Abstract and Presentations
- Nimmo, J.R., 2016, A process-based full-range model of soil water retention, Annual Meeting, Soil Science Society of America.
- Nimmo, J.R., 2016, Formulating physical processes in a full-range model of soil water retention, In AGU Fall Meeting Abstracts.
- De Carlo, L, Nimmo, J.R., Masciale, R, Turturro, A.C., Perkins, K.S., and Caputo, M.C., 2016, Aquifer recharge estimation in unsaturated porous rock by using Darcian and geophysical methods, In AGU Fall Meeting Abstracts.
- Nimmo, J.R., Turturro, A.C., Ma, B., Caputo, M.C., and Perkins, K.S., 2016, Does flowpath alteration by centrifugal force cause deviation from Darcy’s Law?, In AGU Fall Meeting Abstracts.
- Perkins, K.S., Nimmo, J.R., Creasy, K, and Mirus, B.B., 2016, Preferential and diffuse high-volume flow through and interbedded fractured-rock unsaturated zone, USGS National Groundwater Meeting.
- Perkins, K.S., Stock, J.D., and Nimmo, J.R., 2016, An Evaluation of Vegetation Influences on Infiltration in Hawaiian Soils, In AGU Fall Meeting Abstracts.
- Nimmo, J.R. and Perkins, K.S., 2015, December. New Hydrologic Insights to Advance Geophysical Investigation of the Unsaturated Zone. In AGU Fall Meeting Abstracts.
- Nimmo, J.R. and Perkins, K.S., 2015, December. New Hydrologic Insights to Advance Geophysical Investigation of the Unsaturated Zone. In AGU Fall Meeting Abstracts.
- Nimmo, J.R., Perkins, K.S. and Gaten-Slahor, L., 2015, December. Partially-Filled Macropores in Swelling and Nonswelling Media: Flow Modes Requiring Supplementation of Darcy's Law. In AGU Fall Meeting Abstracts.
- Perkins, K.S., Nimmo, J.R., Creasey, K.M. and Mirus, B.B., 2015, December. Preferential and diffuse high-volume flow through an interbedded fractured-rock unsaturated zone. In AGU Fall Meeting Abstracts.
- Creasey, K. M., and J. R. Nimmo. "Estimation of Hydraulic Properties Influencing Recharge and Contaminant Transport through Complex Vadose Zones by Analyzing Perched Water Data from the 1994 Large-Scale Infiltration Test at the Idaho National Laboratory." AGU Fall Meeting Abstracts. Vol. 1. 2014.
- Manna, F., Nimmo, J.R., De Vita, P. and Allocca, V., 2014, December. Assessment of groundwater recharge in an ash-fall mantled karst aquifer of southern Italy. In AGU Fall Meeting Abstracts (Vol. 1, p. 0957).
- Perkins, K.S., 2014, December. Hydrologic Changes Attributed to a Century Old Railroad Grade in the Mojave Desert, CA, USA. In AGU Fall Meeting Abstracts (Vol. 1, p. 0701).
- Healy, R.W., and Nimmo, J.R., 2013, A Coupled Source-Response/Richards-Equation Model for Simulating Infiltration in the Presence of Preferential Flow Paths: Geological Society of America Annual Meeting, 27-30 October 2013, v. 45, Paper No. 102-3.
- Nimmo, J.R. and Perkins, K.S., 2013, December. Do Karstic Unsaturated Zones Have the Fastest Preferential Flow?. In AGU Fall Meeting Abstracts.
- Perkins, K.S., Nimmo, J.R., Medeiros, A., Szutu, D. and von Allmen, E., 2013, December. Assessing Effects of Native Reforestation on Soil Moisture Dynamics During Artificial and Natural Rainfall. In AGU Fall Meeting Abstracts (Vol. 1, p. 1177).
- Malek-Mohammadi, S., and Nimmo, J.R., 2012, Preferential Flow in Unsaturated Fissures of English Chalk: American Geophysical Union Fall Meeting, San Francisco, CA, December 3-7, 2012, Eos Transactions Abstract H11B-1167.
- Mirus, B., and Nimmo, J., 2012, A Simple Approach for Simulating Rapid Groundwater Recharge via Unsaturated-Zone Preferential Flow: USGS National Groundwater Workshop, Lakewood, Colorado, August 6-10, 2012, Abstract 81.
- Nimmo, J., Perkins, K., Mitchell, L., and Mirus, B., 2012, Discrete-Storm Water-Table Fluctuation Method to Estimate Episodic Recharge and Climate Sensitivity: USGS National Groundwater Workshop, Lakewood, Colorado, August 6-10, 2012, Abstract 84.
- Nimmo, J.R., and Malek-Mohammadi, S., 2012, Quantifying Preferential Flow and Seasonal Storage in an Unsaturated Fracture-Facial Domain: American Geophysical Union Fall Meeting, San Francisco, CA, December 3-7, 2012, Eos Transactions Abstract H14A-05.
- Nimmo, J.R., Mirus, B.B., Ebel, B.A., and Perkins, K.S., 2012, Estimating unsaturated flow with a scarcity of hard data--Case studies at Rainier Mesa: 2012 Devils Hole Workshop, Death Valley National Park, CA, May 2-4, 2012.
- Nimmo, J.R., and Mitchell, L., 2012, Source-Responsive Model to Predict Soil-Water Response to Preferential Flow during Infiltration: Hydropedology 2012, Leipzig, Germany, 22-27 July 2012.
- Nimmo, J.R., Perkins, K.S., Mitchell, L., and Mirus, B.B., 2012, Source-Responsive Representation of Nonequilibrium Preferential Flow Processes: Soil Science Society of America Annual Meeting, Cincinnati, OH, October 21-24, 2012, Abstract 263-5.
- Nimmo, J.R., 2013, High Input-Sensitivity of Noncapillary Flow in the Unsaturated Zone: Geological Society of America Annual Meeting, 27-30 October 2013, v. 45, Paper No. 102-2.
- Nimmo, J.R., 2013, Preferential Flow Characterization in a Geologically Complex Unsaturated Zone, Idaho National Laboratory: Geological Society of America Annual Meeting, 27-30 October 2013, v. 45, Paper No. 201-7.
- Nimmo, J.R., 2013, Preferential Flow and Contaminant Transport through the Unsaturated Zone—Faster Can Mean Simpler Stanford EFMH Colloquium, February 11, 2013.
- Nimmo, J.R., 2013, Aquifer recharge and contamination influenced by preferential flow—Predicting how fast, how much Unsaturated Zone Interest Group Webinar, 13 September 2013.
- Nimmo, J.R., 2013, Untapped Opportunities--Soil Science and Hydrology: Soil Science Society of America Annual Meeting, November 3-6, 2013, 33-1.
- Nimmo, J.R., Perkins, K.S., Medeiros, A.C., Szutu, D.J., and Von Allmen, E., 2013, Native Forest Restoration Alters Soil Characteristics for Improved Plant-Water Availability: Soil Science Society of America Annual Meeting, November 3-6, 2013, 289-15.
- Nimmo, J.R., Perkins, K.S., and Scott, H., 2013, Do Karstic Unsaturated Zones Have the Fastest Preferential Flow?: American Geophysical Union Fall Meeting, 9-13 December 2013, Eos Transactions Abstract H11I-1262.
- Perkins, K., Nimmo, J., and Medeiros, A., 2012, Effects Of Native Forest Restoration On Soil Hydraulic Properties, Auwahi, Maui: USGS National Groundwater Workshop, Lakewood, Colorado, August 6-10, 2012, Abstract 99.
- Perkins, K., Nimmo, J.R., Smith, E.A., and Rosenbom, A.E., 2012, A Simple Approach for Modeling Preferential Flow in Agricultural Settings Using Water Table Fluctuations: SSSA Annual Meeting, Cincinnati, OH, October 21-24, 2012, Abstract 381-20.
- Perkins, K.S., Nimmo, J.R., and Medeiros, A., 2012, Effects of Native Forest Restoration on Soil Hydraulic Properties, Auwahi, Maui: American Geophysical Union Fall Meeting, San Francisco, CA, December 3-7, 2012, Eos Transactions Abstract H51C-1364.
- Perkins, K.S., Nimmo, J.R., Medeiros, A., Szutu, D., and Von Allmen, E., 2013, Assessing Effects of Native Reforestation on Soil Moisture Dynamics During Artificial and Natural Rainfall: American Geophysical Union Fall Meeting, 9-13 December 2013, Eos Transactions Abstract H11D-1177.
- Perkins, K.S., Nimmo, J.R., Medeiros, A.C., Szutu, D.J., and Von Allmen, E., 2013, Assessing Effects of Native Reforestation on Soil Moisture Dynamics and Potential Aquifer Recharge, Auwahi, Maui: Geological Society of America Annual Meeting, 27-30 October 2013, v. 45, Paper No. 168-4.
- Horowitz, C., J.R. Nimmo, and L. Mitchell, 2011, Use of the water-table fluctuation method to identify and characterize discrete episodes of positive and zero recharge, Eos Transactions American Geophysical Union, San Francisco Fall Meeting Supplement, Abstract H53A-1387.
- Mirus, B.B., Perkins, K.P., and Nimmo, J.R., 2011, Balancing practicality and hydrologic realism: Insights from applications of a parsimonious model of unsaturated zone preferential flow, Eos Transactions American Geophysical Union, San Francisco Fall Meeting Supplement, Abstract H33H-1422.
- Mirus, B.B., Perkins, K.S., Nimmo, J.R., and Loague, K., 2011, The Influence of Scale and Structure on Soil-Hydraulic Property Estimates: Implications for Modeling Surface and near-Surface Hydrology, SSSA Annual Meeting, San Antonio, TX, SSSA-342-7.
- Mirus, B.B., Nimmo, J.R., and Loague, K., 2011, The role of unsaturated hydraulic-property estimation in modeling coupled surface-subsurface flow processes. EGU General Assembly, Vienna, Austria, EGU2011-5479.
- Mirus, B.B., Perkins, K.P., and Nimmo, J.R., 2011, A source-responsive approach for modeling rapid groundwater recharge via unsaturated-zone preferential flow. EGU General Assembly, Vienna, Austria, EGU2011-5451.
- Mitchell, L., and Nimmo, J.R., 2011, An Active Area Model of Rapid Infiltration Response at Substantial Depth in the Unsaturated Zone, Eos Transactions American Geophysical Union, San Francisco Fall Meeting Supplement, Abstract H31D-1200.
- Nimmo, J.R., 2011, Source-Responsive Modeling of Preferential and Matrix Flow During Infiltration, 2011 Annual meeting, San Antonio, TX, Soil Science Society of America, Abstract 244-2.
- Nimmo, J.R., K.S. Perkins, and L. Mitchell, 2011, Source-Responsive Prediction of Preferential Transport in Response to Infiltration, Eos Transactions American Geophysical Union, San Francisco Fall Meeting Supplement, Abstract H53H-1503.
- Perkins, K.S., Bedford, D, Miller, D., Sandquist, D., and Horowitz, C., 2011, Electrical imaging of hydrologic changes in an anthropogenically modified arid environment, Eos Transactions American Geophysical Union, San Francisco Fall Meeting Supplement, Abstract B21G-0345.
- Perkins, K.S., Bedford, D, Miller, D., Sandquist, D., and Horowitz, C., 2011, Electrical imaging of hydrologic changes in an anthropogenically modified arid environment, USGS 2009 Symposium on NRP Science, December 11, 2011.
- Perkins, K.S., Smith, E.A., Nimmo, J.R., and Mirus. B.B., 2011, Modeling preferential flow in agricultural soils using a source-responsive approach, 2011 Annual meeting, San Antonio, TX, Soil Science Society of America, Abstract 117-28.
- Cristea, NC, SK Stephanie, BB Mirus, K Loague, SJ Burges. 2010. Effects of soil parameterization on distributed hydrologic response: Testing a distributed hydrologic model using a hypothetical reality dataset. Eos Transactions American Geophysical Union, San Francisco Fall Meeting Supplement, Abstract H41F-1131.
- Mirus, B.B., K.S. Perkins, and J.R. Nimmo, 2010, Assessing preferential fluxes in deep vadose zones using a source-responsive modeling approach, Eos Transactions American Geophysical Union, San Francisco Fall Meeting Supplement, Abstract H41A-1066.
- Mirus, B.B., K.S. Perkins, and J.R. Nimmo, 2010, A source-responsive modeling approach for examining anthropogenically augmented recharge and accelerated contaminant transport at the Idaho National Laboratory (INL), National Annual Meeting of the Geological Society of America, Denver, CO: GSA Abstracts with Programs 42(5).
- Mirus, B.B., B.A. Ebel, C.S. Heppner, and K. Loague, 2010, Assessing the detail needed to capture hydrologic response with physics-based simulation, Hydrology in the 21st Century: Links to the Past, and a Vision for the Future, Seattle, WA, March 24-26.
- Nimmo, J.R., 2010, Testing the adequacy of Richards' equation--soils of different structure, 1st International Conference and Exploratory Workshop on Soil Architecture and Physico-Chemical Functions "CESAR", Foulum, Denmark.
- Nimmo, JR, K Perkins, BA Ebel, BB Mirus. 2010. Nonlinear soil-water interactions: Climate-change impacts for aquifer recharge, ecohydrology, and natural hazards. USGS Climate Change Science: Understanding the Past, Informing Decisions for the Future, Denver, CO, March 9-11.
- Perkins, K.S., 2010, Unsaturated zone flow: challenges and progress, San Francisco State University Department of Geosciences Distinguished Lecture Series, Nov. 2, 2010.
- Ebel, B.A., and Nimmo, J.R., 2009, Simulated damping of periodic fluctuations in net infiltration within a thick unsaturated zone in Southern Nevada: Implications for radionuclide transport, Eos Transactions American Geophysical Union, v. 90, no. 52, Fall Meeting Supplement, Abstract H31B-0779.
- Ebel, B.A., and Nimmo, J.R., 2009, Simulated damping of periodic fluctuations in net infiltration within a thick unsaturated zone in Southern Nevada: Implications for radionuclide transport, USGS 2009 Symposium on NRP Science, December 11, 2009.
- Ebel, B.A., and Nimmo, J.R., 2009, Damping of periodic variations in the unsaturated zone: Effects on preferential flow initiation. 2009 Annual meeting, Soil Science Society of America, Abstract 312-12.
- Nimmo, J.R., 2009, Unsaturated Flow Modeling with Source-Responsive Film Flow in the Preferential Domain: European Geophysical Union Fall Meeting.
- Nimmo, J.R., 2009, Pattern-Based Application of ERT to Soil Water for Plant Use (Invited). Eos Transactions American Geophysical Union, v. 90, no. 52, Fall Meeting Supplement, Abstract H41H-02.
- Nimmo, J.R., 2009, Source-Responsive Model for Unsaturated Flow Under High-Flux or Rapid-Change Conditions. Eos Transactions American Geophysical Union, v. 90, no. 52, Fall Meeting Supplement, Abstract H43E-1073.
- Nimmo, J.R., 2009, Source-Responsive Model for Unsaturated Flow Under High-Flux or Rapid-Change Conditions. USGS 2009 Symposium on NRP Science, December 11, 2009.
- Nimmo, J.R., Ebel, B.A., and Perkins, K.S., 2009, Unsaturated-Zone Water Dynamics From Combined Darcian and Free-Surface Film Flow. 2009 Annual meeting, Soil Science Society of America, Abstract 554-22.
- Perkins, K.S., Nimmo, J.R., Rose, C.E., and Coupe, R.H., 2009, Field Evaluation of Preferential Flow in Agricultural Soil of the Mississippi Delta. Annual meeting, Soil Science Society of America, Abstract 87-3.
- Perkins, K.S., Nimmo, J.R., Rose, C.E., and Coupe, R.H., 2009, Field Evaluation of Preferential Flow in Agricultural Soil of the Mississippi Delta. Eos Transactions American Geophysical Union, v. 90, no. 52, Fall Meeting Supplement, Abstract H31C-0800.
- Perkins, K.S., Nimmo, J.R., Rose, C.E., and Coupe, R.H., 2009, Field Evaluation of Preferential Flow in Agricultural Soil of the Mississippi Delta. USGS 2009 Symposium on NRP Science, December 11, 2009.
- Ebel, B.A., and Nimmo, J.R., 2008, Simple estimation of minimum unsaturated contaminant travel times at Rainier Mesa and Shoshone Mountain, Nevada Test Site: Eos Transactions American Geophysical Union, v. 89, no. 53, Fall Meeting Supplement, Abstract H13A-0902.
- Ebel, B.A., and Nimmo, J.R., 2008, Contaminant travel time estimates through a thick unsaturated zone at Rainier Mesa and Shoshone Mountain, Nevada, Abstracts with Programs, Paper no. 75-8, Geological Society of America, p. 55.
- Ebel, B.A., and Nimmo, J.R., 2008, Radionuclide travel time estimates through unsaturated rock at Rainier Mesa and Shoshone Mountain within the Nevada Test Site, USGS National Groundwater Workshop: Lakewood, CO.
- Nimmo, J.R., 2008, Subsurface Initiation of Film Flow in Rock Fractures and Soil Macropores, Abstracts with Programs, Geological Society of America, p. 55.
- Nimmo, J.R., 2008, Film flow in macro- and micropores: how much unsaturated-zone hydrology can it explain?: Eos Transactions American Geophysical Union, v. 89, no. 53, Fall Meeting Supplement, Abstract H51I-0984.
- Nimmo, J.R., and Perkins, K.S., 208, Techniques to Answer Hydrologic Questions of the Unsaturated Zone: Borrow, Adapt, Steal, and Dream, Abstracts with Programs, Geological Society of America, p. 55.
- Nimmo, J.R., Perkins, K.S., Schmidt, K.M., Miller, D.M., Stock, J.D., and Singha, K., 2008, Indexing of soil water availability for diverse water-limited ecosystems: First Annual International Hydropedology Meeting, Penn State University.
- Nimmo, J.R., Perkins, K.S., Schmidt, K.M., Miller, D.M., Stock, J.D., and Singha, K., 2008, Meter-scale lateral heterogeneity of soil hydraulic properties and ecohydrologic function in arid environments: Nevada Water Resources Association 2008 Recharge Symposium.
- Nimmo, J.R., Perkins, K.S., Schmidt, K.M., Miller, D.M., Stock, J.D., and Singha, K., 2008, Meter-scale lateral heterogeneity of soil hydraulic properties: Ecohydrologic function in arid environments: Ecological Society of America Meeting.
- Perkins, K.S., Nimmo, J.R., Coupe, R.H., Rose, C.E., and Manning, M.A., 2008, Field evaluation of preferential flow in agricultural soils of the Mississippi Delta, Abstracts with Programs, Geological Society of America, p. 55.
- Perkins, K.S., Nimmo, J.R., Coupe, R.H., Rose, C.E., and Manning, M.A., 2008, Field evaluation of travel times and flow mechanisms in the Mississippi Delta vadose zone using tracers: Eos Transactions American Geophysical Union, v. 89, no. 53, Fall Meeting Supplement, Abstract H21B-0825.
- Caputo, M.C., Carlo, L.D., Masciopinto, C., and Nimmo, J.R., 2007, Integration of electric resistivity profile and infiltrometer measurements to calibrate a numerical model of vertical flow in fractured and karstic limestone.: Eos Transactions American Geophysical Union, v. 88, no. 52, Fall Meeting Supplement, Abstract H41H-08.
- Caputo, M.C., Carlo, L.D., Masciopinto, C., and Nimmo, J.R., 2007, Evaluation of vertical flow in fractured and karstic subsoil of Altamura (Southern Italy) using field infiltrometer measurements: Unsaturated Zone Interest Group Meeting, Los Alamos, New Mexico.
- Nimmo, J.R., 2007, A new method for estimation of fluxes during preferential flow: Unsaturated Zone Interest Group Meeting, Los Alamos, New Mexico.
- Nimmo, J.R., 2007, Estimation of fluxes in preferential flow with an adapted speed-of-transport model: 2007 Annual meeting, Soil Science Society of America.
- Nimmo, J.R., 2007, Soils in the Mojave Desert: Field experiments to investigate hydraulic properties in relation to geomorphology: SJSU Geology Club Presentation.
- Nimmo, J.R., 2007, Augmentation of the Darcy-Buckingham-Richards formulation to account for fast response to infiltration of soil moisture at depth: Eos Transactions American Geophysical Union, v. 88, no. 52, Fall Meeting Supplement, Abstract H53H-08.
- Perkins, K.S., 2007, Property-Transfer Modeling to Estimate Unsaturated Hydraulic Conductivity of Deep Sediments at the Idaho National Laboratory, Idaho: Unsaturated Zone Interest Group Meeting, Los Alamos, New Mexico.
- Perkins, K.S., Nimmo, J.R., Mirus, B.B., Schmidt, K.M., Miller, D.M., Stock, J.D., and Singha, K., 2007, Hydraulic Properties of Mojave Desert Soils: Field Measurements and Modeling Results: Unsaturated Zone Interest Group Meeting, Los Alamos, New Mexico.
- Perkins, K.S., Nimmo, J.R., Coupe, R.H., Rose, C.E., and Manning, M.A., 2007, Potential for recharge in agricultural soils of the Mississippi Delta: Eos Transactions American Geophysical Union, v. 88, no. 52, Fall Meeting Supplement, Abstract H53F-1481.
- Miller, D., and Nimmo, J., 2006, The Mojave National Preserve--Geology and Water Shape Desert Plant Communities: Public Lecture, USGS, Menlo Park, December 14, 2006.
- Mirus, B.B., Nimmo, J.R., Perkins, K.S., and Singha, K., 2006, Representing the effects of lateral spreading during ponded infiltration--an inverse modeling approach: Eos Transactions American Geophysical Union, v. 87, no. 52, Fall Meeting Supplement, Abstract H31B-1423.
- Nimmo, J.R., 2006, Combining Subsurface Probes and Tomography in Field Infiltration Tests for Hydraulic Properties of Mojave Desert Soils: University of Córdoba, Spain, May 2, 2006.
- Nimmo, J.R., 2006, The Concept of Potential in Unsaturated Flow--Buckingham's Genius and Legacy: Eos Transactions American Geophysical Union, v. 87, no. 52, Fall Meeting Supplement, Abstract H54A-02.
- Nimmo, J.R., and Perkins, K.S., 2006, Effect of soil disturbance on aquifer recharge--Case study on the Snake River Plain, Idaho National Laboratory, USA [abs.], Abstracts, 34th Congress, Beijing, October 9-13, 2006, International Association of Hydrogeologists, p. 137-138.
- Nimmo, J.R., Herkelrath, W.N., and Laguna Luna, A.M., 2006, General theoretical framework for estimating soil water retention from textural data [abs.], World Congress of Soil Science, 18th, Philadelphia, PA, International Union of Soil Science.
- Nimmo, J.R., Perkins, K.S., Mirus, B.B., Schmidt, K.M., Miller, D.M., Stock, J.D., and Singha, K., 2006, Variation of Desert Soil Hydraulic Properties with Pedogenic Maturity [abs.]: Eos Transactions American Geophysical Union, v. 87, no. 52, Fall Meeting Supplement, Abstract H11G-07.
- Singha, K., Mirus, B.B., Nimmo, J.R., and Perkins, K.S., 2006, Electrical Resistivity Imaging and Quantification of Water Content Distribution during Infiltration and Redistribution in Soils: Eos Transactions American Geophysical Union, v. 87, no. 52, Fall Meeting Supplement, Abstract H31B-1416.
- Nimmo, J.R., 2005, Three Decades of Field Experiments Show Minimal Variability in Maximum Preferential Flow Speed [abs]: Eos, Transactions, American Geophysical Union, vol.86, no.52, Abstract H11H-04. Presented.
- Nimmo, J.R., Perkins, K.S., Winfield, K.A., Schmidt, K.M., Miller, D.M., Stock, J.D., and Singha, K., 2005, Field-Measured Infiltration Properties of Mojave Desert Soils with Varying Degrees of Pedogenesis: Annual meeting, Soil Science Society of America, Abstract 266-1. Presented
- Perkins, K.S., Nimmo, J.R., Winfield, K.A., Schmidt, K.S., Miller, D.M., and Stock, J.D., 2005, Field-measured infiltration properties of Mojave Desert soils [abs]: Eos, Transactions, American Geophysical Union, vol.86, no.52, Abstract H21E-1394. Presented.
- Nimmo, J.R., Perkins, K.S., and Winfield, K.A., 2004, Unsaturated-zone case study at the Idaho National Engineering and Environmental Laboratory--Can Darcian hydraulic properties predict contaminant migration?, Denver Annual Meeting, Geological Society of America. Invited presentation.
- Caputo, M. C. and Nimmo, J.R., 2003, Unsaturated Hydraulic Characterization of Carbonatic Rock in the Laboratory [abs]: Seattle Annual Meeting, Geological Society of America. Presented.
- Nimmo, J. R., 2003, How fast does water flow in a macropore? Evidence from field and lab experiments: Ninth Biennial Unsaturated-Zone Interest Group Meeting, U.S. Geological Survey, Richland, Washington, October 8-10.
- Nimmo, J. R., 2003, ¿Con qué rapidez fluye el agua en un macroporo? -- evidencia en experimentos de campo y laboratorio: Jornadas de Investigación en la Zona No Saturada del Suelo ZNS '03, Valladolid, Spain.
- Nimmo, J. R. and Caputo, M.C., 2003, Centrifugally driven flow in diverse porous media over wide-ranging moisture conditions [abs]: Eos, Transactions, American Geophysical Union, vol. 84, no. 46, Abstract H22A-0902, p. F635-F636. Presented
- Heppner, C. and Nimmo, J.R., 2003, Estimating recharge using rapid, wide-ranging water table fluctuations in a fractured rock setting: Ninth Biennial Unsaturated-Zone Interest Group Meeting, U.S. Geological Survey, Richland, Washington, October 8-10.
- Perkins, K. S., 2003, Comparison of aquifer recharge estimates based on measured and estimated hydraulic properties [abs]: Eos, Transactions, American Geophysical Union, vol. 84, no. 46, Abstract H32A-0533, p. F675. Presented.
- Perkins, K. S., 2003, Comparison of recharge estimates based on measured and predicted hydraulic properties and water table fluctuations: Ninth Biennial Unsaturated-Zone Interest Group Meeting, U.S. Geological Survey, Richland, Washington, October 8-10. Presented.
- Winfield, K. A. and Nimmo, J.R., 2003, A statistical model for predicting the unsaturated hydraulic properties of deep sediments at the Idaho National Engineering and Environmental Laboratory [abs]: Eos, Transactions, American Geophysical Union vol. 84, no. 46, Abstract H32A-0530, p. F675. Presented.
- Winfield, K. A. and Nimmo, J.R., 2003, A statistical model for predicting unsaturated hydraulic properties of deep sediments at the Idaho National Engineering and Environmental Laboratory: Ninth Biennial Unsaturated-Zone Interest Group Meeting, U.S. Geological Survey, Richland, Washington, October 8-10. Presented.
- Nimmo, J. R., 2002, Unsaturated Flow Prediction in the United States--Measurements and Models of Minimal Complexity: Proceedings of Workshop on Strategies for Hydrogeologic Studies in the 21st Century, November 17-20, 2002. Y. Wang. Wuhan, China. Presented.
- Nimmo, J.R., 2002, What Measurable Properties Can Predict Preferential Flow?: 17th World Congress of Soil Science, August 14-21, Bangkok, International Union of Soil Science. Presented.
- Nimmo, J.R., 2002, Meter-to-Kilometer Scaling ofPreferential Flow in the Unsaturated Zone: International Groundwater Symposium; Bridging the Gap between Measurements and Modeling in Heterogeneous Media, Berkeley, California, March 25-29. Presented.
- Perkins, K.S., Nimmo, J.R., Rose, P.A., Rousseau, J.P., Orr, B.R., Twinnning, B.V., and Anderson, S.R., 2002, Flow system analysis using a surface applied tracer at the Idaho National Engineering and Environmental Laboratory, Idaho [abs]: U.S. Geological Survey Artificial Recharge Workshop Proceedings, Sacramento, California, April 2-4, 2002, p. 79-80. Presented.
- Winfield, K. A., 2002, Using the Steady-State Centrifuge method for measurement of unsaturated hydraulic conductivity on cores from the ADRS: Amargosa Desert Research Site Meeting, U.S. Geological Survey, Amargosa Valley, NV, November 18-19. Presented.
- Nimmo, J.R., and Su, G.W., 2001, Compensating Mechanisms that Minimize Flux Variability through Unsaturated Fractures [abs], Fall Meeting, American Geophysical Union, San Francisco, Eos, v. 82, no. 47, p. 366. Presented.
- Nimmo, J.R., Perkins, K.S., Rose, P.A., Rousseau, J.P., Orr, B.R., Twining, B.V., and Anderson, S.R., 2001, Kilometer-Scale Rapid Flow in a Fractured-Basalt Unsaturated Zone at the Idaho National Engineering and Environmental Laboratory, Fractured Rock 2001, March 26-28, 2001, Toronto.
- Perkins, K.S., Miller, D., and Nimmo, J.R., 2001, Interbed Hydraulic Properties, Baked Zone Alterations, and Structural Effects at the Idaho National Engineering and Environmental Laboratory: Eighth Biannual Unsaturated-Zone Interest Group Meeting, Idaho Falls, ID, July 30-August 2. Presented.
- Su, G.W. and J.R. Nimmo, 2001, Unsaturated flow near the contact of sediments and fractures [abs]: Fall Meeting, American Geophysical Union, San Francisco, Eos, v. 82, no. 47, p. 501. Presented.
- Su, G.W., J.R. Nimmo, and M.I. Dragila, 2001, Effect of isolated fractures on unsaturated zone flow, Eighth Biannual Unsaturated Zone Interest Group Meeting, Idaho Falls, ID, July 30-August 2. Presented.
- Su, G.W., Nimmo, J.R., and Dragila, M.I., 2001, Fluid flow mechanisms in an unsaturated porous rock containing a single fracture, Fractured Rock 2001 Conference, Toronto, Canada, March 25-28, Presented.
- Winfield, K.A., 2001, Representing and predicting sedimentary interbed properties at INEEL [Idaho National Engineering and Environmental Laboratory]: Eighth Biannual Unsaturated-Zone Interest Group Meeting, Idaho Falls, ID, July 30-August 2. Presented.
- Winfield, K.A., and Nimmo, J.R., 2001, Estimating dry-range water retention properties using specific surface area and particle-size measurements [abs.]: Fall Meeting, American Geophysical Union, San Francisco, Eos, v. 82, no. 47, p. 419 Presented.
- Winfield, K.A., 2001, Factors controlling water retention of alluvial deposits, Western Mojave Desert, California: Southwest Groundwater Resources Project Meeting, U.S. Geological Survey, Victorville, California, May 2-4. Presented.
- Perkins, K.S., Nimmo, J.R., 2000, Contaminant-transport implications of large-scale, rapid, horizontal flow in the unsaturated zone at the Idaho National Engineering and Environmental Laboratory [abs]: Fall meeting, American Geophysical Union, San Francisco, 2000, Eos, v. 81, no. 48, p. F414. Presented.
- Su, G.W., Nimmo, J.R., and Dragila, M.I., 2000, Visualization of flow through unsaturated porous rock containing an isolated fracture [abs.]: Fall Meeting , American Geophysical Union, San Francisco, 2000, Eos, V. 81, no. 48, p. 545, Presented.
- Nimmo, J.R., 1999, Evaluating risk assessments for waste buried in a geologically complex unsaturated zone, Unsaturated Zone Interest Group Biannual Meeting, Menlo Park, CA, January 13-15, 1999. Presented.
- Nimmo, J.R., 1999, Accounting for fractures and other macropores in predictions of unsaturated hydraulic conductivity, in Dynamics of Fluids in Fractured Rocks: Concepts and recent advances, Proceedings of International Symposium in Honor of Paul Witherspoon , Berkeley, CA, February 10-12, 1999. Presented.
- Nimmo, J.R., Lewis, A.M., Stonestrom, D.A., and Deason, J.A., 1999, The Darcian approach and practicality: Determination of basin-scale recharge rates from sparse point measurements [abs]; Annual meeting of the Geological Society of America.
- Perkins, K.S., Nimmo, J.R., and Denton, M.A., 1999, Measurement of paleosol hydraulic properties and their influence on contaminant transport in the deep unsaturated zone at the Idaho National Engineering Laboratory [abs.]: Fall meeting, Soil Science Society of America, Salt Lake City, Utah, 1999 Agronomy Abstracts, Presented.
- Winfield, K.A., Nimmo, J.R., Izbicki, J.A., and Martin, P.M., 1999, Structural effects on the unsaturated properties of alluvial sediments, Western Mojave Desert, California [abs]; Annual meeting of Southern California Academy of Sciences, Program and Abstracts p.76. Presented.
- Denton, M.A., Perkins, K.S., and Nimmo, J.R., 1998, Comparison of saturated hydraulic conductivities obtained by laboratory, field, and optimization techniques and their effect on model results for an undisturbed soil at the Idaho National Engineering and Environmental Laboratory test trench area [abs.]; Fall meeting, American Geophysical Union, San Francisco, Eos, v. 79, no. 45, p. 386. Presented.
- Lewis, A.M., and Nimmo, J.R., 1998, Preliminary results of aquifer-recharge estimates interpreted from centrifuge hydraulic property measurements, Abo Arroyo, Middle Rio Grande Basin, New Mexico [abs.]; Proceedings of the Second Annual Workshop, Albuquerque, New Mexico, February 10-11. Presented.
- Lewis, A.M., Nimmo, J.R., and Stonestrom, D.A., 1998, Recharge fluxes through the vadose zone: point estimates interpreted from centrifuge hydraulic property measurements of core samples from an ephemeral stream channel, Middle Rio Grande basin, New Mexico [abs.]; Fall meeting, American Geophysical Union, San Francisco, Eos, v. 79, no. 45, p. 369. Presented.
- Nimmo, J.R., 1998, Modeling structural effects on soil hydraulic properties [abs.], Proceedings of the 16th World Congress of Soil Science, Montpellier, France, August 20-26, 1998. Presented.
- Nimmo, J.R., Denton, M.A., and Perkins, K.S., 1998, Evaluation of factors needed to model infiltration and redistribution in disturbed and undisturbed soil at an Idaho National Engineering and Environmental Laboratory waste-disposal site [abs.]: Fall meeting, American Geophysical Union, San Francisco, Eos, v. 79, no. 45, p. 387. Presented.
- Winfield, K.A., Nimmo, J.R., Izbicki, J.A., and Martin, P.M., 1998, The effect of small-scale structure on the moisture retention characteristics of sediments from two ephemeral washes, Upper Mojave River Basin, CA [abs.]; Fall meeting, American Geophysical Union, San Francisco, Eos, v. 79, no. 45, p. 369. Presented.
- Nimmo, J.R., 1997, Water and tracer movement through the unsaturated zone at a site in the Mojave River Basin; June 4, 1997; PNNL, Hanford, WA, Presented
- Nimmo, J.R., 1997, Predicting soil-water retention and hydraulic conductivity from textural and structural information [abs]; Proceedings of the International Workshop on Hydraulic Properties of Unsaturated Soils, Riverside, CA, October 22-24, 1997. Presented.
- Nimmo, J. R., Deason, J. A., Izbicki, J. A., Martin, P., 1997, Measurements and theory to determine recharge and horizontal spreading under a Mojave Desert wash [abs.]: Annual meeting, Soil Science Society of America, Anaheim, 1997 Agronomy Abstracts, p. 170. Presented.
- Nimmo, J.R., Perkins, K. S., Denton, M. A., Shakofsky, S. M., and Kaminsky, J. F., 1997, Measurement and Modeling of Two-dimensional Unsaturated Zone Water Fluxes near Buried Radioactive Waste at the Idaho National Engineering and Environmental Laboratory [abs.]: Fall meeting, American Geophysical Union, San Francisco, Eos, v. 78, no. 46, p. 298. Presented.
- Nimmo, J.R., Perkins, K. S., Denton, M. A., Shakofsky, S. M., and Kaminsky, J. F., 1997, Measurement and Modeling of Two-dimensional Unsaturated Zone Water Fluxes near Buried Radioactive Waste at the Idaho National Engineering and Environmental Laboratory [abs.]: FTAM Presented.
- Nimmo, J. R., Deason, J. A., Liaw, S. J., Izbicki, J. A., Martin, P., 1996, Measurement and Interpretation of Recharging Fluxes Through Layered Alluvium Under a Mojave Desert Wash [abs.]: Fall meeting, American Geophysical Union, San Francisco, Eos, v. 77, no. 46, p. 283. Presented.
- Nimmo, J. R., 1995, Recharge determination in the Mojave Basin by unsaturated hydraulic property measurement [abs.]: Fall meeting, American Geophysical Union, San Francisco, Eos, v. 76, no. 46, p. 241. Presented.
- Nimmo, J. R., and Shakofsky, S. M., 1995, Soil structural influences on hydraulic properties at the Idaho National Engineering Laboratory [abs.]: Annual meeting, Soil Science Society of America, St. Louis, 1995 Agronomy Abstracts, p. 207. Presented.
- Shakofsky, S. M., and Nimmo, J. R., 1995, Flood simulation study at a radioactive-waste-disposal site, Idaho National Engineering Laboratory [abs.]: Fall meeting, American Geophysical Union, San Francisco, Eos, v. 76, no. 46, p. 242. Presented.
- Stonestrom, D. A., Nimmo, J. R., and Akstin, K. C., 1995, Patterns of recharge beneath the Palouse Catena, Southeast Washington State: Indications from environmental Chloride, Anthropogenic tritium, and centrifuge tests [abs.]: Spring meeting, American Geophysical Union, Baltimore, Eos, v. 76, no. 17, p. 140-141. Presented.
- Nimmo, J. R., 1994, Assessing the range of possibilities for measurement of unsaturated hydraulic conductivity using steady state flow in a centrifuge [abs.]: Annual meeting, Soil Science Society of America, Seattle, 1994 Agronomy Abstracts, p. 247. Presented.
- Nimmo, J. R., and Rossi, Cinzia, 1994, The determination of oven-dry suction for modeling soil water retention [abs.]: Fall meeting, American Geophysical Union, San Francisco, Eos, v. 75, no. 44, p. 300. Presented.
- Shakofsky, S. M., and Nimmo, J. R., 1994, Unsaturated zone properties at a radioactive-waste-disposal site at the Idaho National Engineering Laboratory [abs.]: Spring meeting, American Geophysical Union, Baltimore, Maryland, Eos, v. 75, no. 16, p. 164. Presented.
- Shakofsky, S. M., and Nimmo, J. R., 1994, Improved laboratory and field techniques for measuring unsaturated flow at the Idaho National Engineering Laboratory [abs.]: Annual meeting, Geological Society of America, Seattle, 1994. Presented.
- Nimmo, J. R., and Shakofsky, S. M., 1993, Comparison of unsaturated zone properties in undisturbed and waste-trench soil at the Idaho National Engineering Laboratory [abs.]: Fall meeting, American Geophysical Union, San Francisco, 1993, Eos, v. 74, no. 43, p. 297. Presented.
- Nimmo, J. R., and Honer, K. A., 1992, Automated apparatus for soil water retention measurement [abs.]: Annual meeting, Soil Science Society of America, Minneapolis, 1992 Agronomy Abstracts, p. 224-225. Presented.
- Rossi, Cinzia, and Nimmo, J. R., 1992, Improved modeling of soil water retention at low water content [abs.]: Annual meeting, Soil Science Society of America, Minneapolis, 1992 Agronomy Abstracts, p. 227. Presented.
- Shakofsky, S. M., and Nimmo, J. R., 1992, Structure-preserving laboratory and field techniques for measuring unsaturated flow properties [abs.]: Fall meeting, American Geophysical Union, San Francisco, 1992, Eos, v. 73, no. 43, p. 205. Presented.
- Nimmo, J. R., 1991, Simultaneous measurement of hydraulic conductivity and elastic compression in a centrifuge [abs.]: Spring meeting, American Geophysical Union, Baltimore, 1991, Eos, v. 72, no. 17, p. 123. Presented.
- Nimmo, J. R., 1991, Measuring recharge with a centrifuge: the present state of the art [abs.]: In symposium "Recharge in arid and semi-arid regions," Annual meeting, Soil Science Society of America, Denver, 1991 Agronomy Abstracts, p. 227. Invited.
- Nimmo, J. R., 1989, The use of pore-size information in modeling soil-moisture hysteresis [abs.]: Annual meeting, Soil Science Society of America, Las Vegas, 1989 Agronomy Abstracts, p. 191. Presented. Presented.
- Nimmo, J. R., 1988, Experimental testing of Richards' equation during equilibration in a centrifugal field [abs.]: Spring meeting, American Geophysical Union, Baltimore, 1988, Eos, v. 69, no. 16, p. 353. Presented.
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Nimmo, J. R., 1988, Adaptation of the steady-state centrifuge method to extend the range of hydraulic conductivity measurement [abs.]: Annual meeting, Association of Ground Water Scientists and Engineers, Las Vegas, 1988, p. 11-12. Invited.
- Nimmo, J. R., 1986, Unsaturated hydraulic conductivity of sandy soils: the effect of bulk density and compaction method [abs.]: Annual meeting, Soil Science Society of America, New Orleans, 1986 Agronomy Abstracts, p. 160. Presented
- Nimmo, J. R. and Miller, E. E., l984, A model of the temperature dependence of hysteretic soil-moisture characteristics [abs.]: Spring meeting, American Geophysical Union, Cincinnati, l984, Eos, v. 65, no. 16, p. 205. Presented.
- Nimmo, J. R., Rubin, J., and Hammermeister, D. P. 1984, Unsaturated flow in a centrifugal field: measurement of hydraulic conductivity and testing of Darcy's law [abs.]: Annual meeting, Soil Science Society of America, Las Vegas, 1984 Agronomy Abstracts, p. 170. Presented.
- Miller, E. E. and Nimmo, J. R., l982, The "sipper", a useful pressure regulator [abs.]: Annual meeting, Soil Science Society of America, Anaheim, l982 Agronomy Abstracts, p. l63. Presented.
- Nimmo, J. R. and Miller, E. E., l982, Temperature dependence of q (y) characteristics for three soils [abs.]: Annual meeting, Soil Science Society of America, Anaheim, l982 Agronomy Abstracts, p. l64. Presented.
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