Peter Troch

Phone: 
Email: 
patroch@email.arizona.edu
Degrees/Affiliations: 
PhD, Hydrology, University of Ghent, Belgium, 1993
Title & Affiliation: 
Science Director, Biosphere 2, University of Arizona
Professor of Hydrology and Water Resources, Department of Hydrology and Water Resources, University of Arizona

My research aims at a better understanding of catchment scale hydrological processes through advanced measurement, modeling and synthesis methods. The objectives are: (i) Developing, testing and applying advanced observation methods for hydrological fluxes and states at a range of spatial and temporal scales, (ii) Developing hillslope to catchment scale hydrological models for water and solute transport, and (iii) Hydrological synthesis at the catchment scale with special attention to hydrological extremes.

Publications

2017 (Published)

CO2 diffusion into pore spaces limits weathering rate of an experimental basalt landscape . van Haren, J., Dontsova, K., Barron-Gafford, G. A., Troch, P. A., Chorover, J., Delong, S. B., Breshears, D. D., Huxman, T. E., Pelletier J. D., Saleska, S. R., Xeng, X., and Ruiz, J. (2017): Geology 45(3): 203-206.

2016 (Published)

Testing the hybrid-3-D hillslope hydrological model in a controlled environment . Hazenberg, P., Broxton, P., Gochis, D., Niu, G.-Y., Pangle, L. A., Pelletier, J. D., Troch, P. A., and Zeng X. (2016): Water Resources Research 52(2): 1089–1107.

2016 (Published)

Pore water chemistry reveals gradients in mineral transformation across a model basaltic hillslope . Pohlmann, M., Dontsova, K., Root, R., Ruiz, J., Troch, P., and Chorover, J. (2016): Geochemistry, Geophysics, Geosystems 17(6): 2054–2069.

2016 (Published)

Between control and complexity: opportunities and challenges for marine mesocosms . Sagarin, R.D., Adams, J., Blanchette, C.A., Brusca, R.C., Chorover, J., Cole, J.E., Micheli, F., Munguia-Vega, A., Rochman, C.M., Bonine, K., van Haren, J. and Troch, P.A. (2016): Frontiers in Ecology and the Environment 14(7): 389–396.

2016 (Published)

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations . Sengupta, A. Wang, Y., Meira-Neto, A.A., Matos, K.A., Dontsova, K., Root, R., Neilson, J.W., Maier, R.M., Chorover, J., and Troch, P.A. (2016): Journal of Visualized Experiments 115: e54536.

2016 (Published)

Multiresponse modeling of variably saturated flow and isotope tracer transport for a hillslope experiment at the Landscape Evolution Observatory . Scudeler, C., Pangle, L., Pasetto, D., Niu, G.-Y., Volkmann, T., Paniconi, C., Putti, M., and Troch, P. (2016): Hydrology and Earth System Sciences 20(10): 4061-4078.

2016 (Published)

Transit time distributions and StorAge Selection functions in a sloping soil lysimeter with time-varying flow paths: Direct observation of internal and external transport variability . Kim, M., Pangle, L. A., Cardoso, C., Lora, M., Volkmann, T. H. M., Wang, Y., Harman, C. J., and Troch, P. A. (2016): Water Resources Research 52(9): 7105-7129.

2015 (Published)

The Landscape Evolution Observatory: A large-scale controllable infrastructure to study coupled Earth-surface processes . Pangle, L.A., DeLong, S.B., Abramson, N., Adams, J., Barron-Gafford, G.A., Breshears, D.D., Brooks, P.D., Chorover, J., Dietrich, W.E., Dontsova, K., Durcik, M., Espeleta, J., Ferre, T.P.A., Ferriere, R., Henderson, W., Hunt, E.A., Huxman, T.E., Millar, D., Murphy, B., Niu, G-Y., Pavao-Zuckerman, M., Pelletier, J.D., Rasmussen, C., Ruiz, J., Saleska, S., Schaap, M., Sibayan, M., Troch, P.A., Tuller, M., van Haren, J., Zeng, X. (2015): Geomorphology 244: 190-203.

2015 (Published)

Critical zone services: expanding context, constraints, and currency beyond ecosystem services . Field, J. P., Breshears, D.D, Law, D. J., Villegas, J. C., López-Hoffman, L., Brooks, P. D., Chorover, J., Barron-Gafford, G. A., Gallery, R. E., Litvak, M. E., Lybrand, R., McIntosh, J. C., Meixner, T., Niu, G.-Y., Papuga, S. A., Pelletier, J. D., Rasmussen, C. R., and Troch, P.A. (2015): Vadose Zone Journal 14(1).

2015 (Published)

Impact of sensor failure on the observability of flow dynamics at the Biosphere 2 LEO hillslopes . Pasetto, D., Niu, G.-Y., Pangle, L., Paniconi, C., Putti, M., Troch, P. A. (2015): Advances in Water Resources 86: 327-339.

2015 (Published)

A hybrid-3D hillslope hydrological model for use in Earth system models . Hazenberg, P., Fang, Y., Broxton, P., Gochis, D., Niu, G. Y., Pelletier, J. D., Troch, P. A., Zeng, X. (2015): Water Resources Research 51(10): 8218–8239.

2014

Monitoring and Modeling Water, Energy and Carbon Fluxes at the Hillslope Scale in the Landscape Evolution Observatory . Troch, P., Barron-Gafford, G., Dontsova, K., Fang, Y., Niu, G.-Y., Pangle, L., Tuller, M., Van Haren, J. (2014): Abstract H43L-1128 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014

Reactive Transport Modelling of Mineral Evolution in the Biosphere 2 Hillslope Experiment . Wu, R., Niu, G.-Y., Steefel, C., Paniconi, C., Chorover, J., Dontsova, K., Troch, P. (2014): Abstract H53A-0843 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014 (Published)

An integrated modelling framework of catchment‐scale ecohydrological processes: 1.Model description and tests over an energy‐limited watershed . Niu, G.-Y., Paniconi, C., Troch, P. A., Scott, R. L., Durcik, M., Zeng, X., Huxman, T., Goodrich, D. C. (2014): Ecohydrology 7(2): 427–439.

2014

A Terrestrial Integrated Modeling System (TIMS) at a catchment scale – implications for Earth System Modeling . Niu, G.-Y., Fang, Y., Wu, R., Mathias, A., Paniconi, C., Troch, P., Zeng, X., Chorover, J., Monson, R. (2014): Abstract H53J-05 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014 (Published)

An integrated modelling framework of catchment‐scale ecohydrological processes: 2. the role of water subsidy by overland flow on vegetation dynamics in a semi‐arid catchment . Niu, G.-Y., Troch, P. A., Paniconi, C., Scott, R. L., Durcik, M., Zeng, X., Huxman, T., Goodrich, D. C., Pelletier, J. (2014): Ecohydrology 7(2): 815–827.

2014 (Published)

Incipient subsurface heterogeneity and its effect on overland flow generation – insight from a modeling study of the first experiment at the Biosphere 2 Landscape Evolution Observatory . Niu, G.-Y., Pasetto, D., Scudeler, C., Paniconi, C., Putti, M., Troch, P. A., DeLong, S. B., Dontsova, K., Pangle, L., Breshears, D. D., Chorover, J., Huxman, T. E., Pelletier, J., Saleska, S. R., and Zeng, X. (2014): Hydrology and Earth System Sciences 18(5): 1873-1883.

2014

Flow and transport modeling of a tracer isotope experiment at B2 LEO using integrated and distributed multisensor observation data . Scudeler, C., Pangle, L., Pasetto, D., Niu, G-Y., Paniconi, C., Putti, M., Troch, P. (2014): Abstract H13E-1165 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014

Rapid CO2 consumption during incipient weathering of a granular basaltic hillslope in the Landscape Evolution Observatory, Biosphere 2 . Ruiz, J., Van Haren, J., Dontsova, K., Barron-Gafford, G., Troch, P., Chorover J. (2014): Abstract V23A-4778 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2014 (Published)

Hillslope-scale experiment demonstrates the role of convergence during two-step saturation . Gevaert, A.I., Teuling, A.J., Uijlenhoet, R., DeLong, S.B., Huxman, T.E., Pangle, L.A., Breshears, D.D., Chorover, J., Pelletier, J.D., Saleska, S.R, Zeng, X., Troch, P.A. (2014): Hydrology and Earth System Sciences 18: 3681-3692.

2014

Representing surface and subsurface hydrology at hyperresolution for Earth system models: Development of a hybrid 3-D approach . Hazenberg, P., Broxton, P., Brunke, M., Gochis, D., Lawrence, D., Niu, G.-Y., Pelletier, J., Troch, P., Zeng, X. (2014): Abstract GC33A-0497 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.

2013

Precipitation pulse dynamics of carbon sequestration and efflux in highly weatherable soils . Barron-Gafford, G., Minor, R., Van Haren, J.L., Dontsova, K., Troch, P.A. (2013): Abstract EP13C-0879 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec.

2013

Hydrologic discovery through controlled experimentation, data analysis, and numerical and analytical modeling at the Landscape Evolution Observatory (Invited) . Troch, P. A., Gevaert, A., Smit, Y., Niu, G.-Y., Nakolan, L., Kyzivat, E. (2013): Abstract H11C-1167 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec.

2013

Breakthroughs in Lab Experiments . Peter Troch (2013): GIWS Distinguished Lecture Series.

2013 (Published)

Coevolution of nonlinear trends in vegetation, soils, and topography with elevation and slope aspect: A case study in the sky islands of southern Arizona . Pelletier, J. D., Barron-Gafford, G. A., Breshears, D. D., Brooks, P. D., Chorover, J., Durcik, M., Harman, C. J., Huxman, T. E., Lohse, K. A., Lybrand, R., Meixner, T., McIntosh, J. C., Papuga, S. A., Rasmussen, C., Schaap, M., Swetnam, T. L., and Troch, P. A. (2013): Journal of Geophysical Research: Earth Surface 118: 741-758.

2010 (Published)

Hysteresis of soil moisture spatial heterogeneity and the “homogenizing” effect of vegetation . Ivanov, V.Y.,Fatichi, S., Jenerette, G.D., Espeleta, J.F., Troch, P.A., Huxman, T.E. (2010): Water Resources Reasearch 46(9): W09521.

2009 (Published)

The Hills are Alive: Interdisciplinary Earth Science at Biosphere 2 . Huxman, T., Troch, P., Chorover, J., Breshears, D.D., Saleska, S., Pelletier, J., Zeng, X. (2009): EOS 90(14): 120.

2009 (Published)

Hillslope hydrology under glass: Confronting fundamental questions of soil-water-biota co-evolution at Biosphere 2 . Hopp, L., Harman, C., Desilets, S. L.E., Graham, C. B., McDonnell, J. J., Troch, P. A. (2009): Hydrology and Earth System Sciences 13: 2105–2118.