Gary P Johnson (Former Employee)
Science and Products
Filter Total Items: 29
The Great Flood of 1993 on the Upper Mississippi River—10 years later The Great Flood of 1993 on the Upper Mississippi River—10 years later
Ten years ago, the upper Mississippi River Basin in the Midwestern United States experienced the costliest flood in the history of the United States. The flood came to be known as “ The Great Flood of 1993.”
Authors
Gary Johnson, Robert Holmes, Loyd Waite
The history of dinosaur footprint discoveries in Wyoming with emphasis on the Bighorn Basin The history of dinosaur footprint discoveries in Wyoming with emphasis on the Bighorn Basin
Dinosaur traces are well known from the western United States in the Colorado Plateau region (Utah, Colorado, New Mexico, and Arizona). Utah contains the greatest abundance of known and documented dinosaur footprints and trackways. Far less well known, however, is the occurrence and distribution of dinosaur footprint-bearing horizons in Wyoming. Scientific studies over the past 10 years...
Authors
Erik Kvale, Debra Mickelson, Stephen Hasiotis, Gary Johnson
Monitoring and analysis of combined sewer overflows, Riverside and Evanston, Illinois, 1997-99 Monitoring and analysis of combined sewer overflows, Riverside and Evanston, Illinois, 1997-99
The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, collected and analyzed flow data in combined sewer systems in Riverside and Evanston, northeastern Illinois, from March 1997 to December 1999. Continuous 2- and 5-minute stage and velocity data were collected during surcharged and nonsurcharged conditions at 12 locations. Mass balances were calculated to...
Authors
Andrew Waite, Nancy Hornewer, Gary Johnson
Methodology, data collection, and data analysis for determination of water-mixing patterns induced by aerators and mixers Methodology, data collection, and data analysis for determination of water-mixing patterns induced by aerators and mixers
The U.S. Geological Survey collected and analyzed data to describe mixing patterns induced by aerators and mixers to aid in the calibration and verification of a three-dimensional hydrodynamic model. During September 1995, three-dimensional water-velocity profiles were collected during the operation of fine-bubble and coarse-bubble aerators in a test tank at the U.S. Army Corps of...
Authors
Gary Johnson, Nancy J. Hornewer, Dale Robertson, Darren Olson, Josh Gioja
Hydrology, water quality, and nutrient loads to Lake Catherine and Channel Lake, near Antioch, Lake County, Illinois Hydrology, water quality, and nutrient loads to Lake Catherine and Channel Lake, near Antioch, Lake County, Illinois
From April 21, 1998, through April 30, 1999, the U.S. Geological Survey, in cooperation with the Fox Waterway Agency, conducted an investigation designed to characterize the hydrology, water quality, hydrologic budget, sediment budget, and nutrient budget of Lake Catherine and Channel Lake, Lake County, Illinois. These lakes are the northernmost lakes of the Fox Chain of Lakes. Lake...
Authors
Robert Kay, Gary Johnson, David Schrader
Water sediment, and nutrient budgets, and bathymetric survey of Old and New Gillespie Lakes, Macoupin County, Illinois, May 1996-April 1997; with a discussion of lake-management practices Water sediment, and nutrient budgets, and bathymetric survey of Old and New Gillespie Lakes, Macoupin County, Illinois, May 1996-April 1997; with a discussion of lake-management practices
The Gillespie Lakes system serves as a drinking water source for the town of Gillespie, Illinois, and is a major recreational focus for the area. As part of an investigation of a concern that the lakes are being adversely affected by excessive sediment and nutrient in flows, this report presents hydrologic, sediment, and nutrient budgets for Old Gillespie Lake and New Gillespie Lake...
Authors
Gary Johnson
Physical and chemical data on sediments deposited in the Missouri and the Mississippi River flood plains during the July through August 1993 flood Physical and chemical data on sediments deposited in the Missouri and the Mississippi River flood plains during the July through August 1993 flood
Because sediments deposited by the 1993 floods on the Missouri and Mississippi rivers were thought to contain elevated concentrations of nutrients and trace elements, sediment deposits were sampled at 25 floodplain locations. The samples were analyzed for particle size, water content, volatile solids, nutrients, carbon, selected trace elements, pesticides, and semivolatile organic...
Authors
Gregg Schalk, Robert Holmes, Gary Johnson
Instruction manual for U.S. Geological Survey sediment observers Instruction manual for U.S. Geological Survey sediment observers
This instruction manual is intended for use by U.S. Geological Survey (USGS) Sediment Observers. An overview of the USGS Sediment Program is presented, and basic theory on sediment transport is explained. Step-by-step instructions on when and how to sample for sediment also are presented. USGS Sediment Observer safety issues are discussed and corrective actions are presented. An empty...
Authors
Gary Johnson
Application and limitations of dendrogeomorphic method to estimate sedimentation rate in the Kankakee River flood plain in Illinois Application and limitations of dendrogeomorphic method to estimate sedimentation rate in the Kankakee River flood plain in Illinois
No abstract available.
Authors
Gary Johnson
Dendrogeomorphic estimate of changes in sedimentation rate along the Kankakee River near Momence, Illinois Dendrogeomorphic estimate of changes in sedimentation rate along the Kankakee River near Momence, Illinois
Changes in sedimentation rates wee estimated using root-burial depth and tree-age data at six selected data-collection sites along the Kankakee River near Momence in Kankakee County, Illinois. Five sites were in backwater areas away from the river channel, and one site was on a natural levee near the channel. A summary of the dendrogeomorphic data at the six sites indicates that...
Authors
R.L. Phipps, G.P. Johnson, P. Terrio
Overview of South‐east Asia land cover using a NOAA AVHRR one kilometer composite Overview of South‐east Asia land cover using a NOAA AVHRR one kilometer composite
A cloud free AVHRR composite of South‐East Asia at one kilometer resolution has been produced from 38 selected daily NOAA‐11 AVHRR images. Geometric accuracy of about 1 pixel is achieved using a two‐step rectification algorithm (orbital model and transformation by ground control points). A spatial and spectral enhancement has been performed, the sea masked out and political boundaries...
Authors
Pierre Defourny, Udai Pradhan, Sritharan Vinay, Gary E. Johnson
The role of remotely sensed and other special data for predictive modeling: the Umatilla, Oregon example The role of remotely sensed and other special data for predictive modeling: the Umatilla, Oregon example
Landsat data and 1:24 000-scale aerial photographs were initially used to map the expansion of irrigation from 1973 to 1979 and to identify crops under irrigation in 1979. The crop data were then used with historical water requirement figures and digital topographic and hydrographic data to estimate water and power use for the 1979 irrigation season. The final project task involved...
Authors
Thomas R. Loveland, Gary E. Johnson
Science and Products
Filter Total Items: 29
The Great Flood of 1993 on the Upper Mississippi River—10 years later The Great Flood of 1993 on the Upper Mississippi River—10 years later
Ten years ago, the upper Mississippi River Basin in the Midwestern United States experienced the costliest flood in the history of the United States. The flood came to be known as “ The Great Flood of 1993.”
Authors
Gary Johnson, Robert Holmes, Loyd Waite
The history of dinosaur footprint discoveries in Wyoming with emphasis on the Bighorn Basin The history of dinosaur footprint discoveries in Wyoming with emphasis on the Bighorn Basin
Dinosaur traces are well known from the western United States in the Colorado Plateau region (Utah, Colorado, New Mexico, and Arizona). Utah contains the greatest abundance of known and documented dinosaur footprints and trackways. Far less well known, however, is the occurrence and distribution of dinosaur footprint-bearing horizons in Wyoming. Scientific studies over the past 10 years...
Authors
Erik Kvale, Debra Mickelson, Stephen Hasiotis, Gary Johnson
Monitoring and analysis of combined sewer overflows, Riverside and Evanston, Illinois, 1997-99 Monitoring and analysis of combined sewer overflows, Riverside and Evanston, Illinois, 1997-99
The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, collected and analyzed flow data in combined sewer systems in Riverside and Evanston, northeastern Illinois, from March 1997 to December 1999. Continuous 2- and 5-minute stage and velocity data were collected during surcharged and nonsurcharged conditions at 12 locations. Mass balances were calculated to...
Authors
Andrew Waite, Nancy Hornewer, Gary Johnson
Methodology, data collection, and data analysis for determination of water-mixing patterns induced by aerators and mixers Methodology, data collection, and data analysis for determination of water-mixing patterns induced by aerators and mixers
The U.S. Geological Survey collected and analyzed data to describe mixing patterns induced by aerators and mixers to aid in the calibration and verification of a three-dimensional hydrodynamic model. During September 1995, three-dimensional water-velocity profiles were collected during the operation of fine-bubble and coarse-bubble aerators in a test tank at the U.S. Army Corps of...
Authors
Gary Johnson, Nancy J. Hornewer, Dale Robertson, Darren Olson, Josh Gioja
Hydrology, water quality, and nutrient loads to Lake Catherine and Channel Lake, near Antioch, Lake County, Illinois Hydrology, water quality, and nutrient loads to Lake Catherine and Channel Lake, near Antioch, Lake County, Illinois
From April 21, 1998, through April 30, 1999, the U.S. Geological Survey, in cooperation with the Fox Waterway Agency, conducted an investigation designed to characterize the hydrology, water quality, hydrologic budget, sediment budget, and nutrient budget of Lake Catherine and Channel Lake, Lake County, Illinois. These lakes are the northernmost lakes of the Fox Chain of Lakes. Lake...
Authors
Robert Kay, Gary Johnson, David Schrader
Water sediment, and nutrient budgets, and bathymetric survey of Old and New Gillespie Lakes, Macoupin County, Illinois, May 1996-April 1997; with a discussion of lake-management practices Water sediment, and nutrient budgets, and bathymetric survey of Old and New Gillespie Lakes, Macoupin County, Illinois, May 1996-April 1997; with a discussion of lake-management practices
The Gillespie Lakes system serves as a drinking water source for the town of Gillespie, Illinois, and is a major recreational focus for the area. As part of an investigation of a concern that the lakes are being adversely affected by excessive sediment and nutrient in flows, this report presents hydrologic, sediment, and nutrient budgets for Old Gillespie Lake and New Gillespie Lake...
Authors
Gary Johnson
Physical and chemical data on sediments deposited in the Missouri and the Mississippi River flood plains during the July through August 1993 flood Physical and chemical data on sediments deposited in the Missouri and the Mississippi River flood plains during the July through August 1993 flood
Because sediments deposited by the 1993 floods on the Missouri and Mississippi rivers were thought to contain elevated concentrations of nutrients and trace elements, sediment deposits were sampled at 25 floodplain locations. The samples were analyzed for particle size, water content, volatile solids, nutrients, carbon, selected trace elements, pesticides, and semivolatile organic...
Authors
Gregg Schalk, Robert Holmes, Gary Johnson
Instruction manual for U.S. Geological Survey sediment observers Instruction manual for U.S. Geological Survey sediment observers
This instruction manual is intended for use by U.S. Geological Survey (USGS) Sediment Observers. An overview of the USGS Sediment Program is presented, and basic theory on sediment transport is explained. Step-by-step instructions on when and how to sample for sediment also are presented. USGS Sediment Observer safety issues are discussed and corrective actions are presented. An empty...
Authors
Gary Johnson
Application and limitations of dendrogeomorphic method to estimate sedimentation rate in the Kankakee River flood plain in Illinois Application and limitations of dendrogeomorphic method to estimate sedimentation rate in the Kankakee River flood plain in Illinois
No abstract available.
Authors
Gary Johnson
Dendrogeomorphic estimate of changes in sedimentation rate along the Kankakee River near Momence, Illinois Dendrogeomorphic estimate of changes in sedimentation rate along the Kankakee River near Momence, Illinois
Changes in sedimentation rates wee estimated using root-burial depth and tree-age data at six selected data-collection sites along the Kankakee River near Momence in Kankakee County, Illinois. Five sites were in backwater areas away from the river channel, and one site was on a natural levee near the channel. A summary of the dendrogeomorphic data at the six sites indicates that...
Authors
R.L. Phipps, G.P. Johnson, P. Terrio
Overview of South‐east Asia land cover using a NOAA AVHRR one kilometer composite Overview of South‐east Asia land cover using a NOAA AVHRR one kilometer composite
A cloud free AVHRR composite of South‐East Asia at one kilometer resolution has been produced from 38 selected daily NOAA‐11 AVHRR images. Geometric accuracy of about 1 pixel is achieved using a two‐step rectification algorithm (orbital model and transformation by ground control points). A spatial and spectral enhancement has been performed, the sea masked out and political boundaries...
Authors
Pierre Defourny, Udai Pradhan, Sritharan Vinay, Gary E. Johnson
The role of remotely sensed and other special data for predictive modeling: the Umatilla, Oregon example The role of remotely sensed and other special data for predictive modeling: the Umatilla, Oregon example
Landsat data and 1:24 000-scale aerial photographs were initially used to map the expansion of irrigation from 1973 to 1979 and to identify crops under irrigation in 1979. The crop data were then used with historical water requirement figures and digital topographic and hydrographic data to estimate water and power use for the 1979 irrigation season. The final project task involved...
Authors
Thomas R. Loveland, Gary E. Johnson