Prof. Dr. Ralf Merz
Head of Department
Department Catchment Hydrology
Helmholtz-Centre for
Environmental Research - UFZ
Theodor-Lieser-Str. 4
06120 Halle (Saale), Germany
Tel: +49 (0)341 6025 4199
ralf.merz@ufz.de
Short CV
Ralf Merz is head of the Department of Catchment Hydrology of the Helmholtz Centre for Environmental Research and Full Professor of Catchment Hydrology at the Martin-Luther University Halle-Wittenberg since 2011. He received his MSc of Civil Engineering at the Technical University of Karlsruhe in 1997 and his PhD at the Vienna University of Technology in 2002. His international experience includes a research position at Vienna University of Technology and at the University of Lancaster, UK. In 2006 he has received the renowned APART research grant of the Austrian Academy of Sciences. In 2009 he took his Habilitation in Hydrology at the Vienna University of Technology. He is or has been involved in numerous research and consulting projects at the national and international level.
Research interests
- Catchment Modelling
- Comparative Hydrology
- Regional monitoring and process analysis
- Hydrology of (semi) arid regions
- Flood risk assessment and flood estimation
Index:
- 2024 (2)
- 2023 (9)
- 2022 (7)
- 2021 (3)
- 2020 (5)
- 2019 (2)
- 2018 (6)
- 2017 (6)
- 2016 (7)
- 2015 (6)
- 2014 (8)
- 2013 (6)
- 2012 (7)
- 2011 (10)
- 2010 (1)
You could use our publication index for further requests.
2024 (2)
- Pesce, M., Viglione, A., von Hardenberg, J., Tarasova, L., Basso, S., Merz, R., Parajka, J., Tong, R. (2024):
Regional multi-objective calibration for distributed hydrological modelling: a decision tree based approach
In: Cudennec, C. (ed.)
Hydrological Sciences in the Anthropocene. Vol. 2: Variability and change across space, time, extremes, and interfaces - IAHS Scientific Assembly 2022, Montpellier, 29 May-3 June 2022
Proceedings of IAHS 385
International Association of Hydrological Sciences (IAHS), Wallingford, Oxfordshire, 65 - 69 10.5194/piahs-385-65-2024 - Saavedra, F., Musolff, A., von Freyberg, J., Merz, R., Knöller, K., Müller, C., Brunner, M., Tarasova, L. (2024):
Winter post-droughts amplify extreme nitrate concentrations in German rivers
Environ. Res. Lett. 19 (2), art. 024007 10.1088/1748-9326/ad19ed
2023 (9)
- Basso, S., Merz, R., Tarasova, L., Miniussi, A. (2023):
Extreme flooding controlled by stream network organization and flow regime
Nat. Geosci. 16 (4), 339 - 343 10.1038/s41561-023-01155-w - Becker, R., Schüth, C., Merz, R., Khaliq, T., Usman, M., aus der Beek, T., Kumar, R., Schulz, S. (2023):
Increased heat stress reduces future yields of three major crops in Pakistan’s Punjab region despite intensification of irrigation
Agric. Water Manage. 281 , art. 108243 10.1016/j.agwat.2023.108243 - Miniussi, A., Merz, R., Kaule, L., Basso, S. (2023):
Identifying discontinuities of flood frequency curves
J. Hydrol. 617, Part B , art. 128989 10.1016/j.jhydrol.2022.128989 - Mushtaq, S., Miniussi, A., Merz, R., Tarasova, L., Marra, F., Basso, S. (2023):
Prediction of extraordinarily high floods emerging from heterogeneous flow generation processes
Geophys. Res. Lett. 50 (20), e2023GL105429 10.1029/2023GL105429 - Tarasova, L., Lun, D., Merz, R., Blöschl, G., Basso, S., Bertola, M., Miniussi, A., Rakovec, O., Samaniego, L., Thober, S., Kumar, R. (2023):
Shifts in flood generation processes exacerbate regional flood anomalies in Europe
Commun. Earth Environ. 4 , art. 49 10.1038/s43247-023-00714-8 - Tarasova, L., Merz, R. (2023):
Großräumige Analyse von Abflussereignissen: Entstehungsprozesse und deren Effekt auf die räumliche und zeitliche Variabilität der Abflussdynamik – Large scale analysis of runoff events: generation processes and their effect on the spatio-temporal variability of runoff event dynamics
Hydrol. Wasserbewirtsch. 67 (5), 275 - 286 10.5675/HyWa_2023.5_4 - Wang, H.-J., Merz, R., Yang, S., Basso, S. (2023):
Inferring heavy tails of flood distributions through hydrograph recession analysis
Hydrol. Earth Syst. Sci. 27 (24), 4369 - 4384 10.5194/hess-27-4369-2023 - Wang, H.-J., Merz, R., Yang, S., Tarasova, L., Basso, S. (2023):
Emergence of heavy tails in streamflow distributions: the role of spatial rainfall variability
Adv. Water Resour. 171 , art. 104359 10.1016/j.advwatres.2022.104359 - Zhou, X., Jomaa, S., Yang, X., Merz, R., Wang, Y., Rode, M. (2023):
Stream restoration can reduce nitrate levels in agricultural landscapes
Sci. Total Environ. 896 , art. 164911 10.1016/j.scitotenv.2023.164911
2022 (7)
- Merz, B., Basso, S., Fischer, S., Lun, D., Blöschl, G., Merz, R., Guse, B., Viglione, A., Vorogushyn, S., Macdonald, E., Wietzke, L., Schumann, A. (2022):
Understanding heavy tails of flood peak distributions
Water Resour. Res. 58 (6), e2021WR030506 10.1029/2021WR030506 - Merz, R., Miniussi, A., Basso, S., Petersen, K.-J., Tarasova, L. (2022):
More complex is not necessarily better in large-scale hydrological modelling: A model complexity experiment across the contiguous United States
Bull. Amer. Meteorol. Soc. 103 (8), E1947 - E1967 10.1175/BAMS-D-21-0284.1 - Mushtaq, S., Miniussi, A., Merz, R., Basso, S. (2022):
Reliable estimation of high floods: A method to select the most suitable ordinary distribution in the Metastatistical extreme value framework
Adv. Water Resour. 161 , art. 104127 10.1016/j.advwatres.2022.104127 - Saavedra, F.A., Musolff, A., von Freyberg, J., Merz, R., Basso, S., Tarasova, L. (2022):
Disentangling scatter in long-term concentration–discharge relationships: the role of event types
Hydrol. Earth Syst. Sci. 26 (23), 6227 - 6245 10.5194/hess-26-6227-2022 - Wachholz, A., Jawitz, J.W., Büttner, O., Jomaa, S., Merz, R., Yang, S., Borchardt, D. (2022):
Drivers of multi-decadal nitrate regime shifts in a large European catchment
Environ. Res. Lett. 17 (6), art. 064039 10.1088/1748-9326/ac6f6a - Weber, U., Attinger, S., Baschek, B., Boike, J., Borchardt, D., Brix, H., Brüggemann, N., Bussmann, I., Dietrich, P., Fischer, P., Greinert, J., Hajnsek, I., Kamjunke, N., Kerschke, D., Kiendler-Scharr, A., Körtzinger, A., Kottmeier, C., Merz, B., Merz, R., Riese, M., Schloter, M., Schmid, H.P., Schnitzler, J.-P., Sachs, T., Schütze, C., Tillmann, R., Vereecken, H., Wieser, A., Teutsch, G. (2022):
MOSES: A novel observation system to monitor dynamic events across earth compartments
Bull. Amer. Meteorol. Soc. 103 (2), E339 - E348 10.1175/BAMS-D-20-0158.1 - Zhou, X., Jomaa, S., Yang, X., Merz, R., Wang, Y., Rode, M. (2022):
Exploring the relations between sequential droughts and stream nitrogen dynamics in central Germany through catchment-scale mechanistic modelling
J. Hydrol. 614, Part B , art. 128615 10.1016/j.jhydrol.2022.128615
2021 (3)
- Basso, S., Botter, G., Merz, R., Miniussi, A. (2021):
PHEV! The PHysically-based Extreme Value distribution of river flows
Environ. Res. Lett. 16 (12), art. 124065 10.1088/1748-9326/ac3d59 - Bujak, I., Müller, C., Merz, R., Knöller, K. (2021):
High spatial-resolution monitoring to investigate nitrate export and its drivers in a mesoscale river catchment along an anthropogenic land-cover gradient
Hydrol. Process. 35 (12), e14361 10.1002/hyp.14361 - Schulz, S., Becker, R., Richard‐Cerda, J.C., Usman, M., aus der Beek, T., Merz, R., Schüth, C. (2021):
Estimating water balance components in irrigated agriculture using a combined approach of soil moisture and energy balance monitoring, and numerical modeling
Hydrol. Process. 35 (3), e14077 10.1002/hyp.14077
2020 (5)
- Clemens, M., Khurelbaatar, G., Merz, R., Siebert, C., van Afferden, M., Rödiger, T. (2020):
Groundwater protection under water scarcity; from regional risk assessment to local wastewater treatment solutions in Jordan
Sci. Total Environ. 706 , art. 136066 10.1016/j.scitotenv.2019.136066 - Merz, R., Tarasova, L., Basso, S. (2020):
Parameter's controls of distributed catchment models—How much information is in conventional catchment descriptors?
Water Resour. Res. 56 (2), e2019WR026008 10.1029/2019WR026008 - Merz, R., Tarasova, L., Basso, S. (2020):
The flood cooking book: ingredients and regional flavors of floods across Germany
Environ. Res. Lett. 15 (11), art. 114024 10.1088/1748-9326/abb9dd - Tarasova, L., Basso, S., Merz, R. (2020):
Transformation of generation processes from small runoff events to large floods
Geophys. Res. Lett. 47 (22), e2020GL090547 10.1029/2020GL090547 - Tarasova, L., Basso, S., Wendi, D., Viglione, A., Kumar, R., Merz, R. (2020):
A process‐based framework to characterize and classify runoff events – the event typology of Germany
Water Resour. Res. 56 (5), e2019WR026951 10.1029/2019WR026951
2019 (2)
- Blöschl, G., Hall, J., Viglione, A., Perdigão, R.A.P., Parajka, J., Merz, B., Lun, D., Arheimer, B., Aronica, G.T., Bilibashi, A., Boháč, M., Bonacci, O., Borga, M., Čanjevac, I., Castellarin, A., Chirico, G.B., Claps, P., Frolova, N., Ganora, D., Gorbachova, L., Gül, A., Hannaford, J., Harrigan, S., Kireeva, M., Kiss, A., Kjeldsen, T.R., Kohnová, S., Koskela, J.J., Ledvinka, O., Macdonald, N., Mavrova-Guirguinova, M., Mediero, L., Merz, R., Molnar, P., Montanari, A., Murphy, C., Osuch, M., Ovcharuk, V., Radevski, I., Salinas, J.L., Sauquet, E., Šraj, M., Szolgay, J., Volpi, E., Wilson, D., Zaimi, K., Živković, N. (2019):
Changing climate both increases and decreases European river floods
Nature 573 (7772), 108 - 111 10.1038/s41586-019-1495-6 - Tarasova, L., Merz, R., Kiss, A., Basso, S., Blöschl, G., Merz, B., Viglione, A., Plötner, S., Guse, B., Schumann, A., Fischer, S., Ahrens, B., Anwar, F., Bárdossy, A., Bühler, P., Haberlandt, U., Kreibich, H., Krug, A., Lun, D., Müller‐Thomy, H., Pidoto, R., Primo, C., Seidel, J., Vorogushyn, S., Wietzke, L. (2019):
Causative classification of river flood events
Wiley Interdiscip. Rev.-Water 6 (4), e1353 10.1002/wat2.1353
2018 (6)
- Diamantini, E., Lutz, S., Mallucci, S., Majone, B., Merz, R., Bellin, A. (2018):
Driver detection of water quality trends in three large European river basins
Sci. Total Environ. 612 , 49 - 62 10.1016/j.scitotenv.2017.08.172 - Lutz, S.R., Krieg, R., Müller, C., Zink, M., Knöller, K., Samaniego, L., Merz, R. (2018):
Spatial patterns of water age: using young water fractions to improve the characterization of transit times in contrasting catchments
Water Resour. Res. 54 (7), 4767 - 4784 10.1029/2017WR022216 - Müller, C., Musolff, A., Strachauer, U., Brauns, M., Tarasova, L., Merz, R., Knöller, K. (2018):
Tomography of anthropogenic nitrate contribution along a mesoscale river
Sci. Total Environ. 615 , 773 - 783 10.1016/j.scitotenv.2017.09.297 - Tarasova, L., Basso, S., Poncelet, C., Merz, R. (2018):
Exploring controls on rainfall‐runoff events: 2. Regional patterns and spatial controls of event characteristics in Germany
Water Resour. Res. 54 (10), 7688 - 7710 10.1029/2018WR022588 - Tarasova, L., Basso, S., Zink, M., Merz, R. (2018):
Exploring controls on rainfall‐runoff events: 1. Time series‐based event separation and temporal dynamics of event runoff response in Germany
Water Resour. Res. 54 (10), 7711 - 7732 10.1029/2018WR022587 - Vigiak, O., Lutz, S., Mentzafou, A., Chiogna, G., Ye, T., Majone, B., Beck, H., de Roo, A., Malagó, A., Bouraoui, F., Kumar, R., Samaniego, L., Merz, R., Gamvroudis, C., Skoulikidis, N., Nikolaidis, N.P., Bellin, A., Acuňa, V., Mori, N., Ludwig, R., Pistocchi, A. (2018):
Uncertainty of modelled flow regime for flow-ecological assessment in Southern Europe
Sci. Total Environ. 615 , 1028 - 1047 10.1016/j.scitotenv.2017.09.295
2017 (6)
- Blöschl, G., Hall, J., Parajka, J., Perdigão, R.A.P., Merz, B., Arheimer, B., Aronica, G.T., Bilibashi, A., Bonacci, O., Borga, M., Čanjevac, I., Castellarin, A., Chirico, G.B., Claps, P., Fiala, K., Frolova, N., Gorbachova, L., Gül, A., Hannaford, J., Harrigan, S., Kireeva, M., Kiss, A., Kjeldsen, T.R., Kohnová, S., Koskela, J.J., Ledvinka, O., Macdonald, N., Mavrova-Guirguinova, M., Mediero, L., Merz, R., Molnar, P., Montanari, A., Murphy, C., Osuch, M., Ovcharuk, V., Radevski, I., Rogger, M., Salinas, J.L., Sauquet, E., Šraj, M., Szolgay, J., Viglione, A., Volpi, E., Wilson, D., Zaimi, K., Živković, N. (2017):
Changing climate shifts timing of European floods
Science 357 (6351), 588 - 590 10.1126/science.aan2506 - Knoche, M., Merz, R., Lindner, M., Weise, S.M. (2017):
Bridging glaciological and hydrological trends in the Pamir Mountains, Central Asia
Water 9 (6), art. 422 10.3390/w9060422 - Poncelet, N., Merz, R., Merz, B., Parajka, J., Oudin, L., Andréassian, V., Perrin, C. (2017):
Process-based interpretation of conceptual hydrological model performance using a multinational catchment set
Water Resour. Res. 53 (8), 7247 - 7268 10.1002/2016WR019991 - Schulz, S., Walther, M., Michelsen, N., Rausch, R., Dirks, H., Al-Saud, M., Merz, R., Kolditz, O., Schüth, C. (2017):
Improving large-scale groundwater models by considering fossil gradients
Adv. Water Resour. 103 , 32 - 43 10.1016/j.advwatres.2017.02.010 - Wolf, B., Chwala, C., Fersch, B., Garvelmann, J., Junkermann, W., Zeeman, M.J., Angerer, A., Adler, B., Beck, C., Brosy, C., Brugger, P., Emeis, S., Dannenmann, M., De Roo, F., Diaz-Pines, E., Haas, E., Hagen, M., Hajnsek, I., Jacobeit, J., Jagdhuber, T., Kalthoff, N., Kiese, R., Kunstmann, H., Kosak, O., Krieg, R., Malchow, C., Mauder, M., Merz, R., Notarnicola, C., Philipp, A., Reif, W., Reineke, S., Rödiger, T., Ruehr, N., Schäfer, K., Schrön, M., Senatore, A., Shupe, H., Völksch, I., Wanninger, C., Zacharias, S., Schmid, H.P. (2017):
The SCALEX campaign: scale-crossing land surface and boundary layer processes in the TERENO-preAlpine observatory
Bull. Amer. Meteorol. Soc. 98 (6), 1217 - 1234 10.1175/BAMS-D-15-00277.1 - Wollschläger, U., Attinger, S., Borchardt, D., Brauns, M., Cuntz, M., Dietrich, P., Fleckenstein, J.H., Friese, K., Friesen, J., Harpke, A., Hildebrandt, A., Jäckel, G., Kamjunke, N., Knöller, K., Kögler, S., Kolditz, O., Krieg, R., Kumar, R., Lausch, A., Liess, M., Marx, A., Merz, R., Mueller, C., Musolff, A., Norf, H., Oswald, S.E., Rebmann, C., Reinstorf, F., Rode, M., Rink, K., Rinke, K., Samaniego, L., Vieweg, M., Vogel, H.-J., Weitere, M., Werban, U., Zink, M., Zacharias, S. (2017):
The Bode hydrological observatory: a platform for integrated, interdisciplinary hydro-ecological research within the TERENO Harz/Central German Lowland Observatory
Environ. Earth Sci. 76 (1), art. 29 10.1007/s12665-016-6327-5
2016 (7)
- Kottmeier, C., Agnon, A., Al-Halbouni, D., Alpert, P., Corsmeier, U., Dahm, T., Eshel, A., Geyer, S., Haas, M., Holohan, E., Kalthoff, N., Kishcha, P., Krawczyk, C., Lati, J., Laronne, J.B., Lott, F., Mallast, U., Merz, R., Metzger, J., Mohsen, A., Morin, E., Nied, M., Rödiger, T., Salameh, E., Sawarieh, A., Shannak, B., Siebert, C., Weber, M. (2016):
New perspectives on interdisciplinary earth science at the Dead Sea: The DESERVE project
Sci. Total Environ. 544 , 1045 - 1058 10.1016/j.scitotenv.2015.12.003 - Lutz, S.R., Mallucci, S., Diamantini, E., Majone, B., Bellin, A., Merz, R. (2016):
Hydroclimatic and water quality trends across three Mediterranean river basins
Sci. Total Environ. 571 , 1392 - 1406 10.1016/j.scitotenv.2016.07.102 - Mueller, C., Krieg, R., Merz, R., Knöller, K. (2016):
Regional nitrogen dynamics in the TERENO Bode River catchment, Germany, as constrained by stable isotope patterns
Isot. Environ. Health Stud. 52 (1-2), 61 - 74 10.1080/10256016.2015.1019489 - Mueller, C., Zink, M., Samaniego, L., Krieg, R., Merz, R., Rode, M., Knöller, K. (2016):
Discharge driven nitrogen dynamics in a mesoscale river basin as constrained by stable isotope patterns
Environ. Sci. Technol. 50 (17), 9187 - 9196 10.1021/acs.est.6b01057 - Schulz, S., de Rooij, G.H., Michelsen, N., Rausch, R., Siebert, C., Schüth, C., Al-Saud, M., Merz, R. (2016):
Estimating groundwater recharge for an arid karst system using a combined approach of time-lapse camera monitoring and water balance modelling
Hydrol. Process. 30 (5), 771 - 782 10.1002/hyp.10647 - Siebert, C., Rödiger, T., Schulz, S., Horovitz, M., Merz, R., Friesen, J., Dietrich, P., Michelsen, N., Kallioras, A., Rausch, R., Engelhardt, I., Al-Saud, M., Schüth, C. (2016):
New tools for coherent information base for IWRM in arid regions: the Upper Mega Aquifer System on the Arabian Peninsula
In: Borchardt, D., Bogardi, J., Ibisch, R.B. (eds.)
Integrated water resources management: concept, research and implementation
Springer, Basel, p. 85 - 106 10.1007/978-3-319-25071-7_4 - Tarasova, L., Knoche, M., Dietrich, J., Merz, R. (2016):
Effects of input discretization, model complexity, and calibration strategy on model performance in a data-scarce glacierized catchment in Central Asia
Water Resour. Res. 52 (6), 4674 - 4699 10.1002/2015WR018551
2015 (6)
- Gaál, L., Szolgay, J., Kohnová, S., Hlavčová, K., Parajka, J., Viglione, A., Merz, R., Blöschl, G. (2015):
Dependence between flood peaks and volumes: a case study on climate and hydrological controls
Hydrol. Sci. J.-J. Sci. Hydrol. 60 (6), 968 - 984 10.1080/02626667.2014.951361 - Navarro-Ortega, A., Acuña, V., Bellin, A., Burek, P., Cassiani, G., Choukr-Allah, R., Dolédec, S., Elosegi, A., Ferrari, F., Ginebreda, A., Grathwohl, P., Jones, C., Raultl, P.K., Kok, K., Koundouri, P., Ludwig, R.P., Merz, R., Milacic, R., Muñoz, I., Nikulin, G., Paniconi, C., Paunović, M., Petrovic, M., Sabater, L., Skoulikidis, N.T., Slob, A., Teutsch, G., Voulvoulis, N., Barceló, D. (2015):
Managing the effects of multiple stressors on aquatic ecosystems under water scarcity. The GLOBAQUA project
Sci. Total Environ. 503-504 , 3 - 9 10.1016/j.scitotenv.2014.06.081 - Parajka, J., Merz, R., Skøien, J.O., Viglione, A. (2015):
The role of station density for predicting daily runoff by top-kriging interpolation in Austria
J. Hydrol. Hydromech. 63 (3), 228 - 234 10.1515/johh-2015-0024 - Schulz, S., de Rooij, G.H., Michelsen, N., Rausch, R., Siebert, C., Schüth, C., Merz, R. (2015):
Setting up a groundwater recharge model for an arid karst system using time lapse camera data
EGU General Assembly 2015, Vienna, Austria, 12–17 April 2015
Geophysical Research Abstracts 17
European Geosciences Union (EGU), EGU2015-12957 - Schulz, S., Horovitz, M., Rausch, R., Michelsen, N., Mallast, U., Köhne, M., Siebert, C., Schüth, C., Al-Saud, M., Merz, R. (2015):
Groundwater evaporation from salt pans: examples from the eastern Arabian Peninsula
J. Hydrol. 531 (Part 3), 792 - 801 10.1016/j.jhydrol.2015.10.048 - Thirel, G., Andréassian, V., Perrin, C., Audouy, J.-N., Berthet, L., Edwards, P., Folton, N., Furusho, C., Kuentz, A., Lerat, J., Lindström, G., Martin, E., Mathevet, T., Merz, R., Parajka, J., Ruelland, D., Vaze, J. (2015):
Hydrology under change: an evaluation protocol to investigate how hydrological models deal with changing catchments
Hydrol. Sci. J.-J. Sci. Hydrol. 60 (7-8), 1184 - 1199 10.1080/02626667.2014.967248
2014 (8)
- Brigode, P., Bernardara, P., Paquet, E., Gailhard, J., Garavaglia, F., Merz, R., Mićović, Z., Lawrence, D., Ribstein, P. (2014):
Sensitivity analysis of SCHADEX extreme flood estimations to observed hydrometeorological variability
Water Resour. Res. 50 (1), 353 - 370 10.1002/2013WR013687 - Hall, J., Arheimer, B., Borga, M., Brázdil, R., Claps, P., Kiss, A., Kjeldsen, T.R., Kriaučiūnienė, J., Kundzewicz, Z.W., Lang, M., Llasat, M.C., Macdonald, N., McIntyre, N., Mediero, L., Merz, B., Merz, R., Molnar, P., Montanari, A., Neuhold, C., Parajka, J., Perdigão, R.A.P., Plavcová, L., Rogger, M., Salinas, J.L., Sauquet, E., Schär, C., Szolgay, J., Viglione, A., Blöschl, G. (2014):
Understanding flood regime changes in Europe: a state-of-the-art assessment
Hydrol. Earth Syst. Sci. 18 (7), 2735 - 2772 10.5194/hess-18-2735-2014 - Knoche, M., Fischer, C., Pohl, E., Krause, P., Merz, R. (2014):
Combined uncertainty of hydrological model complexity and satellite-based forcing data evaluated in two data-scarce semi-arid catchments in Ethiopia
J. Hydrol. 519 (Part B), 2049 - 2066 10.1016/j.jhydrol.2014.10.003 - Mallast, U., Gloaguen, R., Friesen, J., Rödiger, T., Geyer, S., Merz, R., Siebert, C. (2014):
How to identify groundwater-caused thermal anomalies in lakes based on multi-temporal satellite data in semi-arid regions
Hydrol. Earth Syst. Sci. 18 (7), 2773 - 2787 10.5194/hess-18-2773-2014 - McIntyre, N., Ballard, C., Bruen, M., Bulygina, N., Buytaert, W., Cluckie, I., Dunn, S., Ehret, U., Ewen, J., Gelfan, A., Hess, T., Hughes, D., Jackson, B., Kjeldsen, T.R., Merz, R., Park, J.-S., O'Connell, E., O'Donnell, G., Oudin, L., Todini, E., Wagener, T., Wheater, H. (2014):
Modelling the hydrological impacts of rural land use change
Hydrol. Res. 45 (6), 737 - 754 10.2166/nh.2013.145 - Merz, B., Aerts, J., Arnbjerg-Nielsen, K., Baldi, M., Becker, A., Bichet, A., Blöschl, G., Bouwer, L.M., Brauer, A., Cioffi, F., Delgado, J.M., Gocht, M., Guzzetti, F., Harrigan, S., Hirschboeck, K., Kilsby, C., Kron, W., Kwon, H.-H., Lall, U., Merz, R., Nissen, K., Salvatti, P., Swierczynski, T., Ulbrich, U., Viglione, A., Ward, P.J., Weiler, M., Wilhelm, B., Nied, M. (2014):
Floods and climate: emerging perspectives for flood risk assessment and management
Nat. Hazards Earth Syst. Sci. 14 (7), 1921 - 1942 10.5194/nhess-14-1921-2014 - Rödiger, T., Geyer, S., Mallast, U., Merz, R., Krause, P., Fischer, C., Siebert, C. (2014):
Multi-response calibration of a conceptual hydrological model in the semiarid catchment of Wadi al Arab, Jordan
J. Hydrol. 509 , 193 - 206 10.1016/j.jhydrol.2013.11.026 - Siebert, C., Rödiger, T., Mallast, U., Gräbe, A., Guttman, J., Laronne, J.B., Storz-Peretz, Y., Greenman, A., Salameh, E., Al-Raggad, M., Vachtman, D., Zvi, A.B., Ionescu, D., Brenner, A., Merz, R., Geyer, S. (2014):
Challenges to estimate surface- and groundwater flow in arid regions: The Dead Sea catchment
Sci. Total Environ. 485-486 , 828 - 841 10.1016/j.scitotenv.2014.04.010
2013 (6)
- Brigode, P., Bernardara, P., Gailhard, J., Garavaglia, F., Ribstein, P., Merz, R. (2013):
Optimization of the geopotential heights information used in a rainfall-based weather patterns classification over Austria
Int. J. Climatol. 33 (6), 1563 - 1573 10.1002/joc.3535 - Mallast, U., Siebert, C., Schwonke, F., Gloaguen, R., Rödiger, T., Geyer, S., Sauter, M., Merz, R. (2013):
Airborne thermal data reveal groundwater discharge at the north-western coast of the Dead Sea
EGU General Assembly 2013, Vienna, Austria, 07–12 April 2013
Geophysical Research Abstracts 15
European Geosciences Union (EGU), EGU2013-5586 - Mallast, U., Siebert, C., Wagner, B., Sauter, M., Gloaguen, R., Geyer, S., Merz, R. (2013):
Localisation and temporal variability of groundwater discharge into the Dead Sea using thermal satellite data
Environ. Earth Sci. 69 (2), 587 - 603 10.1007/s12665-013-2371-6 - Meier, C., Knoche, M., Merz, R., Weise, S.M. (2013):
Stable isotopes in river waters in the Tajik Pamirs: regional and temporal characteristics
Isot. Environ. Health Stud. 49 (4), 542 - 554 10.1080/10256016.2013.835809 - Schulz, S., Siebert, C., Rödiger, T., Al-Raggad, M., Merz, R. (2013):
Application of the water balance model J2000 to estimate groundwater recharge in a semi-arid environment - a case study in the Zarqa River catchment, NW-Jordan
Environ. Earth Sci. 69 (2), 605 - 615 10.1007/s12665-013-2342-y - Viglione, A., Merz, R., Salinas, J.L., Blöschl, G. (2013):
Flood frequency hydrology: 3. A Bayesian analysis
Water Resour. Res. 49 (2), 675 - 692 10.1029/2011WR010782
2012 (7)
- Gaál, L., Szolgay, J., Kohnová, S., Parajka, J., Merz, R., Viglione, A., Blöschl, G. (2012):
Flood timescales: Understanding the interplay of climate and catchment processes through comparative hydrology
Water Resour. Res. 48 (4), W04511 10.1029/2011WR011509 - Knoche, M., Ebert, C., Rödiger, T., Siebert, C., Geyer, S., Weise, S., Gloaguen, R., Merz, R. (2012):
Precipitation downscaling and spatial trends in the Pamirs
EGU General Assembly 2012, Vienna, Austria, 22–27 April 2012
Geophysical Research Abstracts 14
European Geosciences Union (EGU), EGU2012-10892 - Mallast, U., Siebert, C., Gloaguen, R., Wagner, B., Schwonke, F., Rödiger, T., Geyer, S., Krieg, R., Sauter, M., Kühn, F., Merz, R. (2012):
Remote sensing application possibilities on groundwater characterization in arid regions at the example of the Dead Sea
EGU General Assembly 2012, Vienna, Austria, 22–27 April 2012
Geophysical Research Abstracts 14
European Geosciences Union (EGU), EGU2012-5273 - Mallast, U., Siebert, C., Schwonke, F., Wagner, B., Rödiger, T., Geyer, S., Gloaguen, R., Sauter, M., Kühn, F., Merz, R. (2012):
Application of thermal data for groundwater studies in arid regions at the example of the Dead Sea
In: Rausch, R., Schüth, C., Himmelsbach, T. (eds.)
Hydrogeology of arid environments : proceedings ; [results of the Conference "Hydrogeology of Arid Environments", March 2012 in Hannover (Germany)]
Borntraeger, Stuttgart, p. 84 - 88 - Rogger, M., Kohl, B., Pirkl, H., Viglione, A., Komma, J., Kirnbauer, R., Merz, R., Blöschl, G. (2012):
Runoff models and flood frequency statistics for design flood estimation in Austria – Do they tell a consistent story?
J. Hydrol. 456–457 , 30 - 43 10.1016/j.jhydrol.2012.05.068 - Rogger, M., Pirkl, H., Viglione, A., Komma, J., Kohl, B., Kirnbauer, R., Merz, R., Blöschl, G. (2012):
Step changes in the flood frequency curve: Process controls
Water Resour. Res. 48 , W05544 10.1029/2011WR011187 - Viglione, A., Castellarin, A., Rogger, M., Merz, R., Blöschl, G. (2012):
Extreme rainstorms: comparing regional envelope curves to stochastically generated events
Water Resour. Res. 48 , W01509 10.1029/2011WR010515
2011 (10)
- Blaschke, A.P., Merz, R., Parajka, J., Salinas, J.L., Blöschl, G. (2011):
Auswirkungen des Klimawandels auf das Wasserdargebot von Grund- und Oberflächenwasser. Climate impacts on surface and subsurface water resources
Österreichische Wasser- und Abfallwirtschaft 63 (1-2), 31 - 41 10.1007/s00506-010-0273-3 - Blöschl, G., Merz, R. (Hrsg., 2011):
Hydrologie & Wasserwirtschaft - von der Theorie zur Praxis : Beiträge zum Tag der Hydrologie am 24./25. März 2011 an der Technischen Universität Wien
Forum für Hydrologie und Wasserbewirtschaftung 30
Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall (DWA), Hennef, 389 S. - Blöschl, G., Schöner, W., Kroiß, H., Blaschke, A.P., Böhm, R., Haslinger, K., Kreuzinger, N., Merz, R., Parajka, J., Salinas, J.L., Viglione, A. (2011):
Anpassungsstrategien an den Klimawandel für Österreichs Wasserwirtschaft – Ziele und Schlussfolgerungen der Studie für Bund und Länder. Climate change adaptation strategies for water resources management in Austria
Österreichische Wasser- und Abfallwirtschaft 63 (1-2), 1 - 11 10.1007/s00506-010-0274-2 - Blöschl, G., Viglione, A., Merz, R., Parajka, J., Salinas, J.L., Schöner, W. (2011):
Auswirkungen des Klimawandels auf Hochwasser und Niederwasser. Climate impacts on floods and low flows
Österreichische Wasser- und Abfallwirtschaft 63 (1-2), 21 - 30 10.1007/s00506-010-0269-z - Ley, R.C., Hellbrand, M.C., Merz, R. (2011):
Catchment classification by runoff behaviour with self-organizing maps (SOM)
Hydrol. Earth Syst. Sci. 15 (9), 2947 - 2962 10.5194/hess-15-2947-2011 - Merz, R., Parajka, J., Blöschl, G. (2011):
Time stability of catchment model parameters - implications for climate impact analyses
Water Resour. Res. 47 , W02531 10.1029/2010WR009505 - Parajka, J., Blaschke, A.P., Merz, R., Salinas, J.L., Blöschl, G. (2011):
Klimawandel in Österreich - Auswirkungen auf Oberflächen- und Grundwasser
In: Blöschl, G., Merz, R. (Hrsg.)
Hydrologie & Wasserwirtschaft - von der Theorie zur Praxis : Beiträge zum Tag der Hydrologie am 24./25. März 2011 an der Technischen Universität Wien
Forum für Hydrologie und Wasserbewirtschaftung 30
Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall (DWA), Hennef, S. 121 - 128 - Salinas, J.L., Viglione, A., Merz, R., Parajka, J., Schöner, W., Blöschl, G. (2011):
Wie ändern sich Hochwasser und Niederwasser in Österreich
In: Blöschl, G., Merz, R. (Hrsg.)
Hydrologie & Wasserwirtschaft - von der Theorie zur Praxis : Beiträge zum Tag der Hydrologie am 24./25. März 2011 an der Technischen Universität Wien
Forum für Hydrologie und Wasserbewirtschaftung 30
Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall (DWA), Hennef, S. 129 - 135 - Schöner, W., Blöschl, G., Kroiß, H., Blaschke, A.P., Böhm, R., Haslinger, K., Kreuzinger, N., Merz, R., Parajka, J., Salinas, J.L., Viglione, A. (2011):
Anapssungsstrategien an den Klimawandel für Österreichs Wasserwirtschaft – meteorologische Grundlagen
In: Blöschl, G., Merz, R. (Hrsg.)
Hydrologie & Wasserwirtschaft - von der Theorie zur Praxis : Beiträge zum Tag der Hydrologie am 24./25. März 2011 an der Technischen Universität Wien
Forum für Hydrologie und Wasserbewirtschaftung 30
Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall (DWA), Hennef, S. 110 - 120 - Walther, J., Merz, R., Laaha, G., Büttner, U. (2011):
Regionalsierung von Hochwasserabflüssen in Sachsen
In: Blöschl, G., Merz, R. (Hrsg.)
Hydrologie & Wasserwirtschaft - von der Theorie zur Praxis : Beiträge zum Tag der Hydrologie am 24./25. März 2011 an der Technischen Universität Wien
Forum für Hydrologie und Wasserbewirtschaftung 30
Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall (DWA), Hennef, S. 29 - 35
2010 (1)
- Parajka, J., Kohnová, S., Bálint, G., Barbuc, M., Borga, M., Claps, P., Cheval, S., Dumitrescu, A., Gaume, E., Hlavčová, K., Merz, R., Pfaundler, M., Stancalie, G., Szolgay, J., Blöschl, G. (2010):
Seasonal characteristics of flood regimes across the Alpine–Carpathian range
J. Hydrol. 394 (1-2), 78 - 89 10.1016/j.jhydrol.2010.05.015
Publications (selected)
Rödiger, T., Siebert, Ch., Krause, P., Geyer, St., Mallast, U., Merz, R. (2013) Multi-response calibration of a conceptual hydrological model in the semiarid catchment of Wadial Arab, Jordan, accepted for J. Hydrol.
Meier, Ch., Knoche, M., Merz, R., Weise, St. (2013) Stable isotopes in river waters in the Tajik Pamirs: regional and temporal characteristics, Isotopes in Environmental & Health Studies, in press.
2013
Mallast, U., Siebert, C., Wagner, B., Sauter, M., Gloaguen, R., Geyer, S., Merz, R. (2013) Localisation of groundwater inflow and temporal discharge variability along the Dead Sea using thermal satellite data, Environ Earth Sci 69:587–603, DOI 10.1007/s12665-013-2371-6
Schulz, St., Siebert, Ch., Rödiger, T., Al-Raggad, M., Merz, R. (2013) Application of the water balance model J2000 to estimate groundwater recharge in a semiarid environment – a case study in the Zarqa River catchment, NW-Jordan, Environ Earth Sci 69:605–615, DOI 10.1007/s12665-013-2342-y
McIntyre, N., Ballard, C., Bruen, M., Bulygina, N., Buytaert, W., Cluckie, I., Dunn, S., Ehret, U., Ewen, J., Gelfan, A., Hess, T., Hughes, D., Jackson, B., Kjeldsen, T., Merz, R., Park, J-S., O'Connell, E., O'Donnell, G., Oudin, L., Todini, E., Wagener T. and Wheater, H. (2013) Modelling the hydrological impacts of rural land use change, Hydrolgy Research, in press, doi:10.2166/nh.2013.145.
Viglione, A., Merz, R., Salinas, J. & Blöschl, G. (2013) Flood Frequency Hydrology: 3. Bayesian framework, Water Resour. Res., 49, 1–18, DOI:10.1029/2011WR010782
2012
Brigode, P. Bernardara, P. Gailhard, J., Gravaglia, F. Ribstein, P. & Merz, R. (2012) Optimization of the geopotential heights information used in a rainfall based weather patterns classification over Austria, Intern. Journal of Climatology, DOI:10.1002/joc.3535
M. Rogger, B. Kohl, H. Pirkl, A. Viglione, J. Komma, R. Kirnbauer, R. Merz and G. Blöschl (2012) Runoff models and flood frequency statistics for design flood estimation in Austria - do they tell a consistent story?, J. Hydrol., 10.1016/j.jhydrol.2012.05.068
Rogger, M., Pirkl, H. Viglione, A., Komma, J., Kirnbauer, R., Merz, R. & Blöschl, G. (2012) Step changes in the flood frequency curve – process controls, Water Resour. Res., 48, W05544, doi:10.1029/2011WR011187
Gaal, L., Szolgay, J., Kohnova, S., Parajka, J., Merz, R., Viglione, A., Blöschl, G. (2012) Flood time scales – understanding the interplay of climate and catchment processes through comparative hydrology, Water Resour. Res., 48, W04511, doi:10.1029/2011WR011509,
Viglione, A., Castellarin, A. Rogger, M., Merz, R., & Blöschl, G. (2012) Extreme rainstorms: testing regional envelope curves against stochastically generated events, Water Resour. Res., 48, W01509, doi: 10.1029/2011WR010515.
2011
Blöschl, G., Schöner, W., Kroiß, H., Blaschke, A.P., Böhm. R., Haslinger, K., Kreuzinger, N., Merz, R., Parajka, J., Salinas, J.L., Viglione, A. (2011) Anapssungsstrategien an den Klimawandel für Österreichs Wasserwirtschaft – Ziele und Schlussfolgerungen der Studie für Bund und Länder, Österreichische Wasser- und Abfallwirtschaft, (1-2/2011), 1-11.
Blöschl, G., Viglione, A., Merz, R., Parajka, J. Salinas, J.L., Schöner, W. (2011) Auswirkungen des Klimawandels auf Hochwasser und Niederwasser, Österreichische Wasser- und Abfallwirtschaft, (1-2/2011), 11-21.
Blaschke, A.P., Merz, R., Parajka, J. Salinas, J.L., Blöschl, G. (2011) Auswirkungen des Klimawandels auf das Wasserdargebot von Grund- und Oberflächenwasser, Österreichische Wasser- und Abfallwirtschaft, (1-2/2011), 11-21.
Ley, R. Casper, M.C., Hellbrand, H. & Merz, R. (2011) Catchment Classification by Runoff Behaviour with Self-Organizing Maps (SOM), Hydrology and Earth Syst. Sci. (HESS), 15, 2947-2962, doi:10.5194/hess-15-2947-2011
Rogger, M., Viglione A., Merz, R., Kirnbauer, R., Pirkl, H. & Blöschl, G. (2011) Towards understanding the differences between deterministic and probabilistic flood hazard estimation methods, IAHS Publ. 347, 16-21
Merz, R., Parajka, J. & Blöschl, G. (2011) Time stability of catchment model parameters – implications for climate impact analyses, Water Resour. Res., 47, W02531, doi:10.1029/2010WR009505
2010
Parajka J., Kohnova, S., Bálint G., Barbuc M., Borga M., Claps P., Cheval S., Dumitrescu A. Gaume E., Hlavčová K., Merz R., Pfaundler M., Stancalie G., Szolgay J., Blöschl G. (2010) Seasonal characteristics of flood regimes across the Alpine–Carpathian range Journal of Hydrology, 394, doi:10.1016/j.jhydrol.2010.05.015
2009
Castellarin, A., Merz, R. and Blöschl G. (2009) Probabilistic Envelope Curves for Extreme Rainfall Events; Journal of Hydrology, 378 (3-4) 263-271.
Merz, R., Parajka, J. & Blöschl, G. (2009) Scale effects in conceptual hydrological modelling, Water Resour. Res., 45, W09405, doi:10.1029/2009WR007872.
Norbiato, D., Borga, M., Merz, R., Blöschl, G., Carton, A. (2009) Controls on event runoff coefficients in the eastern Italian Alps, Journal of Hydrology 375, doi:10.1016/j.jhydrol.2009.06.044
Viglione, A., Merz, R. and Blöschl, G. (2009) On the role of the runoff coefficient in the mapping of rainfall to flood return periods, Hydrology and Earth Syst. Sci. (HESS), 13, 577-593.
Merz, R. (2009) Advances in regionalising flood probabilities. (Schumann, A. Hrsg.) “Flood risk assessment and management: How to specify hydrological loads, their consequences and uncertainties”, Springer Sciences, Dordrecht, pp 97-115 DOI: 10.1007/978-90-481-9917-4_6
Parajka, J., Kohnová, S., Merz, R., Szolgay, J., Hlavčová, K., Blöschl, G. (2009) Comparative Analysis of the Seasonality of hydrological characteristics in Slovakia and Austria, Hydrological Science Journal, 54(3),doi: 10.1623/hysj.54.3.456
Merz, R. and G. Blöschl (2009), A regional analysis of event runoff coefficients with respect to climate and catchment characteristics in Austria, Water Resour. Res., 45, W01405, doi:10.1029/2008WR007163.
2008
Merz, R. & Blöschl, G. (2008) Process controls on the statistical flood moments – a data based analysis, Hydrological Processes, DOI: 10.1002/hyp.7168.
Parajka, J., Merz, R., Szolgay, J., Blöschl, G. Kohnova, S. & Hlavcova, K. (2008) A comparison of precipitation and runoff seasonality in Slovakia and Austria, Meterological Journal, 11, 9-14.
Merz, R. & Blöschl, G. (2008) Hochwasserabflüsse in Österreich - das HORA Projekt, Österreichische Wasser- und Abfallwirtschaft, 60(9/10), 129-138.
G. Blöschl & R. Merz (2008) Estimating flood risk in Austria, Slovak Journal of Civil Engineering 16(3), pp. 13-20.
Merz, R. & Blöschl, G. (2008) Flood Frequency Hydrology 1: Temporal, spatial and causal expansion of information, Water Resources Research, 44, W08432, doi:10.1029/2007WR006744.
Merz, R. & Blöschl, G.(2008) Flood Frequency Hydrology 2: Combining data evidence, Water Resources Research, 44, W08433, doi:10.1029/2007WR006745.
Blöschl, G. & Merz, R. (2008) Bestimmung von Bemessungshochwässern gegebener Überschreitungswahrscheinlichkeit – Aspekte einer zeitgemäßen Strategie (Estimating Design Floods of a Given Return Period - Facets of a Contemporary Strategy),Wasserwirtschaft, 98(11), 12-18.
Merz, R. & Blöschl, G. (2008) Informationserweiterung zur Bestimmung von Hochwasserwahrscheinlichkeiten (Extended information basis for the determination of flood probabilities), Hydrologie und Wasserbewirtschaftung, 52(6), 300-309.
Merz, R., Blöschl, G. & Humer, G. (2008) National flood discharge mapping in Austria. Natural Hazards, doi:10.1007/s11069-007-9181-7.
2007
Parajka, J. Blöschl, G., Merz, R. (2007) Regional calibration of catchment models – potential for ungaughed catchments, Water Resources Research, doi: 10.1029/2006WR005271.
Parajka, J., Merz, R. & Blöschl, G. (2007) Uncertainty and multiple objective calibration in regional water balance modelling. Hydrological Processes, doi: 10.1002/hyp.6253.
2006
Merz, R., Blöschl, G. & Parajka, J. (2006) Spatio-temporal variability of event runoff coefficients. Journal of Hydrology, 331, 591-604, doi:10.1016/j.jhydrol.2006.06.008.
Parajka, J., Naeimi, V., Blöschl, G., Wagner, W., Merz, R. & Scipal, K. (2006) Assimilating scatterometer soil moisture data into conceptual hydrologic models at the regional scale. Hydrology and Earth System Sciences (HESS), 10, 353-368.
Merz, R., Blöschl G. & Parajka, J. (2006) Regionalisation methods in Rainfall-runoff modelling using large catchment samples, IAHS Publ. no. 307, S. 117-125.
Merz, R. & G. Blöschl (2006) Ereignisbezogene Abflussbeiwerte. Kartenblatt für Hydrologischer Atlas Österreich. Österreichischer Kunst und Kulturverlag und Bundesministerium für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft, Wien, Wien.
Skøien, J., Merz, R. & Blöschl, G. (2006) Top-Kriging - geostatistics on stream networks. Hydrology and Earth System Sciences (HESS), 10. 277-287.
2005
Parajka, J., Merz, R. & Blöschl, G. (2005) A comparison of regionalisation methods for catchment model parameters. Hydrology and Earth System Sciences (HESS), 9, 157-171.
Sivapalan, M., Blöschl, G., Merz, R. & Gutknecht, D. (2005) Linking flood frequency to long-term water balance: incorporating effects of seasonality. Water Resources Research, 41, W0612, doi:10.1029/2004WR003439
Merz, R., Blöschl, G. & Parajka, J., (2005) Raum-zeitliche Variabilität von Ereignisabflussbeiwerten in Österreich. Hydrologie und Wasserbewirtschaftung, Heft 50(1),S. 2-11.
Parajka, J., Merz, R. & Blöschl, G. (2005) Regionale Wasserbilanzkomponenten für Österreich auf Tagesbasis. Österreichische Wasser- und Abfallwirtschaft, 57, Heft 3/4, 43-56.
Blöschl, G., Merz, R. & Reszler, Ch. (2005) Floods in Austria, Proceedings NATO Conference on extreme hydrological events in Novosibirsk, July 2005, NATO Science Series (78), Springer Verlag, doi. 10.1007/978-1-4020-5741-0_6
Merz, R. & Blöschl, G. (2005) Flood frequency regionalisation – spatial proximity vs. catchment attributes. Journal of Hydrology, 302, 283-306.
2004
Merz, R. & Blöschl, G. (2004) Regionalisation of catchment model parameters. Journal of Hydrology, 287, 95-123.
2003
Merz, R. & Blöschl G. (2003) Regional flood risk - what are the driving processes? In: G. Blöschl, S. Franks, M. Kumagai, K. Musiake, D. Rosbjerg (Eds.) Water Resources Systems - Hydrological Risk, Management and Development (Proc. Sapporo Symp. July 2003. IAHS Publ. no. 281, S. 49-58.
Merz, R. & G. Blöschl (2003) Saisonalität von Niederschlag und Abfluss. Karte 5.3, Hydrologischer Atlas Österreich. Österreichischer Kunst und Kulturverlag und Bundesministerium für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft, Wien.
Merz, R. & G. Blöschl (2003) Normierte mittlere Hochwasserspende. Karte 5.4, Hydrologischer Atlas Österreich. Österreichischer Kunst und Kulturverlag und Bundesministerium für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft, Wien.
Merz, R. & Blöschl, G. (2003) A process typology of regional floods. Water Resources Research, 39, 12; 1340 - 1359.