montgomery, David, (eds.), Key Concepts in Geomorphology: W.H. Freemen, Vermont, on-line supplement available at http://serc.carleton.edu/39732.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Below are data sets that Mackenzie Keith has authored.
Filter Total Items: 21
No Result Found
Below are publications that Mackenzie Keith has authored.
Filter Total Items: 34
Channel change and bed-material transport in the Umpqua River basin, Oregon Channel change and bed-material transport in the Umpqua River basin, Oregon
The Umpqua River drains 12,103 square kilometers of western Oregon; with headwaters in the Cascade Range, the river flows through portions of the Klamath Mountains and Oregon Coast Range before entering the Pacific Ocean. Above the head of tide, the Umpqua River, along with its major tributaries, the North and South Umpqua Rivers, flows on a mixed bedrock and alluvium bed, alternating...
Authors
J. Rose Wallick, Jim E. O'Connor, Scott Anderson, Mackenzie K. Keith, Charles Cannon, John Risley
Preliminary assessment of channel stability and bed-material transport along Hunter Creek, southwestern Oregon Preliminary assessment of channel stability and bed-material transport along Hunter Creek, southwestern Oregon
This preliminary assessment of (1) bed-material transport in the Hunter Creek basin, (2) historical changes in channel condition, and (3) supplementary data needed to inform permitting decisions regarding instream gravel extraction revealed the following: Along the lower 12.4 km (kilometers) of Hunter Creek from its confluence with the Little South Fork Hunter Creek to its mouth, the...
Authors
Krista Jones, J. Rose Wallick, Jim E. O'Connor, Mackenzie K. Keith, Joseph Mangano, John Risley
Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam
The October 2007 removal of Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 m3 of sand and gravel that filled the former reservoir were suddenly exposed to an energetic river. Using direct measurements of sediment transport, photogrammetry, and repeat surveys between transport events, we monitored the erosion, transport, and redeposition...
Authors
Jon Major, Jim O’Connor, Charles Podolak, Mackenzie K. Keith, Kurt Spicer, J. Rose Wallick, Heather M. Bragg, Smokey Pittman, Peter Wilcock, Abagail Rhode, Gordon E. Grant
Channel change and bed-material transport in the Umpqua River basin, Oregon Channel change and bed-material transport in the Umpqua River basin, Oregon
The Umpqua River drains 12,103 km2 of western Oregon, heading in the Cascade Range and draining portions of the Klamath Mountains and Coast Range before entering the Pacific Ocean. Above the head of tide, the Umpqua River, along with its major tributaries, the North and South Umpqua Rivers, flows on a mixed bedrock and alluvium bed, alternating between bedrock rapids and intermittent...
Authors
J. Rose Wallick, Jim E. O'Connor, Scott Anderson, Mackenzie K. Keith, Charles Cannon, John Risley
Non-USGS Publications**
Podolak, C.J., Major, J.J., Keith, M.K., O’Connor, J.E., and Wallick, J.R., 2010, One River’s Response to large dam removal, in Vignettes- on-line case study supplements to Bierman, Paul and Montgomery, David, (eds.), Key Concepts in Geomorphology: W.H. Freemen, Vermont, on-line supplement available at http://serc.carleton.edu/39733.
Podolak, C.J., Major, J.J., Keith, M.K., O’Connor, J.E., and Wallick, J.R., 2010, (Sediment) Accounting 101: An Example, in Vignettes- on-line case study supplements to Bierman, Paul and Montgomery, David, (eds.), Key Concepts in Geomorphology: W.H. Freemen, Vermont, on-line supplement available at http://serc.carleton.edu/39732.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.