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Jens Christian Refsgaard
Jens Christian Refsgaard
Forskningsprofessor
Afdeling
Hydrologi
Telefon
30709830
Publikationer
  • Larsen, M.A.D., Refsgaard, J.C., Jensen, K.H., Butts, M.B., Stisen, S. & Mollerup, M. 2016: Calibration of a distributed hydrology and land surface model using energy flux measurement. Agricultural and Forest Meteorology 217, 74-88.
  • Sonnenborg, T.O., Seifert, D. & Refsgaard, J.C. 2015: Climate model uncertainty versus conceptual geological uncertainty in hydrological modeling. Hydrology and Earth System Sciences 19, 3891-3901.
  • Jørgensen, L.F., Hinsby, K., Refsgaard, J.C., Larsen, F., Klitten, K., Thorling, L., Søndergaard, V.H., Brüsch, W., Postma., D. & van der Keur, P. 2015: From arsenic in groundwater in SE Asia to implications of climate change in Danish catchments - A brief review of current and past groundwater research in Denmark. In: Groundwater research. European Geologist 40, 9-12.
  • Marker, P.A., Foged, N., He, X., Christiansen, A.V., Refsgaard, J.C., Auken, E. & Bauer-Gottwein, P. 2015: Performance evaluation of groundwater model hydrostratigraphy from airborne electromagnetic data and lithological borehole logs. Hydrology and Earth System Sciences 19, 3875-3890.
  • He, X., Højberg, A.L., Jørgensen, F. & Refsgaard, J.C. 2015: Assessing hydrological model predictive uncertainty using stochastically generated geological models. Hydrological Processes 29(19), 4293-4311.
  • Zhang, D., Madsen, H., Ridler, M.E., Refsgaard, J.C. & Jensen, K.H. 2015: Impact of uncertainty description on assimilating hydraulic head in the MIKE SHE distributed hydrological model. Advances in Water Resources 86, 400-413.
  • Seaby, L., Refsgaard, J.C., Sonnenborg, T.O. & Højberg, A.L. 2015: Spatial uncertainty in bias corrected climate change projections and hydrogeological impacts for Denmark. Hydrological Processes 64, 39-54.
  • De Schepper, G., Therrien, R., Refsgaard, J.C. & Hansen, A.L. 2015: Simulating coupled surface and subsurface water flow in a tile-drained agricultural catchment. Journal of Hydrology 521, 374-388.
  • Rasmussen, J., Madsen, H., Jensen, K.H. & Refsgaard, J.C. 2015: Data assimilation in integrated hydrological modelling using ensemble Kalman filtering:evaluating the effect of ensemble size and localization on filter performance. Hydrology and Earth System Sciences 19, 2999-3013.
  • Karlsson, I.B., Sonnenborg, T.O., Seaby, L.P., Jensen, K.H. & Refsgaard, J.C. 2015: Effect of a high-end CO2-emission scenario on hydrology. Climate Research 64, 39-54.
  • Kidmose, J., Troldborg, L., Refsgaard, J.C. & Bischoff, N. 2015: Coupling of a distributed hydrological model with an urban storm water model for impact analysis of forced infiltration. Journal of Hydrology 525, 506-520.
  • Butts, M., Drews, M., Larsen, M.A.D., Lerer, S., Rasmussen, S.H., Gross, J., Overgaard, J., Refsgaard, J.C. & Christensen, J.H. 2014: Embedding complex hydrology in the regional system climate system ¿ dynamic coupling across different modelling domains. Advances in Water Resources 74, 166-184.
  • Larsen, M.A.D., Refsgaard, J.C., Drews, M., Butts, M.B., Jensen, K.H., Christensen, J.H. & Christensen, O.B. 2014: Results from a full coupling of the HIRHAM regional climate model and the MIKE SHE hydrological model for a Danish catchment. Hydrology and Earth System Science 18, 4733-4749.
  • Hansen, A.L., Christensen, B.S.B., Ernstsen, V., He, X. & Refsgaard, J.C. 2014: A concept for estimating depth of the redox interface for catchment-scale nitrate modelling in a till area in Denmark. Hydrogeology Journal 22(7), 1639-1655.
  • Hansen, A.L., Gundermand, D., He, X. & Refsgaard, J.C. 2014: Uncertainty assessment of spatially distributed nitrate reduction potential in groundwater using multiple geological realizations. Journal of Hydrology 519, 225-237.
  • Karlsson, I., Sonnenborg, T.O., Refsgaard, J.C. & Jensen, K.H. 2014: Evaluating the influence of long term historical climate change on catchment hydrology - using drought and flood indices. Hydrological Earth System Sciences 18, 595-610.
  • Hoang, L., van Griensven, A., van der Keur, P., Refsgaard, J.C., Troldborg, L., Nilsson, B. & Mynett, A. 2014: Comparison and Evaluation of Model Structures for the Simulation of Pollution Fluxes in a Tile-Drained River Basin. Journal of Environmental Quality 43(1), 86-99.
  • Koch, J., He, X., Jensen, K.H. & Refsgaard, J.C. 2014: Challenges to conditioning a stochastical geological model of a heterogeneous glacial aquifer to a comprehensive soft dataset. Hydrology and Earth System Sciences 18, 2907-2923.
  • He, X., Koch, J., Sonnenborg, T.O., Jørgensen, F., Schamper, C. & Refsgaard, J.C. 2014: Transition probability- based stochastic geological modeling using airborne geophysical data and borehole data. Water Resources Research 50(4), 3147-3169.
  • Stisen, S., Sonnenborg, T.O. & Refsgaard, J.C. 2013: Investigating the importance of groundwater for near surface flux and state simulation through a multi-constraint analysis of a complex surface-subsurface-atmosphere model. In: IAHS Publication. Climate and Land Surface Changes in Hydrology. Proceedings of H01, IAHS-IAPSO-IASPEI Assembly, Gothenburg, Sweden, July 2013 359, 146-151.
  • van der Keur, P., Hansen, J.R., Hansen, S. & Refsgaard, J.C., 2008: Uncertainty in sumulation of nitrate leaching at field and catchment scale within the Odense River basin. Vadose Zone Journal 7, 10-21.
  • Olsen, M., Troldborg, L., Henriksen, H.J., Conallin, J., Refsgaard, J.C. & Bøgh, E. 2013: Evaluation of a typical hydrological model in relation to environmental flows. Journal of Hydrology 507, 52-62.
  • van der Keur, P., Henriksen, H.J., Refsgaard, J.C., Brugnach, M., Pahl-Wostl, C., DeWulf, A. & Buiteveld, H. 2008: Identification of major sources of uncertainty in current IWRM practice. Illustrated for the Rhine Basin. Water Resources Management 22, 1677-1708.
  • Andersen, J., Refsgaard, J.C. & Jensen, K.H., 2001: Distributed hydrological modelling of the Senegal River basin - model construction and validation. Journal of Hydrology 247, 200-214.
  • Thorsen, M., Refsgaard, J.C., Hansen, S., Pebesma, E., Jensen, J.B. & Kleeschulte, S. 2001: Assessment of uncertainty in simulation of nitrate leaching to aquifers at catchment scale. Journal of Hydrology 242, 210-227.
  • Refsgaard, J.C. & Hansen, E. 1982: A distributed groundwater/surface water model for the Suså catchment. Part 2: Simulation of streamflow depletion due to groundwater abstraction. Nordic Hydrology 13, 311-322.
  • Refsgaard, J.C. & Hansen, E. 1982: A distributed groundwater/surface water model for the Suså catchment. Part 1: Model description. Nordic Hydrology 13, 299-310.
  • Refsgaard, J.C. & Hansen, E. 1976: Economic value of low flow data. Nordic Hydrology 7, 57-72.
  • He, X., Sonnenborg, T.O., Refsgaard, J.C., Vejen, F. & Jensen, K.H. 2013: Evaluation of the value of radar QPE data and rain gauge data for hydrological modeling. Water Resources Research 49(9), 5989-6005.
  • Qin, H., Cao, G., Kristensen, M., Refsgaard, J.C., Rasmussen, M.O., He, X., Liu, J., Shu, Y. & Zheng, C. 2013: Integrated hydrological modeling of the North China Plain and implicatins for sustainable water management. Hydrology and Earth System Science 17, 3759-3778.
  • Randall, M.T., Troldborg, L., Refsgaard, J.C. & Kidmose, J.B 2013: Assessing urban groundwater table response to climate change and increased stormwater infiltration. In: Bennike, O., Garde, A.A, & Watt, W.S.(eds): Review of Survey Activities 2012. Geological Survey of Denmark and Greenland Bulletin 28, 33-36.
  • Larsen, M.A.D., Theijl, P., Christensen, J.H., Refsgaard, J.C. & Jensen, K.H. 2013: On the role of domain size and resolution in the simulations with the HIRHAM region climate model. Climate Dynamics 40, 2903-2918.
  • Hansen, A.L., Refsgaard, J.C., Christensen, B.S.B. & Jensen, K.H. 2013: Importance of including small-scale tile drain discharge in the calibration of a coupled groundwater-surface water catchment model. Water Resources Research 49, 585-603.
  • Kidmose, J., Refsgaard, J.C., Troldborg, L., Seaby, L.P. & Escriv, M.M. 2013: Climate change impact on groundwater levels:ensemble modelling of extreme values. Hydrology and Earth System Sciences 17, 1619-1634.
  • Seaby, L.P., Refsgaard, J.C., Sonnenborg, T.O., Stisen, S., Christensen, J.H. & Jensen, K.H. 2013: Assessment of robustness and significance of climate change signals for an ensemble of distribution-based scaled climate projections. Journal of Hydrology 486, 479-493.
  • Refsgaard, J.C., Arnbjerg-Nielsen, K., Drews, M., Halsnæs, K., Jeppesen, E., Madsen, H., Markandya, A., Olesen, J.E., Porter, J.R. & Christensen, J.H. 2013: The role of uncertainty in climate change adaptation strategies ¿ A Danish water management example. Mitigation and Adaptation Strategies for Global Change 18(3), 337-359.
  • Refsgaard, J.C., Storm, B. & Clausen, T. 2012: Physically-based modelling, good modelling practice including uncertainty ¿ reply to Ewen et al. (2012). Hydrology Research 43(6), 948-950.
  • Rasmussen, S.H., Christensen, J.H., Drews, M., Gochis, D.J. & Refsgaard, J.C. 2012: Spatial scale characteristics of precipitation simulated by regional climate models and the implications for hydrological modelling. Journal of Hydrometeorology 13(6), 1817-1835.
  • Stisen, S., Højberg, A.L., Troldborg, L., Refsgaard, J.C., Christensen, B.S B., Olsen, M. & Henriksen, H.J. 2012: On the importance of appropriate precipitation gauge catch correction for hydrological modelling at mid to high latitudes. Hydrology and Earth System Sciences 16, 4157-4176.
  • Seifert, D., Sonnenborg, T.O., Refsgaard, J.C., Højberg, A.L. & Troldborg, L. 2012: Assessment of hydrological model predictive ability given multiple conceptual geological models. Water Resources Research 48, ?.
  • Refsgaard, J.C., Christensen, S., Sonnenborg, T.O., Seifert, D., Højberg, A.L. & Troldborg, L. 2012: Review of strategies for handling geological uncertainty in groundwater flow and transport modelling. Advances in Water Resources 36, 36-50.
  • Rasmussen, S.H., Butts, M.B., Lerer, S.M. & Refsgaard, J.C. 2012: Parameterisation and scaling of teh land surface model for use in a coupled climate-hydrological model. Journal of Hydrology 426, 63-78.
  • He, X., Refsgaard, J.C., Sonnenborg, T.O., Vejen, F. & Jensen, K.H. 2011: Statistical analysis of the impact of radar rainfall uncertainties on water resources modeling. Water Resources Research 47, W09526.
  • Stisen, S., McCabe, M.F., Refsgaard, J.C., Lerer, S. & Butts, M.B. 2011: Model parameter analysis using remotely sensed pattern information in a multi-constraint framework. Journal of Hydrology 409, 337-349.
  • Stisen, S., Sonnenborg, T.O., Højberg, A.L., Troldborg, L. & Refsgaard, J.C. 2011: Evaluation of climate input biases and water balance issues using a coupled surface-subsurface model. Vadose Zone Journal 10, 37-53.
  • van der Keur, P., Brugnach, M., Dewulf, A., Refsgaard, J.C., Zorilla, P., Poolman, M., Isendahl, N., Raadgever, G.T., Henriksen, H.J., Warmink, J.J., Lamers, M. & Mysiak, J. 2010: Identifying Uncertainty Guidelines for Supporting Policy Making inWater Management Illustrated for Upper Guadiana and Rhine Basins. Water Resources Management 24(10), 3901-3937.
  • Refsgaard, J.C. & Hansen, J.C. 2010: A good-looking catchment can turn into a modeller's nightmare. Hydrological Sciences Journal 55(6), 899-912.
  • Refsgaard, J.C., Højberg, A.L., Møller, I., Hansen, M. & Søndergaard, V. 2010: Groundwater Modeling in Integrated Water Resources Management - Visions for 2020. Ground Water 48(5), 633-648.
  • Refsgaard, J.C., Storm, B. & Clausen, T. 2010: Système Hydrologique Europeén (SHE) - Review and perspectives after 30 years development in distributed physically-based hydrological modelling. Hydrology Research 41(5), 355-377.
  • Roosmalen, L.v., Christensen, J.H., Butts, M., Jensen, K.H. & Refsgaard, J.C. 2010: Quantifying climate change signals for Denmark and assessing the robustness of hydrological impact studies. Journal of Hydrology 380, 406-419.
  • Henriksen, H.J., Refsgaard, J.C., Højberg, A.L., Ferrand, N., Gijsbers, P. & Scholten, H. 2009: Harmonised principles for public participation in quality assurance of integrated water resources modelling. Water Resource Management 23, 2539 - 2554.
  • Hansen, J.R., Refsgaard, J.C., Ernstsen, V., Hansen, V.,Styczen, M. & Poulsen, R.N. 2009: An integrated and physically based nitrogen cycle catchment model. Hydrology Research 40(4), 347-363.
  • Rosenbom, A.E., Therrien, R., Refsgaard, J.C., Jensen, K.H., Ernstsen, V. & Klint, K.E.S. 2009: Numerical analysis of water and solute transport in variably-saturated fractured clayey till. Journal of Contaminant Hydrology 104, 137-152.
  • Refsgaard, J.C., Jørgensen, L.F., Højberg, A.L., Demetriou, C., Onorati, G. & Brandt, G. 2008: Joint modelling and monitoring of aquatic ecosystems. In: Quevauviller, P., Borchers, U., Thompson, K.C. & Simonart, T. (eds): The Water Frame Directive - Ecological and chemical status monitoring. The Water Ouality Measurements Series, 166-180, John Wiley and Sons, Ltd.. European Commission. Brussels, Belgium.
  • Jørgensen, L.F., Refsgaard, J.C. & Højberg, A.L. 2008: From science to practice in implementing the European Union's Water Framework Directive. In: Bennike, O. & Higgins, A.K.(eds): Review of Survey activities 2007. Geological Survey of Denmark and Greenland Bulletin 15, 81-84.
  • Hansen, J.R., Ernstsen, V., Refsgaard, J.C. & Hansen, S. 2008: Field Scale heterogeneity of redox conditions in till-upscaling to a catchment nitrate model. Hydrogeology Journal 16, 1251-1266.
  • Troldborg, L., Jensen, K.H., Engesgaard, P., Refsgaard, J.C. & Hinsby, K. 2008: Using environmental tracers in modeling flow in a complex shallow aquifer system. Journal of Hydrologic Engineering 13(11), 1037-1048.
  • Rosenbom, A.E., Ernstsen, V., Flühler, H., Jensen, K.H., Refsgaard, J.C. & Wydler, H. 2008: Fluorescence imaging applied to tracer distributions in variably saturated fractured. Journal of Environmental Quality 37, 448-458.
  • Larsen, F., Pham, N.Q., Dang, N.D., Postma, D., Jessen, S. Pham, V.H., Nguyen, T.B., Trieu, H.D., Tran, L.T., Nguyen, H., Chambon, J., Nguyen, H.V., Ha, D.H., Hue, N.T., Duc, M.T. & Refsgaard, J.C. 2008: Controlling geological and hydrogeological processes in an arsenic contaminated aquifer on the Red River flood plain, Vietnam. Applied Geochemistry 23(11), 3099-3115.
  • Jørgensen, L.F., Refsgaard, J.C. & Højberg, A.L. 2008: Joint use of monitoring and modelling. Water Science & Technology 56(8), 21-29.
  • Blind, M. & Refsgaard, J.C. 2008: Operationalising uncertainty in data and models for integrated water resources management. Water Science and Technology 56(9), 1-12.
  • Jørgensen, L.F., Refsgaard, J.C. & Højberg A.L. 2007: Joint use of Monitoring and Modelling. WaterMatex - 7th International IWA Symposium on Systems Analysis and Integrated Assessment in Water Management. 7-9 May, 2007. Washington D.C., U.S.A.. International Water Association. Proceedings WATERMATEX 2007 [CD-Rom], 1 p.
  • Højberg, A.L., Refsgaard, J.C., van Geer, F., Jørgensen, L.F. & Zsuffa, I. 2007: Use of models to support the monitoring requirements in the Water Framework Directive. Water Ressources Management 21, 1649-1672.
  • Henriksen, H.J., Troldborg, L., Højberg, A.L. & Refsgaard, J.C. 2008: Assessment of exploitable groundwater resources by use of ensamble resource indicators and numerical groundwater-surface water model [ publiceret on-line: doi:10.1016/j.jhydrol09.056]. Journal of Hydrology 348(2), 224-240.
  • Nilsson, B., Højbjerg, A.L., Refsgaard, J.C. & Troldborg, L. 2007: Uncertainty in geological and hydrogeological data. Hydrology and Earth System Sciences 11, 1551-1561.
  • Dahl, M., Nilsson, B., Langhoff, J.L. & Refsgaard, J.C. 2007: Review of classifcation systems and new multi-scale typology of groundwater-surface water interaction. Journal of Hydrology 344, 1-16.
  • Jørgensen, L.F., Refsgaard, J.C. & Højberg, A.L. 2007: The inadequacy of monitoring without modelling support. Journal of Environmental Monitoring 9, 931-942.
  • Troldborg, L., Refsgaard, J.C., Jensen, K.H. & Engesgaard, P.E. 2007: The importance of alternative conceptual models for simulation of concentrations in a multi-aquifer system. Hydrogeology Journal 15(5), 843-860.
  • Hansen, J.R., Refsgaard, J.C., Hansen, S. & Ernstsen, V. 2007: Problems with heterogeneity in physically based agricultural catchment models. Journal of Hydrology 342, 1-16.
  • Refsgaard, J.C., van der Sluijs, J.P., Højberg, A.L. & Vanrolleghem, P.A. 2007: Uncertainty in the environmental modelling process - A framework and guidance. Environmental Modelling & Software 22, 1543-1556.
  • Scholten, H., Kassahun, A., Refsgaard, J.C., Kargas, T., Gavardinas, C. & Beulens, A.J.M. 2007: A methodology to support multidisciplinary model-based water management. Environmental Modeeling & Software 22, 743-759.
  • Refsgaard, J.C., van der Sluijs, J.P., Brown, J. & van der Keur, P. 2006: A framework for dealing with uncertainty due to model structure error. Advances in Water Resources 29, 1586-1597.
  • Brown, J.D., Heuvelink, G.B. & Refsgaard, J.C. 2005: An integrated methodology for recording uncertainties about environmental data. Water Science & Technology 52(6), 153-160.
  • Højberg, A.L. & Refsgaard, J.C. 2005: Model uncertainty - parameter uncertainty versus conceptual models. Water Science & Technology 52(6), 177-186.
  • Refsgaard, J.C., Nilsson, B., Brown, J., Klauer, B., Moore, R., Bech, T., Vurro, M., Blind, M., Castilla, G., Tsanis, I. & Biza, P. 2005: Harmonised Techniques and Representative River Basin Data for Assessment and Use of Uncertainty Information in Integrated Water Management (HarmoniRiB). Environmental Science & Policy 8, 267-277.
  • Refsgaard, J.C., Henriksen, H.J., Harrar, W.G., Scholten, H. & Kassahun, A. 2005: Quality assurance in model based water management - review of existing practice and outline of new approaches. Environmental Modelling & Software(20), 1201-1215.
  • Christiansen, J.S., Thorsen, M., Clausen, T., Hansen, S. & Refsgaard, J.C. 2004: Modelling of macropore flow and transport at catchment scale. Journal of Hydrology 299, 136-158.
  • Boegh, E., Thorsen, M., Butts, M.B., Hansen, S., Christiansen, J.S., Abrahamsen, P., Hasager, C.B., Jensen, N.O., van der Keur, P., Refsgaard, J.C., Schelde, K., Soegaard, H. & Thomsen, A. 2004: Incorrporating remote sensing data in physically based distributed agro-hydrological modelling. Journal of Hydrology 287, 279-299.
  • Refsgaard, J.C. & Henriksen, H.J. 2004: Modelling guidelines - terminology and guiding principles. Advances in Water Resources 27(1), 71-82.
  • Sandholt, I., Andersen, J., Dybkjær, G., Nyborg, L., Lo, M., Rasmussen, K., Refsgaard, J.C., Jensen, K.H. & Toure, A. 2003: Integration of earth observation data in distributed hydrological models: the Senegal River Basin. Canadian Journal of Remote Sensing 29(6), 701-710.
  • Henriksen, H.J., Troldborg, L., Nyegaard, P., Sonnenborg, T.O., Refsgaard, J.C. & Madsen, B. 2003: Methodology for construction, calibration and validation of a national hydrological model for Denmark. Journal of Hydrology 280, 52-71.
  • Nilsson, B., Refgaard, J.C., Dahl, M., Møller, I., Kronvang, B., Andersen, H.E., Hofmann C.C., Christensen, S., Heidermann, J. & Rasmussen, K.R. 2003: Hydrokemsik interaktion mellem grundvand og overfladevand (HYGRO). En metode til klassificering af ådale i typeområder. Miljøstyrelsen, 121 pp.
  • Sonnenborg, T.O., Christensen, B.S.B., Nyegaard, P., Henriksen, H.J. & Refsgaard, J.C. 2003: Transient modeling of regional groundwater flow using parameter estimates from steady-state automatic calibration. Journal of Hydrology 273, 188-204.
  • Andersen, J., Sandholt, I., Jensen, K.H., Refsgaard, J.C. & Gupta, H. 2002: Perspectives in using a remotely sensed dryness index in distributed hydrological models at the river-basin scale. Hydrological Processes 16, 2973-2987.
  • Andersen, J., Dybkjær, G., Jensen, K.H., Refsgaard, J.C. & Rasmussen, K. 2002: Use of remotely sensed precipitation and leaf area index in a distributed hydrological model. Journal of Hydrology 264, 34-50.
  • Vazquez,R.F., Feyen,L., Feyen, J.& Refsgaard, J.C. 2002: Effect of grid size parameters and model performance of the MIKE-SHE code. Hydrological Processes 16, 355-372.
  • Projekter
    Jens Christian Refsgaard