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United States Department of Agriculture

Agricultural Research Service

Mary Hennessey. Nichols

Research Hydraulic Engineer


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Uncertainty in measuring runoff from small watersheds using instrumented outlet-pond - (Peer Reviewed Journal)
Nichols, M.H., Anson, E.L., Keefer, T.O. 2014. Uncertainty in measuring runoff from small watersheds using instrumented outlet-pond. Transactions of the ASABE. 57(3):851-859.
Effect of check dams on runoff, sediment yield and retention on small semi-arid watersheds 2202 - (Peer Reviewed Journal) - (07-Feb-14)
Very high resolution time-lapse photography for plant and ecosystems research - (Peer Reviewed Journal)
Nichols, M.H., Steven, J., Sargent, R., Dille, P., Schapiro, J. 2013. Very high resolution time-lapse photography for plant and ecosystems research. Applications in Plant Sciences. 1(9):1300033.
A sediment budget for a small semiarid watershed in southeastern Arizona, USA - (Peer Reviewed Journal)
Nichols, M.H., Nearing, M.A., Polyakov, V.O., Stone, J.J. 2012. A sediment budget for a small semiarid watershed in southeastern Arizona, USA. Geomorphology. 180-181: 137-145.
Short-term soil moisture response to low-tech erosion control structures in a semi arid rangeland - (Peer Reviewed Journal)
Nichols, M.H., Mcreynolds, K., Reed, C. 2012. Short-term soil moisture response to low-tech erosion control structures in a semi arid rangeland. Catena. 98:104-109.
A comparison of two stream gauging systems for measuring runoff and sediment yield on semi-arid wtershed - (Peer Reviewed Journal)
Polyakov, V.O., Nearing, M.A., Hawdin, A., Wilkinson, S., Nichols, M.H. 2013. A comparison of two stream gauging systems for measuring runoff and sediment yield on semi-arid wtershed . Earth Surface Processes and Landforms. 38: 383–390.
Utilizing long-term ARS data to compare and contrast hydroclimatic trends from snow and rainfall dominated watersheds 2142 - (Proceedings) - (06-Sep-11)
Headcut retreat in a semiarid watershed in the southwestern United States since 1935 - (Peer Reviewed Journal)
Reike-Zapp, D., Nichols, M.H. 2011. Headcut retreat in a semiarid watershed in the southwestern United States since 1935. Catena. 87(1):1-10.
Runoff and erosional response to a drought-induced shift in a desert grassland community composition - (Peer Reviewed Journal)
Polyakov, V.O., Nearing, M.A., Stone, J.J., Hamerlynck, E.P., Nichols, M.H., Holifield Collins, C.D., Scott, R.L. 2010. Runoff and erosional response to a drought-induced shift in a desert grassland community composition. Journal of Geophysical Research-Biogeosciences. 115: 1-8. G04027.
Patterns of grain-size dependent sediment tranpsort in low-ordered, ephemeral-channels - (Peer Reviewed Journal)
Yuill, B., Nichols, M.H. 2010. Patterns of grain-size dependent sediment tranpsort in low-ordered, ephemeral-channels. Earth Surface Processes and Landforms. p. 1-13.
Long-term runoff and sediment yields from small semi-arid watersheds in southern Arizona Reprint Icon - (Peer Reviewed Journal)
Polyakov, V., Nearing, M.A., Nichols, M.H., Scott, R.L., Stone, J.J., Mcclaran, M. 2010. Long-term runoff and sediment yields from small semi-arid watersheds in southern Arizona. Water Resources Research. 46: W09512, doi:10.1029/2009WR009001.
COARSE BED MATERIAL PATCH EVOLUTION IN LOW-ORDER, EPHEMERAL CHANNELS 2007 - (Peer Reviewed Journal) - (18-Feb-10)
Very High Resolution Panoramic Photography to Improve Conventional Rangeland Monitoring 1994 - (Peer Reviewed Journal)
Nichols, M.H., Ruyle, G.B., Nourbakhsh, I.R. 2009. Very High Resolution Panoramic Photography to Improve Conventional Rangeland Monitoring. 62:579–582.
Estimating an Impedance-to-Flow Parameter for Flood Peak Prediction in Semi-Arid Watersheds 1997 - (Peer Reviewed Journal) - (17-Aug-09)
Tracing sediment movement on semi-arid watershed using Rare Earth Elements 1988 - (Peer Reviewed Journal)
Polyakov, V., Kimoto, A., Nearing, M.A., Nichols, M.H. 2009. Tracing sediment movement on semi-arid watershed using Rare Earth Elements. Soil Science Society of America Journal. 73:1559-1565.
A new Splash and Sheet Erosion Equation for Rangelands 1957 - (Peer Reviewed Journal)
Wei, H., Nearing, M.A., Stone, J.J., Guertin, D.P., Spaeth, K., Pierson Jr, F.B., Nichols, M.H., Moffet, C.A. 2009. A new Splash and Sheet Erosion Equation for Rangelands. Soil Science Society of America Journal. 73:1386-1392.
Long-term data collection at USDA experimental sites for studies of ecohydrology - (Peer Reviewed Journal)
Moran, M.S., Peters, D.C., Mcclaren, M.P., Nichols, M.H., Adams, M.B. 2008. Long-term data collection at USDA experimental sites for studies of ecohydrology. Journal of Ecohydrology. 1:377–393. DOI: 10.1002/eco.24.
Event to multidecadal persistence in rainfall and runoff in southeast Arizona 1908 - (Peer Reviewed Journal)
Goodrich, D.C., Unkrich, C.L., Keefer, T.O., Nichols, M.H., Stone, J.J., Levick, L., Scott, R.L. 2008. Event to multidecadal persistence in rainfall and runoff in southeast Arizona. Water Resour. Res., 44, W05S14, doi:10.1029/2007WR006222.
Long-term data collection at USDA experimental sites for studies of ecohydrology 1955 - (Abstract Only)
Moran, M.S., Peters, D.C., Mcclaran, M., Nichols, M.H., Adams, M. 2008. Long-term data collection at USDA experimental sites for studies of ecohydrology (abstract). 28th Conference on Agriculture and Forest Meteorology, 28 April - 2 May, Orlando, FL. 1955 . Agriculture and Forest Meterology.
Geographic information systems database, Walnut Gulch Experimental Watershed, Arizona, United States 1868 - (Peer Reviewed Journal)
Heilman, P., Nichols, M.H., Goodrich, D.C., Miller, S.N., Guertin, D.P. 2008. Geographic information systems database, Walnut Gulch Experimental Watershed, Arizona, United States. Water Resources Research, Vol. 44, W05S11, doi:10.1029/2006WR005777.
Long-term precipitation database, Walnut Gulch Experimental Watershed, Arizona, United States 1864 - (Peer Reviewed Journal)
Goodrich, D.C., Keefer, T.O., Unkrich, C.L., Nichols, M.H., Osborn, H.B., Stone, J.J., Smith, J.R. 2008. Long-term precipitation database, Walnut Gulch Experimental Watershed, Arizona, United States. Water Resources Research, Vol. 44, W05S04, doi:10.1029/2006WR005782.
Long-term runoff database, Walnut Gulch Experimental Watershed, Arizona, United States 1888 - (Peer Reviewed Journal)
Stone, J.J., Nichols, M.H., Goodrich, D.C., Buono, J. 2008. Long-term runoff database, Walnut Gulch Experimental Watershed, Arizona, United States. Water Resources Research, Vol. 44, W05S05, doi:10.1029/2006WR005733.
A brief background on the U.S. Department of Agriculture Agricultural Research Service Walnut Gulch Experimental Watershed 1857 - (Peer Reviewed Journal)
Renard, K.G., Nichols, M.H., Woolhiser, D.A., Osborn, H.B. 2008. A brief background on the U.S. Department of Agriculture Agricultural Research Service Walnut Gulch Experimental Watershed. Water Resources Research. Vol. 44, W05S02, doi:10.1029/2006WR005691.
Sediment database, Walnut Gulch Experimental Watershed, Arizona, United States 1853 - (Peer Reviewed Journal)
Nichols, M.H., Stone, J.J., Nearing, M.A. 2008. Sediment database, Walnut Gulch Experimental Watershed, Arizona, United States. Water Resources Research. Vol. 44, W05S06, doi:10.1029/2006WR005682.
Southwest Watershed Research Center Data Access Project 1851 - (Peer Reviewed Journal)
Nichols, M.H., Anson, E. 2008. Southwest Watershed Research Center Data Access Project. Water Resources Research. Vol. 44, W05S03, doi:10.1029/2006WR005665.
Preface to special section on Fifty Years of Research and Data Collection: U.S. Department of Agriculture Walnut Gulch Experimental Watershed 1930 - (Peer Reviewed Journal)
Moran, M.S., Emmerich, W.E., Goodrich, D.C., Heilman, P., Holifield Collins, C.D., Keefer, T.O., Nearing, M.A., Nichols, M.H., Renard, K.G., Scott, R.L., Smith, J.R., Stone, J.J., Unkrich, C.L., Wong, J.K. 2008. Preface to special section on Fifty Years of Research and Data Collection: U.S. Department of Agriculture Walnut Gulch Experimental Watershed. Water Resources Research, Vol. 44, W05S01, doi:10.1029/2007WR006083.
Sediment yields from unit-source semi-arid watersheds at Walnut Gulch 1893 - (Peer Reviewed Journal)
Nearing, M.A., Nichols, M.H., Stone, J.J., Renard, K.G., Simanton, J.R. 2008. Sediment yields from unit-source semi-arid watersheds at Walnut Gulch. Water Resources Research. Vol. 43, W06426, doi:10.1029/2006WR005692.
THE WALNUT GULCH EXPERIMENTAL WATERSHED - 50 YEARS OF WATERSHED MONITORING AND RESEARCH 1664 - (Book / Chapter)
Nichols, M.H. 2007. The walnut gulch experimental watershed - 50 years of watershed monitoring and research. In: Monitoring and Evaluation of Soil Conservation and Watershed Development Projects. de Graaff, J, Cameron, J., Sombatpanit, S., Pieri, C., Woodhill, J.(eds.). World Association of Soil and Water Conservation, Bangkok. 496 p.
DWEPP: A DYNAMIC SOIL EROSION MODEL BASED ON WEPP SOURCE TERMS 1819 - (Peer Reviewed Journal)
Bulygina, N.S., Nearing, M.A., Stone, J.J., Nichols, M.H. 2007. Dwepp: a dynamic soil erosion model based on wepp source terms. Earth Surface Processes and Landforms. 32:998-1012.
Spatial patterns of scour and fill in dryland sand bed streams 1843 - (Peer Reviewed Journal)
Powell, D.M., Brazier, R., Wainwright, J., Parsons, A., Nichols, M.H. 2006. Spatial patterns of scour and fill in dryland sand bed streams. Water Resources Research Vol. 42, W08412,doi:10.1029/2005WR004516.
MONITORING COARSE SEDIMENT PARTICLE DISPLACEMENT USING A RADIO FREQUENCY IDENTIFICATION SYSTEM 1773 - (Proceedings)
Nichols, M.H. 2006. Monitoring coarse sediment particle displacement using a radio frequency identification system. Proc. 8th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno NV.
SPATIAL PATTERNS OF SOIL EROSION AND DEPOSITION IN TWO SMALL, SEMI-ARID WATERSHEDS 1771 - (Proceedings)
Nearing, M.A., Kimota, A., Nichols, M.H., Ritchie, J.C. 2006. Spatial patterns of soil erosion and deposition in two small, semi-arid watersheds. Proc. 8th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno, Nevada.
MEASURED SEDIMENT YIELD RATES FROM SEMIARID RANGELAND WATERSHEDS 1751 - (Peer Reviewed Journal)
Nichols, M.H. 2006. Measured sediment yield rates from semiarid rangeland watersheds. Rangeland Ecol. and Manage. 59(1):55-62.
SPATIAL PATTERNS OF EROSION IN TWO SEMIARID WATERSHEDS 1770 - (Abstract Only)
Nearing, M.A., Kimoto, A., Nichols, M.H., Ritchie, J.C. 2005. Spatial patterns of erosion in two semiarid watersheds. 2nd Annual Conference on Research Insights in Semiarid Ecosystems. (Abstract). University of Arizona, Tucson, AZ., October 2005. p. 8.
SPATIAL PATTERNS OF EROSION IN TWO SEMIARID WATERSHEDS 1772 - (Proceedings) - (29-Jul-05)
SPATIAL PATTERNS OF SOIL EROSION AND DEPOSITION IN TWO SMALL, SEMIARID WATERSHEDS 1725 - (Peer Reviewed Journal)
Nearing, M.A., Kimoto, A., Nichols, M.H., Ritchie, J.C. 2005. Spatial patterns of soil erosion and deposition in two small, semiarid watersheds J. Geophys. Res., 110, F04020, doi:10.1029/2005JF000290.
TRENDS IN PRECIPITATION RUNOFF AND IN CHANNEL VEGETATION IN THE USDA-ARS WALNUT GULCH EXPERIMENTAL WATERSHED 1735 - (Proceedings)
Nichols, M.H., Nearing, M.A., Shipek, D.C. 2005. Trends in precipitation runoff and in channel vegetation in the usda-ars walnut gulch experimental watershed. Proc. ASCE, World Water and Environmental Resource Congress, May 15-19, Anchorage, AK.
MODELING RESPONSE OF SOIL EROSION AND RUNOFF TO CHANGES IN PRECIPITATION AND COVER 1722 - (Proceedings)
Nearing, M.A., Jetten, V., Baffaut, C., Cerdan, O., Couturier, A., Hernandez, M., Le Bissonnais, Y., Nichols, M.H., Nunes, J.P., Renschler, C.S., Souchere, V., Van Oost, K. 2005. Modeling response of soil erosion and runoff to changes in precipitation and cover. Proc. World Water and Environ. Resources Congress 2005, May 15-19, Ankorage, Alaska.
PATTERNS OF SOIL EROSION AND REDEPOSITION ON LUCKY HILLS WATERSHED, WALNUT GULCH EXPERIMENTAL WATERSHED, ARIZONA - (Peer Reviewed Journal)
Ritchie, J.C., Nearing, M., Nichols, M., Ritchie, C.A. 2005. Patterns of soil movement on Lucky Hills Watershed, Walnut Gulch Arizona. Catena 61(2-3):122-130.
EROSION PREDICTION 1629 - (Book / Chapter)
Nearing, M.A., Renard, K.G., Nichols, M.H., Stone, J.J. 2005. Erosion prediction. In: Stan Trimble (editor). Encyclopedia of Water Science. p. 145-152.
EROSION PREDICTION AND MODELING 1590 - (Book / Chapter)
Nearing, M.A., Renard, K.G., Nichols, M.H. 2005. Erosion prediction and modeling. In: M.G. Anderson, J.J. McDowell (Editors). Encyclopedia of Hydrological Sciences. Vol. 2. New York. John Wiley and Sons. p. 1221-1228.
MODELING RESPONSE OF SOIL EROSION AND RUNOFF TO CHANGES IN PRECIPITATION AND COVER 1647 - (Peer Reviewed Journal)
Nearing, M.A., Jetten, V., Baffaut, C., Cerdan, O., Couturier, A., Hernandez, M., Le Bissonnais, Y., Nichols, M.H., Nunes, J.P., Renschler, C.S., Souchere, V., Van Oost, K. 2005. Modeling response of soil erosion and runoff to changes in precipitation and cover. Catena. 61(2-3):131-154.
TRANSPORTED SEDIMENT IN COMPARISON WITH CHANNEL BED MATERIAL IN LOW-ORDER ALLUVIAL CHANNELS 1666 - (Abstract Only)
Nichols, M.H., Canfield, H.E., Yuill, B.T., Schmeeckle, M. 2004. Transported sediment in comparison with channel bed material in low-order alluvial channels. [Abstract]. EOS Trans. AGU, 85(47), Fall Meet. Suppl., Abstract 4513.
COUPLING SEDIMENT TRANSPORT WITH THE DRYLAND ENVIRONMENT 1665 - (Abstract Only)
Yuill, B.T., Nichols, M.H., Shipek, D.C., Schmeeckle, M. 2004. Coupling sediment transport with the dryland environment. [Abstract]. EOS Trans. AGU, 85(47), Fall Meet. Suppl., Abstract 4653.
EROSION MECHANICAL CONTROL 1662 - (Other)
Nichols, M.H., Renard, K.G., Nearing, M.A., Stone, J.J. 2005. Erosion mechanical control. Online Encyclopedia of Water Science. 1(1). Available: http://www2.dekker.com/sdek/abstract~db=enc~content=a713595839.
INSTRUMENTATION AND RESEARCH AT THE USDA-ARS WALNUT GULCH EXPERIMENTAL WATERSHED 1611 - (Proceedings)
Nichols, M.H., Stone, J.J., Keefer, T.O., Smith, J.R., Moran, M.S., Renard, K.G. 2004. Instrumentation and research at the usda-ars walnut gulch experimental watershed. Proceedings Internat'l. Instrumented Watershed Sym., June 22-25, 2004, Edmonton, Canada, 14 p.
A RADIO FREQUENCY IDENTIFICATION SYSTEM FOR MONITORING COARSE SEDIMENT PARTICLE DISPLACEMENT 1587 - (Peer Reviewed Journal)
Nichols, M.H. 2004. A radio frequency identification system for monitoring coarse sediment particle displacement. Applied Engineering in Agriculture Vol.20(6): 783-787.
ASSESSING SOIL ORGANIC CARBON REDISTRIBUTION WITH FALLOUT CESIUM-137 - (Proceedings)
Ritchie, J.C., McCarty, G.W., Venteris, E.R., Kaspar, T.C., Owens, L.B., Nearing, M. 2004. Assessing soil organic carbon redistribution with fallout 137Cesium. In: Proceedings of Conserving Soil and Waterfor Society: Sharing Solutions, ISCO 2004-13th International Soil Conservation Organization Conference, July 4-9, 2004, Brisbane, Australia. 613:4. 2004 CDROM.
CD-HILLSLOPE EROSION MODEL 1605 - (Other)
Nichols, M.H. 2004. Hillslope erosion model. Southwest Watershed Research Center Web Site. Available: http://www.tucson.ars.ag.gov
CD-SOUTHWEST WATERSHED RESEARCH CENTER ONLINE DATA ACCESS 1606 - (Other)
Nichols, M.H., Anson, E., Stone, J.J., Unkrich, C.L., Keefer, T.O., Wong, J.K. 2004. Southwest Watershed Research Center online data access. Southwest Watershed Research Center Web Site. Available: http://www.tucson.ars.ag.gov
HISTORY OF SMALL WATERSHEDS RESEARCH IN NON-FORESTED WATERSHEDS IN ARIZONA AND NEW MEXICO 1558 - (Peer Reviewed Journal)
Proc, 1st Interagency Conf. on Research in the Watersheds, Oct. 27-30, 2003, Benson, AZ., pp.296-301.
SEDIMENT YIELD FROM SEMIARID WATERSHEDS 1555 - (Proceedings)
Nichols, M.H., Renard, K.G. 2003. Sediment yield from semiarid watersheds. Proceedings First Interagency Conference on Research in the Watersheds. Oct. 27-30, 2003, Benson, AZ., pp. 161-166.
STREAM-BED SCOUR AND FILL IN LOW-ORDER EPHEMERAL STREAM CHANNELS 1557 - (Proceedings)
Powell, D.M., Bazier, R., Nichols, M.H., Wainwright, J., Parsons, A. 2003. Stream-bed scour and fill in low-order ephemeral stream channels. Proceedings First Interagency Conference on Research in the Watersheds. Oct. 27-30, 2003, Benson, AZ. pp.180-184.
AN INTEGRATED SYSTEMS APPROACH TO MODELING SEDIMENT YIELD FROM RANGELAND WATERSHEDS 1305 - (Proceedings) - (20-Jun-00)
AMERICA'S WATERSHEDS: TECHNICAL BASIS FOR NEW STRATEGIES 1297 - (Proceedings) - (20-Jun-00)
THE SPATIAL DISTRIBUTION OF SEDIMENT SOURCES AND SINKS AT THE WATERSHED SCALE IN SEMIARID AREAS (DISSERTATION) 1289 - (Other) - (09-Dec-99)
Information Systems Technology for Assessment of Rangeland Ecosystems 1248 - (Proceedings) - (18-Oct-99)
MODELING SMALL SEMIARID WATERSHEDS IN SUPPORT OF EXPERT SYSTEM DEVELOPMENT 1268 - (Proceedings) - (01-Aug-99)
INTEGRATED INFORMATION SYSTEMS FOR KNOWLEDGE-BASED RESEARCH, TECHNOLOGY DEVELOPMENT, AND TRANSFER. 1265 - (Proceedings) - (01-Aug-99)
SNOW COVER MAPPING USING AVHRR IMAGES AND GIS FOR SNOWMELT RUNOFF PREDICTION 1261 - (Book / Chapter) - (23-Jul-99)
A Hydrologic Method for Sediment Transport and Yield - (Proceedings) - (21-Feb-97)
Last Modified: 3/16/2011
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