National Research Program | Climate and Disturbance Impacts on Hydrologic Processes



Ebel, B. A., F.K. Rengers, and G.E. Tucker (2016), Observed and simulated hydrologic response for a first-order catchment during extreme rainfall three years after wildfire disturbance, Water Resources Research, 52, 1-23, doi: 10.1002/2016WR019110

Ebel, B. A., (2016), Soil depth and soil-hydraulic properties of the Sugarloaf experimental catchment; 2010 Fourmile Canyon Fire area, Colorado: U.S. Geological Survey data release, doi: 10.5066/F7F769NK

Tindall, J., and M.J. Friedel (2016), Transport of atrazine versus bromide and δO18 in sand, Water, Air, & Soil Pollution, 227: 294 doi: 10.1007/s11270-2973-z

Briggs, M.A., S. Campbell, J. Nolan, M.A. Walvoord, D. Ntarlagiannis, F.D. Day-Lewis, and J.W. Lane (2016), Surface geophysical methods for characterising frozen ground in transitional permafrost landscapes, Permafrost and Periglacial Processes, doi: 10.1002/ppp.1893

Fatichi, S., E.R. Vivoni, F.L. Ogden, V. Y. Ivanov, B. Mirus, D. Gochis, C.W. Downer, M. Camporese, J.H. Davison, B. Ebel, N. Jones, J. Kim, J., G. Mascaro, R. Niswonger, P. Restrepo, R. Rigon, C. Shen, M. Sulis, and D. Tarboton, D., (2016), An overview of current applications, challenges, and future trends in distributed process-based models in hydrology: Journal of Hydrology, 537, 45-60 , doi: 10.1016/j.jhydrol.2016.03.026

Jepsen, S.M., M.A. Walvoord, C.I. Voss, and J. Rover (2015), Effect of permafrost thaw on the dynamics of lakes recharged by ice-jam floods: case study of Yukon Flats, Alaska, Hydrological Processes, 30: 1782-1795, doi: 10.1002/hyp.10756

Loague, K., and B.A. Ebel (2016), Finite-element modeling of physics-based hillslope hydrology, Keith Beven and beyond, Hydrological Processes, doi: 10.1002/hyp.10762

Meixner, T., A.H. Manning, D.A. Stonestrom, D.M. Allen, H. Ajami, K.W. Blasch, A.E. Brookfield, C.I. Castro, J.F. Clark, D.J. Gochis, A.L. Fint, K.L. Neff, R. Niraula, M. Rodell, B.R. Scanlon, K. Singha, and M.A. Walvoord (2016), Implications of projected climate change for groundwater recharge in the western United States, Journal of Hydrology, 534, 124-138, doi: 10.1016/j.jhydrol.2015.12.027

Moody, J.A. B.A. Ebel, P. Nyman, D.A. Martin, C. Stoof, and R. McKinley (2016), Relations between soil hydraulic properties and burn severity, International Journal of Wildland Fire, 25, 279-293, doi: 10.1071/WF14062

Rengers, F.K., G.E. Tucker, J.A. Moody, and B.A. Ebel, (2016), Illuminating wildfire erosion and deposition patterns with repeat terrestrial lidar: Journal of Geophysical Research: Earth Surface, doi: 10.1002/2015JF003600

Walvoord, M.A., and B.L. Kurylyk (2016), Hydrologic Impacts of Thawing Permafrost-A Review, Vadose Zone Journal, 15, doi:10.2136/vzj2016.01.0010


Ebel, B.A., F.K. Rengers, and G.E. Tucker (2015), Aspect-dependent soil saturation and insight into debris-flow initiation during extreme rainfall in the Colorado Front Range, Geology, 43, 659-662, doi: 10.1130/G36741.1

Green, C.T., M.A. Walvoord, B.J. Andraski, R.G. Striegl, and D.A. Stonestrom (2015), Multimodel analysis of anisotropic diffusive tracer-gas transport in a deep arid unsaturated zone, Water Resources Research, 51, doi: 10.1002/2014WR016055

Minsley, B.J., T.P. Wellman, M.A. Walvoord, and A. Revil (2015), Sensitivity of airborne geophysical data to sublacustrine and near-surface permafrost thaw, The Cryosphere, 9, 781-794, doi: 10.5194/tc-9-781-2015

Walvoord, M.A., F.D. Day-Lewis, J.W Lane, Jr., R.G. Striegl, C.I. Voss, T. Douglas and others (2015), Improved understanding of permafrost controls on hydrology in interior Alaska by integration of ground-based geophysical permafrost characterization and numerical modeling, Final Report: DTIC Document, v. SERDP Project RC-2111, ADA621851, 111 p.


Briggs, M.A., M.A. Walvoord, J.M. McKenzie, C.I. Voss, F.D. Day-Lewis, J.W. Lane (2014), New permafrost is forming around shrinking arctic lakes, but will it last?, Geophysical Research Letters, doi: 10.1002/2014GL059251

Ebel, B.A., and B.B. Mirus (2014), Disturbance hydrology: challenges and opportunities, Hydrological Processes, 28, 5140-5148, doi: 10.1002/hyp.10256

Hinckley, E.S., B.A. Ebel, R.T. Barnes, R.S. Anderson, M.W. Williams, and S.P. Anderson (2014), Aspect control of water movement on hillslopes near the rain-snow transition of the Colorado Front Range, Hydrological Processes, 28, 74–85, doi: 10.1002/hyp.9549

Minsley, B.M., T.P. Wellman, M.A. Walvoord, A. Revil (2014), Modeling the hydrogeophysical response of lake talik evolution, SEG Technical Program Expanded Abstracts 2014, pp. 4528-4533, doi: 10.1190/segam2014-0311.1

Moody, J.A., and B.A. Ebel (2014), Infiltration and runoff generation processes in fire-affected soils, Hydrological Processes, 28, 3432-3453, doi: 10.1002/hyp.9857

O'Donnell, J.A., G.R. Aiken, M.A. Walvoord, P.A. Raymond, K.D. Butler, M.M. Dornblaser, and K. Heckman (2014), Using dissolved organic matter age and composition to detect permafrost thaw in boreal watersheds of interior Alaska, Journal of Geophysical Research: Biogeosciences, 119, doi: 10.1002/2014JG002695

Pastick, N.J, M.T. Jorgenson, B.K. Wylie, J.R. Rose, M. Rigge, and M.A. Walvoord (2014), Spatial variability and landscape controls of near-surface permafrost within the Yukon River Basin, Journal of Geophysical Research - Biogeosciences, 119, 1244-1265, doi: 10.1002/2013JG002594

Tindall, J.A., and A. Chen (2014), Variables that affect agricultural chemicals in groundwater in Nebraska, Water Air Soil Pollution, 225, 1862, doi: 10.1007/s11270-013-1862-0

Walvoord, M.A., B. Andraski, C.T. Green, D. Stonestrom, and R. Striegl (2014), Field-scale sulfur hexafluoride tracer experiment to understand long distance gas transport in the deep unsaturated zone, Vadose Zone Journal, 13, (8) doi: 10.2136/vzj2014.04.0045


Ebel, B.A. (2013), Simulated unsaturated flow processes after wildfire and interactions with slope aspect, Water Resources Research, 49, 8090–8107, doi: 10.1002/2013WR014129

Ebel, B.A. (2013), Wildfire and aspect effects on hydrologic states after the 2010 Fourmile Canyon Fire, Vadose Zone Journal, 12, vzj2012.0089, doi: 10.2136/vzj2012.0089

Ebel, B.A., and J.A. Moody (2013), Rethinking infiltration in wildfire-affected soils, Hydrological Processes, 27, 1510–1514, doi: 10.1002/hyp.9696

Ebel, B.A., and J.R. Nimmo (2013), An alternative process model of preferential contaminant travel times in the unsaturated zone: Application to Rainier Mesa and Shoshone Mountain, Nevada, Environmental Modeling and Assessment, 18, 345-363, doi: 10.1007/s10666-012-9349-8

Jepsen, S.M., C.I. Voss, M.A. Walvoord, B.J. Minsley, and J. Rover (2013), Linkages between lake shrinkage/expansion and sublacustrine permafrost distribution determined from remote sensing of Interior Alaska, USA, Geophysical Research Letters, 40, 882-887, doi: 10.1002/grl.50187

Jepsen, S.M., C.I. Voss, M.A. Walvoord, J.R. Rose, B.J. Minsley, and B.D. Smith (2013), Sensitivity analysis of lake mass balance in discontinuous permafrost: the example of disappearing Twelvemile Lake, Yukon Flats, Alaska (USA), Hydrogeology Journal, 21, 185-200, doi: 10.1007/s10040-012-0896-5

Loague, K., and B.A. Ebel (2013), Conceptualization in catchment modeling. In Treatise on Geomorphology, Edited by J. F. Shroder, Vol. 7, pp. 105-121. San Diego, Academic Press, doi: 10.1016/B978-0-12-374739-6.00154-8

Pastick, N.J., M.T. Jorgenson, B.K. Wylie, B.J. Minsley, L. Ji, M.A. Walvoord, B.D. Smith, J.D. Abraham, and J.R. Rose (2013), Extending airborne electromagnetic surveys for regional active layer and permafrost mapping with remote sensins and ancillary data, Yukon Flats Ecoregions, Central Alaska, Permafrost and Periglacial Processes, doi: 10.1002/ppp.1775

Wellman, T., C. Voss, and M. Walvoord (2013), Impacts of climate, lake size, and supra- and sub-permafrost groundwater flow on lake-talik evolution, Yukon Flats, Alaska, USA, Hydrogeology Journal, 21, 281-298, doi: 10.1007/s10040-012-0941-4


Ebel, B.A. (2012), Wildfire impacts on soil-water retention in the Colorado Front Range, USA, Water Resources Research, 48, W12515, doi: 10.1029/2012WR012362

Ebel, B.A. (2012), Impacts of wildfire and slope aspect on soil temperature in a mountainous environment, Vadose Zone Journal, 11, vzj2012.0017, doi: 10.2136/vzj2012.0017

Ebel, B.A., J.A. Moody, and D.A. Martin (2012), Hydrologic conditions controlling runoff generation immediately after wildfire, Water Resources Research, 48, W03529, doi: 10.1029/2011WR011470

Ebel, B.A., E. S. Hinckley, and D.A. Martin (2012), Soil-water dynamics and unsaturated storage during snowmelt following wildfire, Hydrology and Earth System Sciences, 16, 1401–1417, doi: 10.5194/hess-16-1401-2012

Hussin, A., J. Tindall, and E. Moran (2012), Water Security and Interconnected Challenges in Libya. TinMore Institute Research Report WS121027.

Jepsen, S.M., J. Koch, J. Rose, C.I. Voss, and M.A. Walvoord (2012), Thermal and hydrological observations near Twelvemile Lake in discontinuous permafrost, Yukon Flats, interior Alaska, September 2010 - August 2011, U.S. Geol. Surv. Open File Report 2012-1121, 25 p.

Minsley, B.J., J.D. Abraham, B.D. Smith, J.C. Cannia, C.I. Voss, M.T. Jorgenson, M.A. Walvoord, B.K. Wylie, L. Anderson, L.B. Ball, M. Deszcz-Pan, T.P. Wellman and T.A. Ager (2012), Airborne geophysical mapping of permafrost in the Yukon Flats, Alaska, Geophysical Research Letters, 39, L02503, doi: 10.1029/2011GL050079

Moody, J.A, and B.A. Ebel (2012), Difference infiltrometer: A method to measure temporally variable infiltration rates during rainstorms, Hydrological Processes, 26, 3312-3318, doi: 10.1002/hyp.9424

Moody, J.A, and B.A. Ebel (2012), Hyper-dry conditions provide new insights into the cause of extreme floods after wildfire, Catena, 93, 58-63, doi: 10.1016/j.catena.2012.01.006

O'Donnell, J.A., G.R. Aiken, M.A. Walvoord, and K.D. Butler (2012), Dissolved organic matter composition of winter flow in the Yukon River basin: Implications of permafrost thaw and increased groundwater discharge, Global Biogeochemical Cycles, 26, GB0E06, doi: 10.1029/2012GB004341

Walvoord, M.A., C.I. Voss, and T.P. Wellman (2012), Influence of permafrost distribution on groundwater flow in the context of climate-driven permafrost thaw: Example from Yukon Flats Basin, Alaska, USA, Water Resources Research, 48, 7, doi: 10.1029/2011WR011595


Mirus, B.B., B.A. Ebel, C.S. Heppner, and K. Loague (2011), Assessing the detail needed to capture rainfall-runoff dynamics with physics-based hydrologic-response simulation, Water Resources Research, 47, W00H10, doi: 10.1029/2010WR009906


BeVille, S.H., B.B. Mirus, B.A. Ebel, G.G. Mader, and K. Loague (2010), Using simulated hydrologic response to revisit the 1973 Lerida Court landslide, Environmental Earth Sciences, 61, 1249-1257, doi: 10.1007/s12665-010-0448-z

Ebel, B.A., K. Loague, and R.I. Borja (2010), The impacts of hysteresis on variably-saturated hydrologic response and slope failure, Environmental Earth Sciences, 61, 1215-1225, doi: 10.1007/s12665-009-0445-2

Ebel, B.A., and J.R. Nimmo (2010), Hydraulic property and soil textural classification measurements for Rainier Mesa, Nevada Test Site, Nevada. U.S. Geological Survey Open-File Report 2009-1264: 17 p. USGS Pubs

Loague, K., C. S. Heppner, B.A. Ebel, and J.E. VanderKwaak (2010), The quixotic search for a comprehensive understanding of hydrologic response at the surface: Horton, Dunne, Dunton, and the role of concept-development simulation, Hydrological Processes, 24, 2499-2505, doi: 10.1002/hyp.7834

Tindall, J.A., and Campbell, A.A. (2010), Water security—National and global issues: U.S. Geological Survey Fact Sheet 2010–3106, 6 p.


Brabets, T.P., and M.A. Walvoord (2009), Trends in streamflow in the Yukon River Basin from 1944 to 2005 and the influence of the Pacific Decadal Oscillation, Journal of Hydrology, 371, 108-119, doi: 10.1016/j.jhydrol.2009.03.018

Ebel, B.A., and J.R. Nimmo (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: 74 p, USGS Pubs

Ebel, B.A., B.B. Mirus, C.S. Heppner, J. E. VanderKwaak, and K. Loague (2009), First-order exchange coefficient coupling for simulating surface water–groundwater interactions: Parameter sensitivity and consistency with a physics-based approach, Hydrological Processes, 23, 1949–1959, doi: 10.1002/hyp.7279

Walvoord, M., P. Schuster, and R. Striegl (2009), Understanding the effects of climate change in the Yukon River Basin through a synergistic research approach, in Planning for an uncertain future—Monitoring, integration, and adaptation. Proceedings of the Third Interagency Conference on Research in the Watersheds, Webb, R.M.T., and Semmens, D.J., eds., U.S. Geological Survey Scientific Investigations Report 2009-5049.


Amundson, R., S. Ewing, W. Dietrich, B. Sutter, J. Owen, O. Chadwick, K. Nishiizumi, M. Walvoord, and C. McKay, (2008), On the in situ aqueous alteration of soils on Mars, Geochimica et Cosmochimica Acta (72), 3845-3864, doi: 10.1016/j.gca.2008.04.038

Ebel, B.A., K. Loague, D.R. Montgomery, and W.E. Dietrich (2008), Physics-based continuous simulation of long-term near-surface hydrologic response for the Coos Bay experimental catchment, Water Resources Research, 44, W07417, doi: 10.1029/2007WR006442

Ebel, B.A., and K. Loague (2008), Rapid simulated hydrologic response within the variably saturated near surface, Hydrological Processes, 22, 464-471, doi: 10.1002/hyp.6926

Friedel, M.J., J.A. Tindall, D. Sardan, D.L. Fey, and G.L. Poputa (2008), Reconnaissance Study of Water Quality in the Mining-Affected Aries River Basin, Romania, U.S. Geological Survey Open-File Report 2008–1176, 40 p.

Gurdak, J.J., M.A. Walvoord, and P.B. McMahon (2008), Susceptibility to enhanced chemical migration from depression-focused preferential flow, High Plains Aquifer, Vadose Zone Journal, 7, 1172-1184, doi: 10.2136/vzj2007.0145

Walvoord, M.A., B.J. Andraski, D.P. Krabbenhoft, and R.G. Striegl, (2008), Transport of elemental mercury in the unsaturated zone from a waste disposal site in an arid region: Applied Geochemistry, 23, p. 572–583, doi: 10.1016/j.apgeochem.2007.12.014


Ebel, B.A., K. Loague, W.E. Dietrich, D.R. Montgomery, R. Torres, S.P. Anderson, and T.W. Giambelluca (2007), Near-surface hydrologic response for a steep, unchanneled catchment near Coos Bay, Oregon: 1. Sprinkling experiments, American Journal of Science, 307, 678-708, doi: 10.2475/04.2007.02

Ebel, B.A., K. Loague, J.E. VanderKwaak, W.E. Dietrich, D.R. Montgomery, R. Torres, and S.P. Anderson (2007), Near-surface hydrologic response for a steep, unchanneled catchment near Coos Bay, Oregon: 2. Physics-based simulations, American Journal of Science, 307, 709-748, doi: 10.2475/04.2007.03

Figueroa-Johnson, M., J. Tindall, and M. Friedel (2007), A comparison of 18Oδ composition of water extracted from suction lysimeters, centrifugation, and azeotropic distillation, Water, Air, & Soil Pollution, 184, 63-75, doi: 10.1007/s11270-007-9399-8

Liu, L., J. Tindall, and M. Friedel (2007), Biodegradation of PAHs and PCBs in soils and sludges, Water, Air, & Soil Pollution, 181, 281-296, doi: 10.1007/s11270-006-9299-3

Liu, L., J. Tindall, M. Friedel, and W. Zhang (2007), Biodegradation of organic chemicals in soil/water microcosms system: Model Development, Water, Air, & Soil Pollution, 178, 131-143, doi: 10.1007/s11270-006-9185-z

Mirus, B.B., B.A. Ebel, K. Loague, and B.C. Wemple (2007), Simulated effect of a forest road on near-surface hydrologic response: Redux, Earth Surface Processes and Landforms, 32, 126–142, doi: 10.1002/esp.1387

Rao, B.A., T.A. Anderson, G.J. Orris, S. Rajagopalan, R.M. Sandvig, B.R. Scanlon, D.A. Stonestrom, M.A. Walvoord, and W.A. Jackson (2007), Widespread natural perchlorate in unsaturated zones of the southwest US, Environmental Science & Technology, 41, 4522-4528, doi: 10.1021/es062853i

Stonestrom, D.A., D.E. Prudic, M.A. Walvoord, J.D. Abraham, A.E. Stewart-Deaker, P.A. Glancy, J. Constantz, R.J. Laczniak, B.J. Andraski (2007), Focused Ground-Water Recharge in the Amargosa Desert Basin. Geological Survey (U.S.) Professional Paper 1703-E, p. 107-136

Walvoord, M.A., and R.G. Striegl (2007), Increased groundwater to stream discharge from permafrost thawing in the Yukon River basin: Potential impacts on lateral export of carbon and nitrogen, Geophysical Research Letters, 34, L12402, doi: 10.1029/2007GL030216


Borja, R.I., G. Oettl, B. Ebel, and K. Loague (2006), Hydrologically driven slope failure initiation in variably saturated porous media. In Modern Trends in Geomechanics. Wu, W. and H.S. Yu (Eds.), pp. 303-311, Springer-Verlag, Berlin Heidelberg, doi: 10.1007/978-3-540-35724-7_18

Ebel, B.A., and K. Loague (2006), Physics-based hydrologic-response simulation: Seeing through the fog of equifinality, Hydrological Processes, 20, 2887–2900, doi: 10.1002/hyp.6388

Kwicklis, E., A. Wolfsberg, P. Stauffer, M. Walvoord and M. Sully (2006), Multiphase, multicomponent parameter estimation for liquid and vapor fluxes in deep arid systems using hydrologic data and natural environmental tracers, Vadose Zone Journal, 5, p. 934-950, doi: 10.2136/vzj2006.0021

Loague, K., C.S. Heppner, B.B. Mirus, B.A. Ebel, Q. Ran, A.E. Carr, S. H. BeVille, and J.E. VanderKwaak (2006), Physics-based hydrologic-response simulation: foundation for hydroecology and hydrogeomorphology, Hydrological Processes, 20, 1231–1237, doi: 10.1002/hyp.6388


Ehlmann, B.L., R.E. Arvidson, B.L. Jolliff, S.S. Johnson, B.Ebel, N. Lovenduski, J.D. Morris, J.A. Byers, N.O. Snider, and R.E. Criss (2005), Hydrologic and Isotopic Modeling of Alpine Lake Waiau, Mauna Kea, Hawai‘i, Pacific Science, 59, 1–15, doi: 10.1353/psc.2005.0005

Loague, K., C.S. Heppner, R.H. Abrams, A.E. Carr, J.E. VanderKwaak, and B.A. Ebel (2005), Further testing of the Integrated Hydrology Model (InHM): event-based simulations for a small rangeland catchment located near Chickasha, Oklahoma, Hydrological Processes, 19, 1373–1398, doi: 10.1002/hyp.5566

Seyfried, M., S. Schwinning, M. Walvoord, W. Pockman, R. Jackson, B. Newman, and F. Phillips (2005), Ecohydrological control of deep drainage in semiarid regions, Ecology, 86 (2), 277-287, doi: 10.1890/03-0568

Stearns, M, J. Tindall, G. Cronin, M. Friedel and E. Bergquist (2005), Effects of coal-bed methane discharge waters on the vegetation and soil ecosystem in Powder River Basin, Wyoming, Water, Air, & Soil Pollution, 168, 33-57

Tindall, J., M. Friedel, R. Szmajter, and S. Cuffin (2005), Part 1: Vadose-zone column studies of toluene (enhanced bioremediation) in a shallow unconfined aquifer, Water, Air, & Soil Pollution, 168, 325-357

Tindall, J., E. Weeks, and M. Friedel (2005), Part 2: A field study of enhanced remediation of toluene in the vadose zone using a nutrient solution, Water, Air, & Soil Pollution, 168, 359-389

Walvoord, M.A., R.G. Striegl, D.E. Prudic, and D.A. Stonestrom (2005), CO2 dynamics in the Amargosa Desert: Fluxes and isotopic speciation in a deep unsaturated zone, Water Resources Research, 41, no 2, doi: 10.1029/2004WR003599


Walvoord, M.A., D.A. Stonestrom, B.J. Andraski, and R.G. Striegl (2004), Constraining the inferred paleohydrologic evolution of a deep unsaturated zone in the Amargosa Desert, Vadose Zone Journal, 3, p. 502-512, doi: 10.2136/vzj2004.0502

Phillips, F.M., M.A. Walvoord, and E.E. Small (2004), Effects of environmental change on groundwater recharge in the desert southwest, in Hogan, J.F, Phillips, F.M, and Scanlon, B.R., eds., Groundwater recharge in a desert environment---The southwestern United States: American Geophysical Union Water Science and Applications Series, v. 9, p. 273-294, doi: 10.1029/009WSA15

Stonestrom, D.A., J.D. Abraham, B.J. Andraski, R.J. Baker, C.J. Mayers, R.L. Michel, D.E. Prudic, R.G. Striegl and M.A. Walvoord (2004), Monitoring radionuclide contamination in the unsaturated zone - lessons learned at the Amargosa Desert Research Site, Nye County, Nevada, Workshop on Long-term Performance Monitoring of Metals and Radionuclides in the Subsurface, Reston, VA, April 21-22, 2004: Tallahassee, Florida State University.

Walvoord, M.A., F.M. Phillips, D.A. Stonestrom, R.D. Evans, P.C. Hartsough, B.D. Newman and R.G. Striegl (2004), Response to comment on "A reservoir of nitrate beneath desert soils": Science, 304, p. 51c.

Walvoord, M.A., and B.R. Scanlon (2004), Hydrologic processes in deep vadose zones in interdrainage arid environments, in Hogan, J.F, Phillips, F.M, and Scanlon, B.R., eds., Groundwater recharge in a desert environment---The southwestern United States: American Geophysical Union Water Science and Applications Series, v. 9, p. 15-28, doi: 10.1029/009WSA02

Walvoord, M.A., and D.A. Stonestrom (2004), Enhanced gas-phase transport in a deep unsaturated zone, Amargosa Desert (U.S.A), Proceedings of the International Conference on Finite-Element Models -- MODFLOW and More, Karlovy Vary, Czech Republic, September 13-16, 2004: Fontainebleau, France, International Association of Hydrologic Sciences.


Walvoord, M.A., F.M. Phillips, D.A. Stonestrom, R.D. Evans, P.C. Hartsough, B.D. Newman, and R.G. Striegl (2003), A reservoir of nitrate beneath desert soils, Science, 302, 5647, p. 1021-1024, doi: 10.1126/science.1086435

2002 and earlier

Walvoord, M.A., F.M. Phillips, S.W. Tyler, and P.C. Hartsough (2002), Deep arid system hydrodynamics 2: Application to paleohydrologic reconstruction using vadose-zone profiles from the northern Mojave Desert, Water Resources Research, 38, 1291, doi: 10.1029/2001WR000825

Walvoord, M.A., M.A. Plummer, F.M. Phillips, A.V. Wolfsberg (2002), Deep arid system hydrodynamics 1. Equilibrium states and response times in thick desert vadose zones, Water Resources Research, 38, doi: 10.1029/2001WR000824

Hartsough P.C., S.W. Tyler, J. Sterling, and M.A. Walvoord (2001), A 14.6 kyr record of nitrogen flux from desert soil profiles as inferred from vadose zone pore waters, Geophysical Research Letters, 28, 15, 2955 – 2958, doi: 10.1029/2000GL011823

Tindall, J.A., J.R. Kunkel, and D.E. Anderson (1999), Unsaturated Zone Hydrology for Scientists and Engineers, Prentice Hall, Englewood Cliffs, New Jersey. 625 p.

Walvoord, M., P. Pegram, F. Phillips, M. Person, T. Kieft, J. Fredrickson, J. McKinley, and J. Swenson (1999), Groundwater flow and geochemistry in the southeastern San Juan Basin: Implications for microbial transport and activity, Water Resources Research, 35, 1409 – 1425, doi: 10.1029/1999WR900017