Robert Jacobson, PhD (Former Employee)
Science and Products
Filter Total Items: 14
Filter Total Items: 142
Fluvial processes and passive rehabilitation of the Lisbon Bottom side-channel chute, Lower Missouri River Fluvial processes and passive rehabilitation of the Lisbon Bottom side-channel chute, Lower Missouri River
Multiple large floods in 1993-1997 on the Lower Missouri River carved a side-channel chute through the river bottom at Lisbon, Missouri. Although similar in some respects to engineered side-channel chutes designed for habitat rehabilitation projects, the Lisbon Bottom chute has been unique in that it was allowed to evolve for more than four years with minimal stabilization. During the...
Authors
Robert Jacobson, Mark Laustrup, Michael Chapman
Land-use changes and the physical habitat of streams - a review with emphasis on studies within the U.S. Geological Survey Federal-State Cooperative Program Land-use changes and the physical habitat of streams - a review with emphasis on studies within the U.S. Geological Survey Federal-State Cooperative Program
Understanding the links between land-use changes and physical stream habitat responses is of increasing importance to guide resource management and stream restoration strategies. Transmission of runoff and sediment to streams can involve complex responses of drainage basins, including time lags, thresholds, and cumulative effects. Land-use induced runoff and sediment yield often combine...
Authors
Robert Jacobson, Suzanne Femmer, Rose McKenney
Relations among geology, physiography, land use, and stream habitat conditions in the Buffalo and Current River systems, Missouri and Arkansas Relations among geology, physiography, land use, and stream habitat conditions in the Buffalo and Current River systems, Missouri and Arkansas
This study investigated links between drainage-basin characteristics and stream habitat conditions in the Buffalo National River, Arkansas and the Ozark National Scenic Riverways, Missouri. It was designed as an associative study - the two parks were divided into their principle tributary drainage basins and then basin-scale and stream-habitat data sets were gathered and compared between...
Authors
Maria Panfil, Robert Jacobson
Warmwater streams: Chapter 19 Warmwater streams: Chapter 19
No abstract available.
Authors
Robert Jacobson
Physical setting: Chapter 1 in Initial biotic survey of Lisbon Bottom, Big Muddy National Fish and Wildlife Refuge Physical setting: Chapter 1 in Initial biotic survey of Lisbon Bottom, Big Muddy National Fish and Wildlife Refuge
Lisbon Bottom consists of approximately 875 ha of river bottom along the Missouri River in Howard County, Missouri, from approximately river mile (RM) 213 to RM 219. As used in this report, the Lisbon Bottom area also includes the main channel of the Missouri River adjacent to the Lisbon Bottom and portions of the adjacent flood plain in Saline County, Missouri. Before regulation and...
Authors
Robert Jacobson, Mark Laustrup, Ellen Ehrhardt, Curt Niebur, Raymond Arvidson
Gravel sediment routing from widespread, low-intensity landscape disturbance, Current River basin, Missouri Gravel sediment routing from widespread, low-intensity landscape disturbance, Current River basin, Missouri
During the last 160 years, land-use changes in the Ozarks have had the potential to cause widespread, low-intensity delivery of excess amounts of gravel-sized sediment to stream channels. Previous studies have indicated that this excess gravel bedload is moving in wave-like forms through Ozarks drainage basins. The longitudinal, areal distribution of gravel bars along 160 km of the...
Authors
Robert Jacobson, K.B. Gran
Riparian-vegetation controls on the spatial pattern of stream-channel instability, Little Piney Creek, Missouri Riparian-vegetation controls on the spatial pattern of stream-channel instability, Little Piney Creek, Missouri
The role of riparian vegetation is assessed quantitatively by using a five-decade record of valley bottom vegetation and channel dynamics developed from historical aerial photography. A 12-kilometer reach of a typical Ozarks stream was mapped using aerial photographs from 1938, 1948, 1955, 1965, 1976, and 1989; maps were then analyzed in a digital geographic information system. Analysis...
Authors
Robert Jacobson, Aaron L. Pugh
Historical land-use changes and potential effects on stream disturbance in the Ozark Plateaus, Missouri Historical land-use changes and potential effects on stream disturbance in the Ozark Plateaus, Missouri
Land-use changes have been blamed for creating disturbance in the morphology of streams in the Ozark Plateaus, Missouri (hereafter referred to as the "Ozarks"). Historical evidence and stratigraphic observations document that streams have been aggraded by substantial quantities of gravel beginning sometime at or near the time of European settlement of the Ozarks. Before European...
Authors
Robert Jacobson, Alexander Primm
Scour, sedimentation, and sediment characteristics at six levee-break sites in Missouri from the 1993 Missouri River Flood Scour, sedimentation, and sediment characteristics at six levee-break sites in Missouri from the 1993 Missouri River Flood
No abstract available.
Authors
G.K. Schalk, R. B. Jacobson
Geomorphic changes on the Mississippi River flood plain at Miller City, Illinois, as a result of the flood of 1993 Geomorphic changes on the Mississippi River flood plain at Miller City, Illinois, as a result of the flood of 1993
During the 1993 floods on the upper Mississippi and Missouri rivers, the most dramatic changes to floodplains occurred at levee-break complexes where large discharges were concentrated through narrow breaks in levees. Scour and deposition associated with levee breaks adversely affected large areas of formerly productive bottomland. This case study of the levee-break complex at Miller...
Authors
Robert Jacobson, Kevin Oberg
Erosion and deposition at the riffle-pool scale in gravel-bed streams, Ozark Plateaus, Missouri and Arkansas, 1990-95 Erosion and deposition at the riffle-pool scale in gravel-bed streams, Ozark Plateaus, Missouri and Arkansas, 1990-95
No abstract available.
Authors
R.A. McKenney, R. B. Jacobson
Spatial controls on patterns of land-use induced stream disturbance at the drainage-basin scale: an example from gravel-bed streams of the Ozark Plateaus, Missouri Spatial controls on patterns of land-use induced stream disturbance at the drainage-basin scale: an example from gravel-bed streams of the Ozark Plateaus, Missouri
No abstract available.
Authors
Robert Jacobson
Non-USGS Publications**
Jacobson, R. B., 1986, Genesis and distribution of colluvium, Buffalo Creek Area, Marion County, West Virginia: Transportation Research Record, Transportation Research Board, v. 1089, p. 63-67.
Jacobson, R. B., and Coleman, D.J., 1986, Stratigraphy and recent evolution of Maryland Piedmont flood plains: American Journal of Science, v. 286, p. 617-637
**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
Filter Total Items: 14
Filter Total Items: 142
Fluvial processes and passive rehabilitation of the Lisbon Bottom side-channel chute, Lower Missouri River Fluvial processes and passive rehabilitation of the Lisbon Bottom side-channel chute, Lower Missouri River
Multiple large floods in 1993-1997 on the Lower Missouri River carved a side-channel chute through the river bottom at Lisbon, Missouri. Although similar in some respects to engineered side-channel chutes designed for habitat rehabilitation projects, the Lisbon Bottom chute has been unique in that it was allowed to evolve for more than four years with minimal stabilization. During the...
Authors
Robert Jacobson, Mark Laustrup, Michael Chapman
Land-use changes and the physical habitat of streams - a review with emphasis on studies within the U.S. Geological Survey Federal-State Cooperative Program Land-use changes and the physical habitat of streams - a review with emphasis on studies within the U.S. Geological Survey Federal-State Cooperative Program
Understanding the links between land-use changes and physical stream habitat responses is of increasing importance to guide resource management and stream restoration strategies. Transmission of runoff and sediment to streams can involve complex responses of drainage basins, including time lags, thresholds, and cumulative effects. Land-use induced runoff and sediment yield often combine...
Authors
Robert Jacobson, Suzanne Femmer, Rose McKenney
Relations among geology, physiography, land use, and stream habitat conditions in the Buffalo and Current River systems, Missouri and Arkansas Relations among geology, physiography, land use, and stream habitat conditions in the Buffalo and Current River systems, Missouri and Arkansas
This study investigated links between drainage-basin characteristics and stream habitat conditions in the Buffalo National River, Arkansas and the Ozark National Scenic Riverways, Missouri. It was designed as an associative study - the two parks were divided into their principle tributary drainage basins and then basin-scale and stream-habitat data sets were gathered and compared between...
Authors
Maria Panfil, Robert Jacobson
Warmwater streams: Chapter 19 Warmwater streams: Chapter 19
No abstract available.
Authors
Robert Jacobson
Physical setting: Chapter 1 in Initial biotic survey of Lisbon Bottom, Big Muddy National Fish and Wildlife Refuge Physical setting: Chapter 1 in Initial biotic survey of Lisbon Bottom, Big Muddy National Fish and Wildlife Refuge
Lisbon Bottom consists of approximately 875 ha of river bottom along the Missouri River in Howard County, Missouri, from approximately river mile (RM) 213 to RM 219. As used in this report, the Lisbon Bottom area also includes the main channel of the Missouri River adjacent to the Lisbon Bottom and portions of the adjacent flood plain in Saline County, Missouri. Before regulation and...
Authors
Robert Jacobson, Mark Laustrup, Ellen Ehrhardt, Curt Niebur, Raymond Arvidson
Gravel sediment routing from widespread, low-intensity landscape disturbance, Current River basin, Missouri Gravel sediment routing from widespread, low-intensity landscape disturbance, Current River basin, Missouri
During the last 160 years, land-use changes in the Ozarks have had the potential to cause widespread, low-intensity delivery of excess amounts of gravel-sized sediment to stream channels. Previous studies have indicated that this excess gravel bedload is moving in wave-like forms through Ozarks drainage basins. The longitudinal, areal distribution of gravel bars along 160 km of the...
Authors
Robert Jacobson, K.B. Gran
Riparian-vegetation controls on the spatial pattern of stream-channel instability, Little Piney Creek, Missouri Riparian-vegetation controls on the spatial pattern of stream-channel instability, Little Piney Creek, Missouri
The role of riparian vegetation is assessed quantitatively by using a five-decade record of valley bottom vegetation and channel dynamics developed from historical aerial photography. A 12-kilometer reach of a typical Ozarks stream was mapped using aerial photographs from 1938, 1948, 1955, 1965, 1976, and 1989; maps were then analyzed in a digital geographic information system. Analysis...
Authors
Robert Jacobson, Aaron L. Pugh
Historical land-use changes and potential effects on stream disturbance in the Ozark Plateaus, Missouri Historical land-use changes and potential effects on stream disturbance in the Ozark Plateaus, Missouri
Land-use changes have been blamed for creating disturbance in the morphology of streams in the Ozark Plateaus, Missouri (hereafter referred to as the "Ozarks"). Historical evidence and stratigraphic observations document that streams have been aggraded by substantial quantities of gravel beginning sometime at or near the time of European settlement of the Ozarks. Before European...
Authors
Robert Jacobson, Alexander Primm
Scour, sedimentation, and sediment characteristics at six levee-break sites in Missouri from the 1993 Missouri River Flood Scour, sedimentation, and sediment characteristics at six levee-break sites in Missouri from the 1993 Missouri River Flood
No abstract available.
Authors
G.K. Schalk, R. B. Jacobson
Geomorphic changes on the Mississippi River flood plain at Miller City, Illinois, as a result of the flood of 1993 Geomorphic changes on the Mississippi River flood plain at Miller City, Illinois, as a result of the flood of 1993
During the 1993 floods on the upper Mississippi and Missouri rivers, the most dramatic changes to floodplains occurred at levee-break complexes where large discharges were concentrated through narrow breaks in levees. Scour and deposition associated with levee breaks adversely affected large areas of formerly productive bottomland. This case study of the levee-break complex at Miller...
Authors
Robert Jacobson, Kevin Oberg
Erosion and deposition at the riffle-pool scale in gravel-bed streams, Ozark Plateaus, Missouri and Arkansas, 1990-95 Erosion and deposition at the riffle-pool scale in gravel-bed streams, Ozark Plateaus, Missouri and Arkansas, 1990-95
No abstract available.
Authors
R.A. McKenney, R. B. Jacobson
Spatial controls on patterns of land-use induced stream disturbance at the drainage-basin scale: an example from gravel-bed streams of the Ozark Plateaus, Missouri Spatial controls on patterns of land-use induced stream disturbance at the drainage-basin scale: an example from gravel-bed streams of the Ozark Plateaus, Missouri
No abstract available.
Authors
Robert Jacobson
Non-USGS Publications**
Jacobson, R. B., 1986, Genesis and distribution of colluvium, Buffalo Creek Area, Marion County, West Virginia: Transportation Research Record, Transportation Research Board, v. 1089, p. 63-67.
Jacobson, R. B., and Coleman, D.J., 1986, Stratigraphy and recent evolution of Maryland Piedmont flood plains: American Journal of Science, v. 286, p. 617-637
**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.