USGS Professional Pages
Research PhysicistContact Info
John Nimmo is a Research Physicist working toward establishment of a sound twenty-first century framework of water flow processes in soils and rocks. His specialty is the unsaturated zone, between the land surface and the water table. Applications of his work include aquifer recharge estimation, contaminant transport, ecohydrology, land-use evaluation, and climate-change. As Lead Scientist for Unsaturated Flow Processes, he supervises a research group at the USGS that pursues these objectives through field and lab experiments, mathematical modeling, and development of unsaturated-flow theory.
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PublicationsSee complete list in CV.
Perkins, Kimberlie S.; Nimmo, John R.; Medeiros, Arthur C., 2012. Effects of native forest restoration on soil hydraulic properties, Auwahi, Maui, Hawaiian Islands. American Geophysical Union , 4 p. [Link]
Nimmo, John R., 2012. Preferential flow occurs in unsaturated conditions. Wiley , 4 p. [Link]
Nimmo, John R., 2012. Response to Masciopinto's Comment on "Theory for source-responsive and free-surface film modeling of unsaturated flow". Soil Science Society of America , Soil Science Society of America [Link]
Mirus, Benjamin B.; Perkins, Kim S.; Nimmo, John R., 2011. Assessing controls on perched saturated zones beneath the Idaho Nuclear Technology and Engineering Center, Idaho. U.S. Geological Survey Scientific Investigations Report 2011-5222, vi, 20 p. [Link]
Perkins, K. S.; Nimmo, J. R.; Rose, C. E.; Coupe, R. H. , 2011. Field tracer investigation of unsaturated zone flow paths and mechanisms in agricultural soils of northwestern Mississippi, USA. ,
Ebel, Brian A.; Nimmo, John R., 2010. Hydraulic Property and Soil Textural Classification Measurements for Rainier Mesa, Nevada Test Site, Nevada. U.S. Geological Survey Open-File Report 2009-1264, iv, 17 p. [Link]
Ebel, Brian A.; Nimmo, John R., 2009. Estimation of Unsaturated Zone Traveltimes for Rainier Mesa and Shoshone Mountain, Nevada Test Site, Nevada, Using a Source-Responsive Preferential-Flow Model. U.S. Geological Survey Open-File Report 2009-1175, vi, 74 p. [Link]
Nimmo, J. R.; Perkins, K. S. , 2008. Effect of soil disturbance on recharging fluxes: Case study on the Snake River Plain, Idaho National Laboratory, USA. ,
Rousseau, Joseph P.; Landa, Edward R.; Nimmo, John R.; Cecil, L. DeWayne; Knobel, LeRoy L.; Glynn, Pierre D.; Kwicklis, Edward M.; Curtis, Gary P.; Stollenwerk, Kenneth G.; Anderson, Steven R.; Bartholomay, Roy C.; Bossong, Clifford R.; Orr, Brennon R., 2005. Review of the transport of selected radionuclides in the interim risk assessment for the Radioactive Waste Management Complex, Waste Area Group 7 Operable Unit 7-13/14, Idaho National Engineering and Environmental Laboratory, Idaho. Scientific Investigations Report 2005-5026, 283 p. in two volumes (211 p. in volume 1 and 72 p. in volume 2) [Link]
Heppner, Christopher S.; Nimmo, John R., 2005. A computer program for predicting recharge with a master recession curve. Scientific Investigations Report 2005-5172, 10 p. [Link]
Perkins, K. S.; Nimmo, J. R., 2000. Measurement of hydraulic properties of the B-C interbed and their influence on contaminant transport in the unsaturated zone at the Idaho National Engineering and Environmental Laboratory, Idaho. Water-Resources Investigations Report 2000-4073, 30 p.
Nimmo, J. R.; Shakofsky, S. M.; Kaminsky, J. F.; Lords, G. S., 1999. Laboratory and field hydrologic characterization of the shallow subsurface at Idaho National Engineering and Environmental Laboratory waste-disposal site. Water-Resources Investigations Report 99-4263, 31 p.
Perkins, K. S.; Nimmo, J. R.; Pittman, J. R. , 1998. Hydrologic and meteorological data for an unsaturated-zone study area near the Radioactive Waste Management Complex, Idaho National Engineering and Environmental Laboratory, Idaho, 1990-96. U.S. Dept. of the Interior, U.S. Geological Survey ; Information Services [distributor], Open-File Report 98-9, iv, 13 p. :ill., maps ;28 cm. +1 computer laser optical disc.
My Science Topics
My USGS Science Strategy AreasUnderstanding Ecosystems & Predicting Ecosystems Change
The Role of Environment and Wildlife in Human Health
Climate Variability & Change
A Water Census of the United States
Unsaturated Flow Processes
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Menlo Park, CA 94025
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