(PhD students and postdoctoral scholars in the group are underlined.)

• Shrestha, P., Sulis, M., Simmer, C. and S. Kollet, 2018, Effects of horizontal grid resolution on evapotranspiration partitioning using TerrSysMP, J. Hydro, 557, 910-915.

• Burstedde, C., Fonseca, J. A. and S. Kollet 2018, Enhancing speed and scalability of the ParFlow simulation code, Computational Geosciences, 22(1), 347-361.

• Zhang, H., Kurtz, W., Kollet, S., Vereecken, H., and H.-J. HendricksFranssen, 2018, Comparison of different assimilation methodologies of groundwater levels to improve predictions of root zone soil moisture with an integrated terrestrial system model, Advances in Water Resources, 111, 224-238.

• Baatz, D., W.Kurtz, H-J. Hendricks-Franssen, H. Vereecken, and S. Kollet, 2017, Catchment tomography - An approach for spatial parameter estimation, Advances in Water Resources, 107, 147-159.

• McGovern, S., S. Kollet, C. Bürger, R. Schwede and O. Podlaha, 2017, Novel Basin Modelling Concept for Simulating Deformation from Mechanical Compaction Using Level Sets, Comput. Geosci., 21(5-6), 835-848.

• Sulis, M., Williams, J.L., Shrestha, P., Diederich, M., Simmer, C., S. Kollet, and R.M. Maxwell, 2017, Coupling groundwater, vegetation, and atmospheric processes: a comparison of two integrated models, J. of Hydrometeorology, 18(5), 1489-1511.

• Gebler, S., Hendricks-Franssen, H.-J., Kollet, S.J., Qu, W., Vereecken, H., 2017, High resolution modelling of soil moisture patterns with TerrSysMP: A comparison with sensor network data, J. of Hydrology, 547, 309-331.

• Kollet, S., Sulis, M., Maxwell, R., Paniconi, C., Putti, M., Bertoldi, G., Coon, E. T., Cordano, E., Endrizzi, S., Kikinzon, E., Mouche, E., Mügler, C., Park, Y.-J., Refsgaard, J. C., Stisen, S. and Sudicky, E., 2017, The integrated hydrologic model intercomparison project, IH-MIP2: A second set of benchmark results to diagnose integrated hydrology and feedbacks. Water Resour. Res., 53, doi:10.1002/2016WR019191

• Keune, J., F. Gasper, K. Goergen, A. Hense, P. Shrestha, M. Sulis, and S. Kollet, 2016, Studying the influence of groundwater representations on land surface-atmosphere feedbacks during the European heat wave in 2003, J. Geophys. Res. Atmos., 121, 13, 301–13,325, doi:10.1002/2016JD025426. doi:10.1002/2016JD025426.

• Rahman, M., M. Sulis, and S.J. Kollet, 2016, Evaluating the Dual-Boundary Forcing Concept in Subsurface-Land Surface Interactions of the Hydrological Cycle, Hydrological Processes, 30, 1563–1573.

• Kollet, S. J., 2016, Technical note: Inference in hydrology from entropy balance considerations, Hydrol. Earth Syst. Sci., 20(7), 2801-2809.

• Jefferson, J., I. Ferguson, R.M. Maxwell, and S.J. Kollet, 2016, Effects of Root Water Uptake Formulation on Simulated Water and Energy Budgets at Local and Basin Scales, Environmental Earth Sciences, 75:316.

• Kurtz, W., He, G., Kollet, S., Maxwell, R., Vereecken, H., and H.-J. Hendricks Franssen, 2016, TerrSysMP-PDAF (version 1.0): a modular high-performance data assimilation framework for an integrated land surface–subsurface model, Geosci. Model Dev., 9(4), 1341-1360.

• Fang, Z., H. Bogena, S. Kollet, and H. Vereecken, 2016, Scale dependent parameterization of soil hydraulic conductivity in 3D simulation of hydrological processes in a forested headwater catchment, J. of Hydrology, 536, 365-375.

• Koch, J., Cornelissen, T., Fang, Z., Bogen, H., Diekkrüger, B., Kollet, S., and S. Stisen, 2016, Inter-comparison of three distributed hydrological models with respect to seasonal variability of soil moisture patterns at a small forested catchment, J. of Hydrology, 533, 234–249.

• Maxwell, R.M., Condon, L.E. , Kollet, S.J., Maher, K., Haggerty, R., and Forrester, M.M., 2016 The imprint of climate and geology on the residence times of groundwater. Geophysical Research Letters, 43, 701–708.

• Shrestha, P., M. Sulis, C. Simmer, and S. Kollet, 2015, Impacts of grid resolution on surface energy fluxes simulated with an integrated surface-groundwater flow model, Hydrol. Earth Syst. Sci., 19, 4317-4326.

• Fang, Z., H. Bogena, S. Kollet, J. Koch, and H. Vereecken, 2015, Spatio-temporal validation of long-term 3D hydrological simulations of a forested catchment using empirical orthogonal functions and wavelet coherence analysis, J. of Hydrology, 529, 1754-1767.

• Rahman, M., M. Sulis, and S.J. Kollet, 2015, The subsurface-land surface-atmosphere connection under convective conditions, Advances in Water Resour.,83, 240-249.

• Prein, A. W. Langhans, G. Fosser, A. Ferrone, N. Ban, K. Goergen, M. Keller, M. Tölle, O. Gutjahr, F. Feser, E. Brisson, S. Kollet, J. Schmidli, N. P. M. van Lipzig, R. Leung, 2015, A review on regional convection-permitting climate modeling: demonstrations, prospects, and challenges, Rev. Geophys., 53, doi:10.1002/2014RG000475.

• Vereecken, H., J. A.Huisman, H. J.Hendricks Franssen, N.Brüggemann, H. R.Bogena, S.Kollet, M.Javaux, JKruk, and J.Vanderborght, 2015, Soil hydrology: Recent methodological advances, challenges, and perspectives, Water Resour. Res., 51, doi:10.1002/2014WR016852.

• Sulis, M., M. Langensiepen, A. Schickling, C. Simmer, and S. J. Kollet, 2015, Evaluating the influence of plant-specific physiological parameterizations on the partitioning of land surface energy fluxes. J. of Hydrometeorology, 16(2), 517-533.

• Maxwell, R.M., L.E. Condon, and S.J. Kollet, 2015, A high-resolution simulation of groundwater and surface water over most of the continental US with the integrated hydrologic model ParFlow v3, Geosci. Model Dev., 8, 923-937.

• Simmer, C., I. Thiele-Eich, M. Masbou, W. Amelung, S. Crewell, B. Diekkrueger, F. Ewert, H.-J. Hendricks Franssen, A. J. Huisman, A. Kemna, N. Klitzsch; S. Kollet, M. Langensiepen, U. Loehnert, M. Rahman, U. Rascher, K. Schneider, J. Schween, Y. Shao, P. Shrestha, M. Stiebler, M. Sulis, J. Vanderborght, H. Vereecken, J. van der Kruk, T. Zerenner, and G. Waldhoff, 2014, Monitoring and Modeling the Terrestrial System from Pores to Catchments - the Transregional Collaborative Research Center on Patterns in the Soil-Vegetation-Atmosphere System. Accepted for publication in Bulletin of the American Meteorological Society

• Bierkens, M.F.P., V.A. Bell, P. Burek, N. Chaney, N.L. Condon, C.H. David, A. de Roo, P. Döll, N. Drost, J.S. Famiglietti, M. Flörke, D.J. Gochis, P. Houser, R. Hut, J. Keune, S. Kollet, R. Maxwell, J.T. Reager, L. Samaniego, E. Sudicky, E.H. Sutanudjaja, N. van de Giesen, H. Winsemius, and E.F. Wood, 2014, Hyper-resolution global hydrological modelling: what's next?: “Everywhere and locally relevant”, DOI: 10.1002/hyp.10391.

• Rahman, M., M. Sulis and S.J. Kollet, 2014, The concept of dual-boundary forcing in land surface-subsurface interactions of the terrestrial hydrologic and energy cycles, Water Resour. Res., 50(11), 8531-8548.

• Gasper, F., K. Goergen, P. Shrestha, M. Sulis, J. Rihani, M. Geimer and S.J. Kollet, 2014, Implementation and scaling of the fully coupled Terrestrial Systems Modeling Platform (TerrSysMP v1.0) in a massively parallel supercomputing environment – a case study on JUQUEEN (IBM Blue Gene/Q), Geosci. Model Dev., 7, 2531-2543.

• Shrestha, P., M. Sulis, M. Masbou, S.J. Kollet, C. Simmer, 2014, A scale-consistent Terrestrial Systems Modeling Platform based on COSMO, CLM and ParFlow, Monthly Weather Review, 142, 3466–3483.

• Maxwell, R.M., Putti, M., Meyerhoff, S.B., Delfs, J.-O., Ferguson, I.M., Ivanov, V., Kim, J., Kolditz, O., Kollet, S.J., Kumar, M., Lopez, S., Niu, J., Paniconi, C., Park, Y.-J., Phanikumar, M.S., Shen, C., Sudicky. E.A., and Sulis, M., 2014, Surface-subsurface model intercomparison: A first set of benchmark results to diagnose integrated hydrology and feedbacks. Water Resources Research, doi:10.1002/2013WR013725.

• Wood, E. F., J. K. Roundy, T. J. Troy, L.P.H. van Beek, M. F.P. Bierkens, E. Blyth, A.P.J. De Roo, P. Doell, J. S. Famiglietti, D. J. Gochis, N. Van de Giesen, P. R. Houser, P. R. Jaffe, S. J. Kollet, B. Lehner, D. P. Lettenmaier, C. D. Peters-Lidard, M. Sivapalan, J. Sheffield, A. Wade, and P. Whitehead, 2012, Reply to “Defining Grand Challenges in hydrology: a comment on Wood et al (2011) Hyperresolution global land surface modeling: Meeting a grand challenge for monitoring Earth's terrestrial water” by K. J. Beven and H. L. Cloke, Water Resour. Res., doi:10.1029/2011WR011202, Volume 48, p. 334-336.

• Buerger, C., S.J. Kollet, J. Schumacher, D. Boesel, 2012, Introduction of a Web service for cloud computing with the integrated hydrologic simulation platform ParFlow, Computers & Geosciences, Volume 48, p. 334-336.

• Wood E.F., J.K. Roundy, T.J. Troy, R. van Beek, M. Bierkens, E. Blyth, A. de Roo, P. Döll, M. Ek, J. Famiglietti, D. Gochis, N. van de Giesen, P. Houser, P.R. Jaffé, S.J. Kollet, B. Lehner, D.P. Lettenmaier, C. Peters-Lidard, M. Sivapalan, J. Sheffield, A. Wade, P. Whitehead, 2011, Hyper-Resolution Global Land Surface Modeling: Meeting a Grand Challenge for Monitoring Earth’s Terrestrial Water, Water Resour. Res., 47, W05301, doi:10.1029/2010WR010090.

• Vereecken, H., Kollet S.J., Simmer C., 2010, Patterns in soil vegetation atmosphere systems: monitoring, modeling, and data assimilation, Vadose Zone J., 9, 821-827.

• Schwinger, J., Kollet S.J., Hoppe C., Elbern H., 2010, Tangent linear and non-linear sensitivity of modeled latent heat fluxes to initial values and parameters of a SVAT model, Vadose Zone J., 9, 984-1001.

• Zolina O., Simmer C., Sergey K.G., Kollet S.J., 2010, Change in structure of precipitation over Europe: longer wet periods leading to stronger extremes, Geophys. Res. Letters, 37, L06704, 1-5.

• Kollet S.J., Maxwell R.M., Woodward C.S., Smith S., Vanderborght J., Vereecken H., Simmer C., 2010, Proof-of-concept of regional scale hydrologic simulations at hydrologic resolution utilizing massively parallel computer resources, Water Resour. Res., 46, W04201, doi:10.1029/2009WR008730, 1-7.

• Sulis M., Meyerhoff S., Paniconi C., Maxwell R., Putti M., Kollet S., 2010, A comparison of two physics-based numerical models for simulating surface water–groundwater interactions, Advances in Water Resour., 33(4), 456-467.

• Graf A., Schüttemeyer D., Geiss H., Knaps A., Möllemann-Coers M., Schween J.H., Kollet S.J., Neininger B., Herbst M., Vereecken H., 2010, Boundedness of turbulent temperature probability distributions, and their relation to the vertical profile in the convective boundary layer, Boundary Layer Met., 134(3), 459-486.

• Kollet, S.J., 2009 (invited), Influence of soil heterogeneity on evapotranspiration under shallow water table conditions: transient, stochastic simulations, Environ. Res. Letters, 4, 035007, 9pp.

• Frei S., Fleckenstein J.H., Kollet S.J., Maxwell R.M., 2009, Patterns and dynamics of river-aquifer exchange with variably-saturated flow using a fully-coupled model, J. of Hydrology, 375(3-4), 383-393.

• Maxwell R.M., Tompson A.F.B., Kollet S.J., 2009, A serendipitous, long-term infiltration experiment: Water and tritium circulation beneath the CAMBRIC Trench at the Nevada Test Site, J. Cont. Hydrology, 108, 12-28.

• Kollet S.J., Cvijanovic I., Schüttemeyer D., Maxwell R.M., Moene A.F., Bayer P., 2009, The influence of rain sensible heat, subsurface heat convection and the lower temperature boundary condition on the energy balance at the land surface, Vadose Zone J., 8(4), doi:10.2136/vzj2009.0005.

• Maxwell R.M., Kollet S.J., 2008, The interdependence of groundwater dynamics and land-energy feedbacks under climate change, Nature Geoscience, doi:10.1038/ngeo315.

• Kollet S.J., Maxwell R.M., 2008, Demonstrating fractal scaling of baseflow residence time distributions using a fully coupled groundwater and land surface model, Geophys. Res. Letters, 35, L07402, doi:10.1029/2008GL033215.

• Kollet, S.J., and R. M. Maxwell, 2008, Capturing the influence of groundwater dynamics on land surface processes using an integrated, distributed watershed model, Water Resour. Res., 44(W02402), doi:10.1029/2007WR006004.

• Maxwell R.M., Kollet S.J., 2008, Quantifying the effects of three-dimensional subsurface heterogeneity on Hortonian runoff processes using a coupled numerical, stochastic approach, Advances in Water Resour., 31(5), 807-817.

• Maxwell R.M., Chow F.K., Kollet S.J., 2007. The groundwater-land-surface-atmosphere connection: Soil moisture effects on the atmospheric boundary layer in fully-coupled simulations, Advances in Water Resour., 30(12), 2447-2466.

• Kollet S.J., Zlotnik V.A. 2007, Evaluation of the streambed leakage concept in analytical models using data from three pumping tests, Hydrogeology J., 15(6), 1051-1062.

• Kollet S.J., Maxwell R.M., 2006, Integrated surface-groundwater flow modeling: a free-surface overland flow boundary condition in a parallel groundwater flow model, Advances in Water Resour., 29, 945-958.

• Kollet S.J., Zlotnik, V.A. 2005, Influence of aquifer heterogeneity and return flow on pumping test data interpretation, J. of Hydrology, 300(1-4), 267-285.

• Kollet S.J., Zlotnik V.A., 2005, Reply to comment by H. Lough on the paper ”Stream depletion predictions using data from a pumping test in a heterogeneous stream-aquifer system (a case study from the Great Plains, USA)”. J. of Hydrology, 313, 149-152.

• Kollet S.J., Zlotnik V.A., 2003. Stream depletion predictions using data from a pumping test in a heterogeneous stream-aquifer system (a case study from the Great Plains, USA). J. of Hydrology, 281(1 2), 96-114.

• Kollet S.J., Zlotnik V.A., Ledder G., 2002, Discussion of Paper “A stream depletion field experiment”, by Bruce Hunt, Julian Weir, Bente Clausen. In Ground Water 39(2): 283-289; Ground Water, 40(4), 488-489.

• Vanderborght, J.; Ippisch, O.; Blatt, M.; Kollet, S.; Rahman, S.; Aljazzar, T.; Maxwell, R.; Schröder, N.; Javaux, M.; Hendricks-Franssen, H.-J.; Kurtz, W.; van der Kruk, J.; Oberröhrmann, M.; Klotzsche, A.; Vereecken, H., 2012, Simulation of Processes in Terrestrial Systems, NIC Symposium 2012 - Proceedings, edited by K. Binder, G. Münster, M. Kremer, John von Neumann Institute for Computing, 2012, NIC Series Vol. 45. - 978-3-89336-758-0, S. 303 - 311.

• Kollet S.J, Schumacher J., Bürger C., Bösel D., 2011. Cloud computing with ParFlow: Introduction of a newly developed Web interface, in Proceedings of the conference MODFLOW and More 2011: Integrated Hydrologic Modeling, Volume 1, International Ground Water Modeling Center, Colorado School of Mines, Golden, Colorado, 80401.

• Chow F.K., Kollet S.J., Maxwell R.M., Duan Q., 2006, Effects of soil moisture heterogeneity on boundary layer flow with coupled groundwater, land-surface, and mesoscale atmospheric modeling. Paper 5.6, 17th Symposium on Boundary Layers and Turbulence, American Meteorological Society.

• Maxwell R. M., Tompson A. F. B., Carle S. F., Zavarin M., Kollet S. J, 2006, A Serendipitous, Long-term Infiltration Experiment: Water and Radionuclide Circulation Beneath the Cambric Trench at the Nevada Test Site. Computational Methods in Water Resources XVI Meeting, Copenhagen, June, 2006.

• Kollet S.J., Zlotnik V.A., Woodward D., 2002, A field and theoretical study on stream-aquifer interactions under pumping conditions in the Great Plains, Nebraska. American Water Res. Ass. 2002 Summer Specialty Conference Proceedings, 29-34.

• Hendricks-Franssen, H.-J., W. Kurtz, M. Pondkule, H. Zhang, B. Naz, H. Vereecken, K. Goergen, S. Kollet, 2018, Data Assimilation with the Integrated Terrestrial Systems Modeling Platform, TerrSysMP-PDAF, InSide Innovative Sumpercomputing in Deutschland, 16(1), pp. 117.

• Wagner, S. and S. Kollet, 2017, Gekoppelte Modellsysteme: Berücksichtigung von lateralen terrestrischen Wasserflüssen, Promet - Meteorologische Fortbildung Heft 99, 76-85.

• Tompson, A., D. Zafer, J. Moran, D. Mason, J. Wagoner, S. Kollet, K. Mansoor, P. McKereghan, 2008, Groundwater availability within the Salton Sea Basin, Final Report, Lawrence Livermore Natl. Lab., L-TR-400426