Dr. Markus Hrachowitz

Markus Hrachowitz is an Associate Professor in Hydrology. He obtained both, his engineering degree and his Ph.D. from University of Natural Resources and Applied Sciences (BOKU) in Vienna in 2002 and 2005, respectively. Markus then spent 2 years at the University of British Columbia in Vancouver/Canada and 3 years at the University of Aberdeen in Scotland doing post-doctoral research before joining TU Delft in April 2010.

His research interests mainly focuses on tracer hydrology and conceptual hydrological modeling with a focus of better understanding and representing source areas of water, flow pathways, hillslope connectivity, emergent processes and nutrient/contaminant fluxes within flexible conceptual modeling frameworks.

Markus' Full CV can be found here

Publications

 

Publication statistics (15/03/2019):

64 peer reviewed publications in international journals
h-index: 30 – Google Scholar, 27 – Scopus
Citations: 3233 – Google Scholar, 2374 – Scopus

Prenner, D., Hrachowitz, M. and Kaitna, R. (2019). Trigger characteristics of torrential flows from high to low alpine regions in Austria. Science of the Total Environment 658:958-972.

Bouaziz, L., Weerts, A., Schellekens, J., Sprokkereef, E., Stam, J., Savenije, H.H.G. and Hrachowitz, M. (2018). Redressing the balance: quantifying intercatchment groundwater flow. Hydrology and Earth System Sciences 22:6415-6434.

Gao, H., Birkel, C., Hrachowitz, M., Tetzlaff, D., Soulsby, C. and Savenije, H.H.G. (2019). A simple topography-driven and calibration-free runoff generation model. Hydrology and Earth System Sciences 23:787-809.

Prenner, D., Kaitna, R., Mostbauer, K. and Hrachowitz, M. (2018). The Value of Using Multiple Hydro-meteorological Variables to Predict Debris Flow Susceptibility in an Alpine Environment. Water Resources Research (in review).

Mostbauer, K., Prenner, D., Kaitna, R. and Hrachowitz, M. (2018). The temporally varying roles of high intensity rainfall, snow melt and antecedent soil moisture for debris flow initiation in a snow dominated system: the compound trigger concept. Hydrology and Earth System Sciences (in review).

 Nijzink, R.C., Almeida, S., Pechlivanidis, I.G., Capell, R., Gustaffsons, D., Arheimer, B., Parajka, J., Freer, J., Han, D., Wagener, T., Savenije, H.H.G. and Hrachowitz, M. (2018). Constraining conceptual hydrological models with different observations. Hydrology and Earth System Sciences (in review).

 Gao, H., Birkel, C., Hrachowitz, M., Tetzlaff, D., Soulsby, C. and Savenije, H.H.G. (2018). A simple topography-driven and calibration-free runoff generation model. Hydrology and Earth System Sciences (in review).

Hrachowitz, M. and Clark, M.P. (2017). The complementary merits of top-down and bottom-up modelling philosophies in hydrology. Hydrology and Earth System Sciences 21:3953-3973.

Savenije, H.H.G. and Hrachowitz, M. (2017). Catchments as meta-organisms – a new blueprint for hydrological modelling. Hydrology and Earth System Sciences 21:1107-1116.

Drever, M. and Hrachowitz, M. (2017). Migration as Flow: Using hydrological concepts to estimate residence time of migrating shorebirds from daily counts. Methods in Ecology and Evolution (in press).

Gao, H., Ding, Y., Zhao, Q., Hrachowitz, M. and Savenije, H.H.G. (2017). The importance of aspect for modelling the hydrological response in a glacier catchment in Central Asia. Hydrological Processes 31:2842-2859.

 Nijzink, R.C., Hutton, C., Pechlivanidis, I., Capell, R., Arheimer, B., Freer, J., Han, D., Wagener, T., McGuire, K., Savenije, H. and Hrachowitz, M. (2016). The evolution of root-zone moisture capacities after deforestation: a step towards hydrological predictions under change? Hydrology and Earth System Sciences 20:4775-4799.

Gao, H., Hrachowitz, M., Sriwongsitanon, N., Fenicia, F., Gharari, S. and Savenije, H.H.G. (2016). Towards understanding the influence of vegetation and topography on model transferability. Water Resources Research 52:7999-8022

Hrachowitz, M., Benettin, P., van Breukelen, B.M., Fovet, O., Howden, N.J.K., Ruiz, L., van der Velde, Y. and Wade, A.J. (2016). Transit times – how catchments store and release water. WIREs – Water 3:629-657.

Nijzink, R.C., Samaniego, L., Mai, J., Kumar, R., Thober, S., Zink, M., Schäfer, D., Savenije, H.H.G. and Hrachowitz, M. (2016). The importance of topography controlled subgrid process heterogeneity in distributed hydrological models. Hydrology and Earth System Sciences 20:1151-1176.

De Boer-Euser, T., McMillan, H., Hrachowitz, M., Winsemius, H. and Savenije, H.H.G. (2016). Influence of soil and climate on root zone storage capacity. Water Resources Research 52:2009-2024.

Rinaldo, A., Benettin, P., Harman, C., Hrachowitz, M., McGuire, K., Van der Velde, Y., Bertuzzo, E. and Botter, G. (2016). Comment on “Storage selection functions: a coherent framework for quantifying how catchments store and release water and solutes” by Rinaldo et al.: Reply. Water Resources Research 52:616-618.

Euser, T., Hrachowitz, M., Winsemius, H. and Savenije, H.H.G. (2015). The effect of forcing and landscape distribution on performance and consistency of model structures. Hydrological Processes 29:3727-3743.

Hrachowitz, M., Fovet, O., Ruiz, L. and Savenije, H.H.G. (2015). Variable low pass filter characteristics of catchments can link 1/fα scaling and long-term stable biogeochemical responses. Hydrological Processes 29:5241-5256.

Rinaldo, A., Benettin, P., Harman, C., Hrachowitz, M., McGuire, K., Van der Velde, Y., Bertuzzo, E. and Botter, G. (2015). Debates – Storage selection functions: a coherent framework for quantifying how catchments store and release water and solutes. Water Resources Research 51: 4840-4847.

Ceola, S., Arheimer, B., Bloeschl, G., Baratti, E., Capell, R., Castellarin, A., Freer, J., Han, D., Hrachowitz, M., Hundecha, Y., Hutton, C., Lindstrom, G., Montanari, A., Nijzink, R., Parajka, J., Toth, E., Viglione, A. and Wagener, T. (2015). Virtual laboratories: New opportunities for water science. Hydrology and Earth System Sciences 19:2101-2117.

Fovet, O., Ruiz, L., Hrachowitz, M., Faucheux, M. and Gascuel-Odoux, C. (2015). Hydrological hysteresis and its value for assessing process consistency in catchment conceptual models. Hydrology and Earth System Sciences 19:105-123.

Gao, H., Hrachowitz, M., Schymanski, S.J., Fenicia, F. and Savenije, H.H.G. (2014). Ecosystems and societies use similar strategies to manage water supply. Geophysical Research Letters 41:7916-7923.

Hrachowitz, M., Fovet, O., Ruiz, L., Euser, T., Gharari, S., Nijzink, R., Freer, J., Savenije, H.H.G. and Gascuel-Odoux, C. (2014). Process Consistency in Models: the Importance of System Signatures, Expert Knowledge and Process Complexity. Water Resources Research 50:7445-7469.

Gharari, S., Hrachowitz, M., Fenicia, F., Gao, H. and Savenije, H.H.G. (2014). Using expert knowledge to increase realism in environmental systems models can dramatically reduce the need for calibration. Hydrology and Earth System Sciences  18:4839-4859.

Gharari, S., Shafiei, M., Hrachowitz, M., Fenicia, F., Gupta, H.V. and Savenije, H.H.G. (2014). A search strategy for constraint-based parameterization of environmental systems models. Hydrology and Earth System Sciences 18:4861-4870.

Van Nooijen, R.R.P., Hrachowitz, M. and Kolechkina, A. (2014). Feedback versus uncertainty. Proceedings of the 7th International Congress on Environmental Modelling and Software, June 15-19, San Diego, California, USA.

Berghuijs, W.R., Woods, R.A. and Hrachowitz, M.  (2014). A precipitation shift from snow towards rain leads to a decrease in streamflow. Nature Climate Change 4:583-586.

Gao, H., Hrachowitz, M., Fenicia, F., Gharari, S. and Savenije, H.H.G. (2014). Testing the realism of a topography driven model (FLEX-Topo) in the nested catchments of the Upper Heihe, China. Hydrology and Earth System Sciences 18:1895-1915.

Coenders-Gerrits, A.M.J., van der Ent, R.J., Bogaard, T.A., Wang-Erlandsson, L., Hrachowitz, M. and Savenije, H.H.G. (2014). Data and model bias transpiration estimates. Commentary on “Terrestrial water fluxes dominated by transpiration” by Jasechko et al., Nature 496, 347-350. Nature 506.

Hrachowitz, M., Savenije, H.H.G., Blöschl, G., McDonnell, J.J., Sivapalan, M., Pomeroy, J.W., Arheimer, B., Blume, T., Clark, M.P., Ehret, U., Fenicia, F., Freer, J.E., Gelfan, A., Gupta, H.V., Hughes, D.A., Hut, R.W., Montanari, A., Pande, S., Tetzlaff, D., Troch, P.A., Uhlenbrook, S., Wagener, T., Winsemius, H.C., Woods, R.A., Zehe, E. and Cudennec, C. (2013). A decade of Predictions in Ungauged Basins (PUB) – a review. Hydrological Sciences Journal 58(6):1198-1255.

Tetzlaff, D., Al-Rawas, G., Blöschl, G., Carey, S.K., Fan, Y., Hrachowitz, M., Kirnbauer, R., Jewitt, G., Laudon, H., McGuire, K.J., Sayama, T., Soulsby, C., Zehe, E. and Wagener, T. (2013). Process realism: Flow paths and storage. Chapter 4, In: Runoff Prediction in Ungauged Basins: Synthesis across Processes, Places and Scales, Blöschl et al. (eds.), Cambridge University Press Cambridge, UK.

Hrachowitz, M., Savenije, H.H.G., Bogaard, T., Tetzlaff, D. and Soulsby, C. (2013). What can flux tracking teach us about water age distribution patterns and their temporal dynamics? Hydrology and Earth System Sciences 17:533-564.

Gharari, S., Hrachowitz, M., Fenicia, F. and Savenije, H.H.G. (2013). An approach to identify time consistent model parameters: sub-period calibration. Hydrology and Earth System Sciences 17, 149-161.

Euser, T., Winsemius, H.C., Hrachowitz, M., Fenicia, F., Uhlenbrook, S. and Savenije, H.H.G. (2013). A framework to assess the realism of model structures using hydrological signatures. Hydrology and Earth System Sciences 17: 1893-1912.

Imholt, C., Soulsby, C., Malcolm, I.A., Hrachowitz, M., Gibbins, C., Langan, S. and Tetzlaff, D. (2013). Influence of scale on thermal characteristics in a large montane river basin. River Research and Applications 29: 403-419.

Gharari, S., Hrachowitz, M., Fenicia, F.  and Savenije, H.H.G. (2011). Hydrological landscape classification: investigating the performance of HAND based landscape classifications in a central European meso-scale catchment. Hydrology and Earth System Sciences 15:3275-3291.

Dawson, J.J.C, Tetzlaff, D., Speed, M., Hrachowitz, M. and Soulsby, C. (2011). Seasonal controls on DOC dynamics in nested catchments in NE Scotland. Hydrological Processes 25, 1647-1658.

Hrachowitz, M., Bohte, R., Mul, M.L., Bogaard, T.A., Savenije, H.H.G. and S. Uhlenbrook (2011). On the value of combined event runoff and tracer analysis to improve understanding of catchment functioning in a data-scarce semi-arid area. Hydrology and Earth System Sciences 15: 2007-2024.

Hrachowitz, M., Soulsby, C., Tetzlaff, D. and Malcolm, I.A. (2011). Sensitivity of mean transit time estimates to model conditioning and data availability. Hydrological Processes 25:980-990.

Hrachowitz, M. and Weiler, M. (2011). A fuzzy logic approach for capturing spatial precipitation variability in complex terrain. Journal of Hydrological Engineering 16(5): 460-471.

Speed, M., Tetzlaff, D., Hrachowitz, M. and Soulsby, C. (2011). Evolution of the spatial and temporal characteristics of the isotope hydrology of a montane river basin. Hydrological Sciences Journal 56:426-442.

Tetzlaff, D., Soulsby, C., Hrachowitz, M. and Speed, M. (2011). Relative influence of upland and lowland headwaters on the isotope hydrology and transit times of larger catchments. Journal of Hydrology 400:438-447.

Hrachowitz, M., Soulsby, C., Tetzlaff, D., Malcolm, I.A. and Schoups, G. (2010). Gamma distribution models for transit time estimation in catchments: Physical interpretation of parameters and implications for time-variant transit time assessment. Water Resources Research 46, W10536.

Hrachowitz, M., Soulsby, C., Imholt, C., Malcolm, I.A and Tetzlaff, D. (2010). Thermal regimes in a large upland salmon river: a simple model to identify the influence of landscape controls and climate change on maximum temperatures. Hydrological Processes 24:3374-3391.

Hrachowitz, M., Soulsby, C. and Tetzlaff, D. (2010). Catchment transit times and landscape controls – does scale matter? Hydrological Processes 24:117-125.

Soulsby, C., Tetzlaff, D. and Hrachowitz, M. (2010). Spatial distribution of transit times in montane catchments: conceptualization tools for management. Hydrological Processes 24:3283-3288.

Soulsby, C., Tetzlaff, D. and Hrachowitz, M. (2010). Are transit times useful process-based tools for flow prediction and classification in ungauged basins in montane regions? Hydrological Processes 24:1685-1696

Speed, M., Tetzlaff, D., Soulsby, C., Hrachowitz, M. and Waldron, S. (2010). Isotopic and geochemical tracers reveal similarities in transit times in contrasting catchments. Hydrological Processes 24:1211-1224.

Hrachowitz, M., Soulsby, C., Tetzlaff, D., Dawson, J.J.C. and Malcolm, I.A. (2009). Integrating landscape controls to regionalize transit time estimates in montane catchments. Water Resource Research 45, W05421.

Hrachowitz, M., Soulsby, C., Tetzlaff, D., Dawson, J.J.C., Dunn S.M. and Malcolm, I.A. (2009). Using longer-term data sets to understand transit times in contrasting headwater catchments. Journal of Hydrology 367:237-248.

Dawson, J.J.C., Soulsby, C., Hrachowitz, M., Speed, M. and Tetzlaff, D. (2009). Seasonality of epCO2 at different scales along an integrated river continuum within the Dee Basin, NE Scotland. Hydrological Processes 23:2929-2942.  

Lair, G.J., Zehetner, F., Hrachowitz, M., Franz, N., Maringer, F.J. and Gerzabek, M.H. (2009). Dating of soil layers in a young floodplain using iron oxide crystallinity. Quarternary Geochronology 4:260-266.

Maringer, F.J., Gruber, V., Hrachowitz, M., Baumgartner, A., Weilner, S. and Seidel, C. (2009). Long-term monitoring of the Danube River - Sampling techniques, radionuclide metrology and radioecological assessment. Applied Radiation and Isotopes 67:894-900.

Soulsby, C., Tetzlaff, D. and Hrachowitz, M. (2009). Tracers and transit times: windows for viewing catchment scale storage? Hydrological Processes 23:3503-3507.

Dawson, J.J.C., Soulsby, C., Tetzlaff, D., Hrachowitz, M., Dunn, S.M. and Malcolm, I.A. (2008). Influence of hydrology and seasonality on DOC exports from contrasting upland catchments. Biogeochemistry 90(1):93-113.

Fiebig, M., Hrachowitz, M., Kugler, H., Mentler, A., Ottner, F., Pamperl, S., Sieghardt, M. and Blum, W. (2007): Soil properties and distribution of radionuclides of selected soil profiles from Southern Costa Rica. Neues Jahrbuch für Geologie und Paläontologie 246(3):283-297.

Hrachowitz, M., Maringer, F.J. and Gerzabek, M.H. (2005): Soil Redistribution Model for Undisturbed and Cultivated Sites Based on Chernobyl Cesium-137 Fallout. Journal of Environmental Quality 34:1302-1310.

Maringer, F.J., Tesch, R., Hrachowitz, M. and Gruber, V. (2004): Long-term environmental monitoring and application of low-level 3H, 7Be, 137Cs and 210Pb activity concentrations in the non-biotic compartments of the Danube in Austria. Applied Radiation and Isotopes 61(2-3): 313-317.

Hrachowitz, M. and Maringer, F.J. (2003): Quantifizierung von Bodenerosion mittels Radiocäsium. Mitteilungen der österreichischen Bodenkundlichen Gesellschaft 69:119-126.

Flory, R.J.W., Nash, D.F.T., Lee, E.M., Hall, J.W., Hrachowitz, M. and Walkden, M.J.A. (2002): The application of landslide modelling techniques for the prediction of soft coastal cliff recession. In: Instability Planning and Management, Ventnor, Isle of Wight, pp.249-256, R.G.McInnes and J.Jakeways (eds.), Thomas Telford, London.

Conference Papers and Contributions (as lead author)

(Plus ~ 50 additional contributions as lead author and >150 contributions as co-author - not listed)

Hrachowitz, M. (2017): Catchments as living organisms – Darwinian approaches to conceptual modelling. European Geosciences Union (EGU) General Assembly, April  23 – 28, 2017, Vienna (invited)

Hrachowitz, M. (2016): Model Formulations Under Change – Sure, but how? Problems and Ideas (but no Solutions). American Geophysical Union (AGU) Fall Meeting, December  12 – 16, 2016, San Francisco (invited)

Hrachowitz, M. et al. (2016): Is fractal scaling of stream chemistry universal? American Geophysical Union (AGU) Fall Meeting, December  12 – 16, 2016, San Francisco

Hrachowitz, M. et al.  (2016): Is fractal scaling of stream chemistry universal? European Geosciences Union (EGU) General Assembly, April  17 – 22, 2016, Vienna.

Hrachowitz, M. et al. (2015): Catchment low pass filter characteristics, legacy contamination and their link to variability in biogeochemical 1/fα scaling. American Geophysical Union (AGU) Fall Meeting, December  14 – 18, 2015, San Francisco

Hrachowitz, M. et al. (2015): Catchment filter characteristics, legacy contamination and variability in biogeochemical 1/fα scaling. European Geosciences Union (EGU) General Assembly, April  12 – 17, 2015, Vienna.

Hrachowitz, M. et al. (2014): Why bother to calibrate? American Geophysical Union (AGU) Fall Meeting, December  14 – 18, 2014, San Francisco (invited).

Hrachowitz, M. et al. (2014): Process Consistency in Models: the Importance of System Signatures, Expert Knowledge and Process Complexity. American Geophysical Union (AGU) Chapman Conference, September  23 – 26, 2014, Luxemburg.

Hrachowitz, M. et al. (2014): Process Consistency in Models: the Importance of System Signatures, Expert Knowledge and Process Complexity. European Geosciences Union (EGU) General Assembly, April  27 – May 2, 2014, Vienna (invited).

Hrachowitz, M. et al. (2013): How much complexity do signatures and expert knowledge warrant? American Geophysical Union (AGU) Fall Meeting, December 9-13, 2013, San Francisco.

Hrachowitz, M. et al. (2013): Pattern and dynamics of the combined hydrological and biogeochemical catchment response. Workshop INRA, October 30, 2013, Rennes (invited).

Hrachowitz, M. et al. (2013): Deconstructing the hydrologic response: pattern and dynamics of water age. European Geosciences Union (EGU) General Assembly, April 7-12, 2013, Vienna (invited).

Hrachowitz, M. et al. (2013): Linking chemostatic behaviour of streams to storage dynamics in water age distributions. European Geosciences Union (EGU) General Assembly, April 7-12, 2013, Vienna.

Hrachowitz, M. et al. (2012): Deconstructing the hydrologic response: pattern and dynamics of water age. American Geophysical Union (AGU) Fall Meeting, December 3-7, 2012, San Francisco.

Hrachowitz, M. et al. (2012): Temporal dynamics of water age and transit time: What can flux tracking tell us about internal processes of catchments? European Geosciences Union (EGU) General Assembly, April 22-27, 2012, Vienna (invited).

Hrachowitz, M. et al. (2012): What can be learned from combined event runoff and tracer analysis in a semi-arid, data-scarce catchment? European Geosciences Union (EGU) General Assembly, April 22-27, 2012, Vienna.

Markus Hrachowitz

Associate Professor