M
Markus Hrachowitz
Researcher at Delft University of Technology
Publications - 139
Citations - 7030
Markus Hrachowitz is an academic researcher from Delft University of Technology. The author has contributed to research in topics: Environmental science & Geology. The author has an hindex of 40, co-authored 109 publications receiving 5402 citations. Previous affiliations of Markus Hrachowitz include University of Aberdeen.
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Journal ArticleDOI
A decade of Predictions in Ungauged Basins (PUB)—a review
Markus Hrachowitz,Hubert H. G. Savenije,Günter Blöschl,Jeffrey J. McDonnell,Murugesu Sivapalan,John W. Pomeroy,Berit Arheimer,Theresa Blume,Martyn P. Clark,Uwe Ehret,Fabrizio Fenicia,Jim Freer,Alexander Gelfan,Hoshin V. Gupta,Denis A. Hughes,Rolf Hut,Alberto Montanari,Saket Pande,Doerthe Tetzlaff,Peter Troch,Stefan Uhlenbrook,Thibaut Wagener,Hessel Winsemius,Ross Woods,Erwin Zehe,Christophe Cudennec +25 more
TL;DR: The Prediction in Ungauged Basins (PUB) initiative of the International Association of Hydrological Sciences (IAHS) launched in 2003 and concluded by the PUB Symposium 2012 held in Delft (23-25 October 2012), set out to shift the scientific culture of hydrology towards improved scientific understanding of hydrological processes, as well as associated uncertainties and the development of models with increasing realism and predictive power as discussed by the authors.
Journal ArticleDOI
A precipitation shift from snow towards rain leads to a decrease in streamflow
TL;DR: In this article, the authors apply a water-balance framework to catchments in the United States and find a greater percentage of precipitation as snowfall is associated with greater mean streamflow.
Journal ArticleDOI
Twenty-three unsolved problems in hydrology (UPH)–a community perspective
Günter Blöschl,Marc F. P. Bierkens,António Chambel,Christophe Cudennec,Georgia Destouni,Aldo Fiori,James W. Kirchner,James W. Kirchner,Jeffrey J. McDonnell,Hubert H. G. Savenije,Murugesu Sivapalan,Christine Stumpp,Elena Toth,Elena Volpi,Gemma Carr,Claire Lupton,Jose Luis Salinas,Borbála Széles,Alberto Viglione,Hafzullah Aksoy,Scott T. Allen,Anam Amin,Vazken Andréassian,Berit Arheimer,Santosh K. Aryal,Victor R. Baker,Earl Bardsley,Marlies Barendrecht,Alena Bartosova,Okke Batelaan,Wouter R. Berghuijs,Keith Beven,Theresa Blume,Thom Bogaard,Pablo Borges de Amorim,Michael E. Böttcher,Gilles Boulet,Korbinian Breinl,Mitja Brilly,Luca Brocca,Wouter Buytaert,Attilio Castellarin,Andrea Castelletti,Xiaohong Chen,Yangbo Chen,Yuanfang Chen,Peter Chifflard,Pierluigi Claps,Martyn P. Clark,Adrian L. Collins,Barry Croke,Annette Dathe,Paula Cunha David,Felipe P. J. de Barros,Gerrit H. de Rooij,Giuliano Di Baldassarre,Jessica M. Driscoll,Doris Duethmann,Ravindra Dwivedi,Ebru Eris,William H. Farmer,James Feiccabrino,Grant Ferguson,Ennio Ferrari,Stefano Ferraris,Benjamin Fersch,David C. Finger,Laura Foglia,Keirnan Fowler,B. I. Gartsman,Simon Gascoin,Eric Gaume,Alexander Gelfan,Alexander Gelfan,Josie Geris,Shervan Gharari,Tom Gleeson,Miriam Glendell,Alena Gonzalez Bevacqua,María P. González-Dugo,Salvatore Grimaldi,Akhilendra Bhushan Gupta,Björn Guse,Dawei Han,David M. Hannah,Adrian A. Harpold,Stefan Haun,Kate Heal,Kay Helfricht,Mathew Herrnegger,Matthew R. Hipsey,Hana Hlaváčiková,Clara Hohmann,Ladislav Holko,Chris Hopkinson,Markus Hrachowitz,Tissa H. Illangasekare,Azhar Inam,Camyla Innocente,Erkan Istanbulluoglu,Ben Jarihani,Zahra Kalantari,Andis Kalvans,Sonu Khanal,Sina Khatami,Jens Kiesel,Mike Kirkby,Wouter J. M. Knoben,Krzysztof Kochanek,Silvia Kohnová,Alla Kolechkina,Stefan Krause,David K. Kreamer,Heidi Kreibich,Harald Kunstmann,Harald Kunstmann,Holger Lange,Margarida L. R. Liberato,Eric Lindquist,Timothy E. Link,Junguo Liu,Daniel P. Loucks,Charles H. Luce,Gil Mahé,Olga Makarieva,Julien Malard,Shamshagul Mashtayeva,Shreedhar Maskey,Josep Mas-Pla,Maria Mavrova-Guirguinova,Maurizio Mazzoleni,Sebastian H. Mernild,Sebastian H. Mernild,Sebastian H. Mernild,Bruce Misstear,Alberto Montanari,Hannes Müller-Thomy,Alireza Nabizadeh,Fernando Nardi,Christopher M. U. Neale,Nataliia Nesterova,Bakhram Nurtaev,V.O. Odongo,Subhabrata Panda,Saket Pande,Zhonghe Pang,Georgia Papacharalampous,Charles Perrin,Laurent Pfister,Rafael Pimentel,María José Polo,David A. Post,Cristina Prieto Sierra,Maria-Helena Ramos,Maik Renner,J. E. Reynolds,Elena Ridolfi,Riccardo Rigon,Monica Riva,David E. Robertson,Renzo Rosso,Tirthankar Roy,João H.M. Sá,Gianfausto Salvadori,Mel Sandells,Bettina Schaefli,Andreas Schumann,Anna Scolobig,Jan Seibert,Jan Seibert,Eric Servat,Mojtaba Shafiei,Ashish Sharma,Moussa Sidibe,Roy C. Sidle,Thomas Skaugen,Hugh Smith,Sabine M. Spiessl,Lina Stein,Ingelin Steinsland,Ulrich Strasser,Bob Su,Ján Szolgay,David G. Tarboton,Flavia Tauro,Guillaume Thirel,Fuqiang Tian,Rui Tong,Kamshat Tussupova,Hristos Tyralis,Remko Uijlenhoet,Rens van Beek,Ruud van der Ent,Ruud van der Ent,Martine van der Ploeg,Anne Van Loon,Ilja van Meerveld,Ronald van Nooijen,Pieter R. van Oel,Jean-Philippe Vidal,Jana von Freyberg,Jana von Freyberg,Sergiy Vorogushyn,Przemysław Wachniew,Andrew J. Wade,Philip J. Ward,Ida Westerberg,Christopher J. White,Eric F. Wood,Ross Woods,Zongxue Xu,Koray K. Yilmaz,Yongqiang Zhang +212 more
TL;DR: In this article, a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts is described. But despite the diversity of the participants (230 scientists in total), the process revealed much about community priorities and the state of our science: a preference for continuity in research questions rather than radical departures or redirections from past and current work.
Journal ArticleDOI
What can flux tracking teach us about water age distribution patterns and their temporal dynamics
Markus Hrachowitz,Hubert H. G. Savenije,Hubert H. G. Savenije,Thom Bogaard,Thom Bogaard,Doerthe Tetzlaff,Chris Soulsby +6 more
Abstract: The complex interactions of runoff generation processes underlying the hydrological response of streams remain incompletely understood at the catchment scale. Extensive research has demonstrated the utility of tracers for both inferring flow paths distributions and constraining model parameterizations. While useful, the common use of linearity assumptions, i.e. time-invariance and complete mixing, in these studies provides only partial understanding of actual process dynamics. Here we use long term (< 20 yr) precipitation, flow and tracer (chloride) data of three contrasting upland catchments in the Scottish Highlands to inform integrated conceptual models investigating different mixing assumptions. Using the models as diagnostic tools in a functional comparison, water and tracer fluxes were tracked with the objective of characterizing water age distributions in the three catchments and establishing the wetness-dependent temporal dynamics of these distributions. The results highlight the potential importance of partial mixing which is dependent on the hydrological functioning of a catchment. Further, tracking tracer fluxes showed that the various components of a model can be characterized by fundamentally different water age distributions which may be highly sensitive to catchment wetness, available storage, mixing mechanisms, flow path connectivity and the relative importance of the different hydrological processes involved. Flux tracking also revealed that, although negligible for simulating the runoff response, the omission of processes such as interception evaporation can result in considerably biased water age distributions. Finally, the modeling indicated that water age distributions in the three study catchments do have long, power-law tails, which are generated by the interplay of flow path connectivity, the relative importance of different flow paths as well as by the mixing mechanisms involved. In general this study highlights the potential of customized integrated conceptual models, based on multiple mixing assumptions, to infer system internal transport dynamics and their sensitivity to catchment wetness states.
Journal ArticleDOI
A framework to assess the realism of model structures using hydrological signatures
Tanja Euser,Hessel Winsemius,Markus Hrachowitz,Fabrizio Fenicia,Stefan Uhlenbrook,Stefan Uhlenbrook,Hubert H. G. Savenije +6 more
TL;DR: A new evaluation Framework for Assessing the Realism of Model structures (FARM) is described and demonstrated, which suggests that some model structures may reveal the same degree of performance for selected evaluation criteria while showing differences in consistency.