Kevin K Johnson
Kevin Johnson is a Hydrologist with the USGS, Central Midwest Water Science Center in Urbana, Illinois.
Education and Certifications
M.S. Geography, University of Illinois, Urbana-Champaign, IL 2017
B.S. Geology, University of Utah, Salt Lake City, UT, 1997
Science and Products
Filter Total Items: 33
Control-structure ratings on the Chicago Sanitary and Ship Canal near Lockport, Illinois Control-structure ratings on the Chicago Sanitary and Ship Canal near Lockport, Illinois
The U.S. Army Corps of Engineers and the Metropolitan Water Reclamation District of Greater Chicago regulate flows through control structures along the Lake Michigan lakefront and the Chicago Sanitary and Ship Canal (CSSC) for Lake Michigan diversion accounting, flood control, sanitary, and navigation purposes. This report documents the measurement and computation of flow through the...
Authors
Timothy D. Straub, Kevin K. Johnson, Jon Hortness, James J. Duncker
Field information links permafrost carbon to physical vulnerabilities of thawing Field information links permafrost carbon to physical vulnerabilities of thawing
Deep soil profiles containing permafrost (Gelisols) were characterized for organic carbon (C) and total nitrogen (N) stocks to 3m depths. Using the Community Climate System Model (CCSM4) we calculate cumulative probability functions (PDFs) for active layer depths under current and future climates. The difference in PDFs over time was multiplied by C and N contents of soil horizons in...
Authors
Jennifer W. Harden, Charles Koven, Chien-Lu Ping, Gustaf Hugelius, A. David McGuire, P. Camill, Torre Jorgenson, Peter Kuhry, Gary Michaelson, Jonathan A. O’Donnell, Edward A.G. Schuur, Charles Tamocai, Kevin Johnson, G. Grosse
Comparison of index velocity measurements made with a horizontal acoustic Doppler current profiler Comparison of index velocity measurements made with a horizontal acoustic Doppler current profiler
The State of Illinois' annual withdrawal from Lake Michigan is limited by a U.S. Supreme Court decree, and the U.S. Geological Survey (USGS) is responsible for monitoring flows in the Chicago Sanitary and Ship Canal (CSSC) near Lemont, Illinois as a part of the Lake Michigan Diversion Accounting overseen by the U.S. Army Corps of Engineers, Chicago District. Every 5 years, a technical...
Authors
P. Ryan Jackson, Kevin K. Johnson, James J. Duncker
The role of the U.S. Geological Survey in Lake Michigan Diversion Accounting in Illinois, 1984-2010 The role of the U.S. Geological Survey in Lake Michigan Diversion Accounting in Illinois, 1984-2010
The State of Illinois' annual withdrawl from Lake Michigan is limited by a U.S. Supreme Court decree. The U.S. Geological Survey (USGS) is responsible for monitoring flows in the Chicago area waterway system (CAWS) as part of the Lake Michigan Diversion Accounting (LMDA) overseen by the U.S. Army Corps of Engineers, Chicago District. Every five years, the USGS streamgage practices in the...
Authors
Kevin K. Johnson, James J. Duncker, P. Ryan Jackson
Circum-Arctic mapping project: New magnetic and gravity anomaly maps of the Arctic Circum-Arctic mapping project: New magnetic and gravity anomaly maps of the Arctic
New Circum-Arctic maps of magnetic and gravity anomalies have been produced by merging regional gridded data. Satellite magnetic and gravity data were used for quality control of the long wavelengths of the new compilations. The new Circum-Arctic digital compilations of magnetic, gravity and some of their derivatives have been analyzed together with other freely available regional and...
Authors
C. Gaina, S.C. Werner, R. Saltus, S. Maus, S. Aaro, D. Damaske, R. Forsberg, V. Glebovsky, Kevin K. Johnson, J. Jonberger, T. Koren, J. Korhonen, T. Litvinova, G. Oakey, O. Olesen, O. Petrov, M. Pilkington, T. Rasmussen, B. Schreckenberger, M. Smelror
Water chemistry and its effects on the physiology and survival of Atlantic salmon Salmo salar smolts Water chemistry and its effects on the physiology and survival of Atlantic salmon Salmo salar smolts
The physiological effects of episodic pH fluctuations on Atlantic salmon Salmo salar smolts in eastern Maine, U.S.A., were investigated. During this study, S. salar smolts were exposed to ambient stream‐water chemistry conditions at nine sites in four catchments for 3 and 6 day intervals during the spring S. salar smolt migration period. Plasma chloride, plasma glucose, gill aluminium...
Authors
T. Liebich, S. D. McCormick, D. Kircheis, Kevin Johnson, R. Regal, T. Hrabik
Science and Products
Filter Total Items: 33
Control-structure ratings on the Chicago Sanitary and Ship Canal near Lockport, Illinois Control-structure ratings on the Chicago Sanitary and Ship Canal near Lockport, Illinois
The U.S. Army Corps of Engineers and the Metropolitan Water Reclamation District of Greater Chicago regulate flows through control structures along the Lake Michigan lakefront and the Chicago Sanitary and Ship Canal (CSSC) for Lake Michigan diversion accounting, flood control, sanitary, and navigation purposes. This report documents the measurement and computation of flow through the...
Authors
Timothy D. Straub, Kevin K. Johnson, Jon Hortness, James J. Duncker
Field information links permafrost carbon to physical vulnerabilities of thawing Field information links permafrost carbon to physical vulnerabilities of thawing
Deep soil profiles containing permafrost (Gelisols) were characterized for organic carbon (C) and total nitrogen (N) stocks to 3m depths. Using the Community Climate System Model (CCSM4) we calculate cumulative probability functions (PDFs) for active layer depths under current and future climates. The difference in PDFs over time was multiplied by C and N contents of soil horizons in...
Authors
Jennifer W. Harden, Charles Koven, Chien-Lu Ping, Gustaf Hugelius, A. David McGuire, P. Camill, Torre Jorgenson, Peter Kuhry, Gary Michaelson, Jonathan A. O’Donnell, Edward A.G. Schuur, Charles Tamocai, Kevin Johnson, G. Grosse
Comparison of index velocity measurements made with a horizontal acoustic Doppler current profiler Comparison of index velocity measurements made with a horizontal acoustic Doppler current profiler
The State of Illinois' annual withdrawal from Lake Michigan is limited by a U.S. Supreme Court decree, and the U.S. Geological Survey (USGS) is responsible for monitoring flows in the Chicago Sanitary and Ship Canal (CSSC) near Lemont, Illinois as a part of the Lake Michigan Diversion Accounting overseen by the U.S. Army Corps of Engineers, Chicago District. Every 5 years, a technical...
Authors
P. Ryan Jackson, Kevin K. Johnson, James J. Duncker
The role of the U.S. Geological Survey in Lake Michigan Diversion Accounting in Illinois, 1984-2010 The role of the U.S. Geological Survey in Lake Michigan Diversion Accounting in Illinois, 1984-2010
The State of Illinois' annual withdrawl from Lake Michigan is limited by a U.S. Supreme Court decree. The U.S. Geological Survey (USGS) is responsible for monitoring flows in the Chicago area waterway system (CAWS) as part of the Lake Michigan Diversion Accounting (LMDA) overseen by the U.S. Army Corps of Engineers, Chicago District. Every five years, the USGS streamgage practices in the...
Authors
Kevin K. Johnson, James J. Duncker, P. Ryan Jackson
Circum-Arctic mapping project: New magnetic and gravity anomaly maps of the Arctic Circum-Arctic mapping project: New magnetic and gravity anomaly maps of the Arctic
New Circum-Arctic maps of magnetic and gravity anomalies have been produced by merging regional gridded data. Satellite magnetic and gravity data were used for quality control of the long wavelengths of the new compilations. The new Circum-Arctic digital compilations of magnetic, gravity and some of their derivatives have been analyzed together with other freely available regional and...
Authors
C. Gaina, S.C. Werner, R. Saltus, S. Maus, S. Aaro, D. Damaske, R. Forsberg, V. Glebovsky, Kevin K. Johnson, J. Jonberger, T. Koren, J. Korhonen, T. Litvinova, G. Oakey, O. Olesen, O. Petrov, M. Pilkington, T. Rasmussen, B. Schreckenberger, M. Smelror
Water chemistry and its effects on the physiology and survival of Atlantic salmon Salmo salar smolts Water chemistry and its effects on the physiology and survival of Atlantic salmon Salmo salar smolts
The physiological effects of episodic pH fluctuations on Atlantic salmon Salmo salar smolts in eastern Maine, U.S.A., were investigated. During this study, S. salar smolts were exposed to ambient stream‐water chemistry conditions at nine sites in four catchments for 3 and 6 day intervals during the spring S. salar smolt migration period. Plasma chloride, plasma glucose, gill aluminium...
Authors
T. Liebich, S. D. McCormick, D. Kircheis, Kevin Johnson, R. Regal, T. Hrabik