Twenty-three Unsolved Problems in Hydrology (UPH): a community perspective

Günter Blöschl; Marc F.P. Bierkens; Antonio Chambel; Christophe Cudennec; Georgia Destouni; Aldo Fiori; James W. Kirchner; Jeff J. McDonnell; Hubert H.G. Savenije; Murugesu Sivapalan; Christine Stumpp; Elena Toth; Elena Volpi; Gemma Carr; Claire Lupton; Josè Salinas; Borbála Széles; Alberto Viglione; Hafzullah Aksoy; Scott T. Allen; Anam Amin; Vazken Andréassian; Berit Arheimer; Santosh Aryal; Victor Baker; Earl Bardsley; Marlies H. 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 Clark; Adrian Collins; Barry Croke; Annette Dathe; Paula C. David; Felipe P. J. de Barros; Gerrit de Rooij; Giuliano Di Baldassarre; Jessica M. Driscoll; Doris Düthmann; Ravindra Dwivedi; Ebru Eris; William H. Farmer; James Feiccabrino; Grant Ferguson; Ennio Ferrari; Stefano Ferraris; Benjamin Fersch; David Finger; Laura Foglia; Keirnan Fowler; Boris Gartsman; Simon Gascoin; Eric Gaume; Alexander Gelfan; Josie Geris; Shervan Gharari; Tom Gleeson; Miriam Glendell; Alena Gonzalez Bevacqua; María P. González-Dugo; Salvatore Grimaldi; A. B. Gupta; Björn Guse; Dawei Han; David Hannah; Adrian Harpold; Stefan Haun; Kate Heal; Kay Helfricht; Mathew Herrnegger; Matthew Hipsey; Hana Hlaváčiková; Clara Hohmann; Ladislav Holko; Christopher 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 Knoben; Krzysztof Kochanek; Silvia Kohnova; Alla Kolechkina; Stefan Krause; David Kreamer; Heidi Kreibich; Harald Kunstmann; Holger Lange; Margarida L. R. Liberato; Eric Lindquist; Timothy Link; Junguo Liu; Daniel Peter Loucks; Charles Luce; Gil Mahé; Olga Makarieva; Julien Malard; Shamshagul Mashtayeva; Shreedhar Maskey; Josep Mas-Pla; Maria Mavrova-Guirguinova; Maurizio Mazzoleni; Sebastian Mernild; Bruce Dudley Misstear; Alberto Montanari; Hannes Müller-Thomy; Alireza Nabizadeh; Fernando Nardi; Christopher Neal; Nataliia Nesterova; Bakhram Nurtaev; Vincent Odongo; Subhabrata Panda; Saket Pande; Zhonghe Pang; Georgia Papacharalampous; Charles Perrin; Laurent Pfister; Rafael Pimentel; María J. Polo; David Post; Cristina Prieto Sierra; Maria-Helena Ramos; Maik Renner; José Eduardo Reynolds; Elena Ridolfi; Riccardo Rigon; Monica Riva; David Robertson; Renzo Rosso; Tirthankar Roy; João H.M. Sá; Gianfausto Salvadori; Mel Sandells; Bettina Schaefli; Andreas Schumann; Anna Scolobig; 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; Jan Szolgay; David Tarboton; Flavia Tauro; Guillaume Thirel; Fuqiang Tian; Rui Tong; Kamshat Tussupova; Hristos Tyralis; Remko Uijlenhoet; Rens van Beek; Ruud J. van der Ent; Martine van der Ploeg; Anne F. Van Loon; Ilja van Meerveld; Ronald van Nooijen; Pieter R Van Oel; Jean-Philippe Vidal; Jana von Freyberg; Sergiy Vorogushyn; Przemyslaw Wachniew; Andrew Wade; Philip Ward; Ida Westerberg; Christopher White; Eric F. Wood; Ross Woods; Zongxue Xu; Koray K. Yilmaz; Yongqiang Zhang

doi:10.1080/02626667.2019.1620507

Twenty-three Unsolved Problems in Hydrology (UPH): a community perspective

Günter Blöschl (Corresponding Author), Marc F.P. Bierkens, Antonio Chambel, Christophe Cudennec, Georgia Destouni, Aldo Fiori, James W. Kirchner, Jeff J. McDonnell, Hubert H.G. Savenije, Murugesu Sivapalan, Christine Stumpp, Elena Toth, Elena Volpi, Gemma Carr, Claire Lupton, Josè Salinas, Borbála Széles, Alberto Viglione, Hafzullah Aksoy, Scott T. AllenAnam Amin, Vazken Andréassian, Berit Arheimer, Santosh Aryal, Victor Baker, Earl Bardsley, Marlies H. 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 Clark, Adrian Collins, Barry Croke, Annette Dathe, Paula C. David, Felipe P. J. de Barros, Gerrit de Rooij, Giuliano Di Baldassarre, Jessica M. Driscoll, Doris Düthmann, Ravindra Dwivedi, Ebru Eris, William H. Farmer, James Feiccabrino, Grant Ferguson, Ennio Ferrari, Stefano Ferraris, Benjamin Fersch, David Finger, Laura Foglia, Keirnan Fowler, Boris Gartsman, Simon Gascoin, Eric Gaume, Alexander Gelfan, Josie Geris, Shervan Gharari, Tom Gleeson, Miriam Glendell, Alena Gonzalez Bevacqua, María P. González-Dugo, Salvatore Grimaldi, A. B. Gupta, Björn Guse, Dawei Han, David Hannah, Adrian Harpold, Stefan Haun, Kate Heal, Kay Helfricht, Mathew Herrnegger, Matthew Hipsey, Hana Hlaváčiková, Clara Hohmann, Ladislav Holko, Christopher 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 Knoben, Krzysztof Kochanek, Silvia Kohnova, Alla Kolechkina, Stefan Krause, David Kreamer, Heidi Kreibich, Harald Kunstmann, Holger Lange, Margarida L. R. Liberato, Eric Lindquist, Timothy Link, Junguo Liu, Daniel Peter Loucks, Charles Luce, Gil Mahé, Olga Makarieva, Julien Malard, Shamshagul Mashtayeva, Shreedhar Maskey, Josep Mas-Pla, Maria Mavrova-Guirguinova, Maurizio Mazzoleni, Sebastian Mernild, Bruce Dudley Misstear, Alberto Montanari, Hannes Müller-Thomy, Alireza Nabizadeh, Fernando Nardi, Christopher Neal, Nataliia Nesterova, Bakhram Nurtaev, Vincent Odongo, Subhabrata Panda, Saket Pande, Zhonghe Pang, Georgia Papacharalampous, Charles Perrin, Laurent Pfister, Rafael Pimentel, María J. Polo, David Post, Cristina Prieto Sierra, Maria-Helena Ramos, Maik Renner, José Eduardo Reynolds, Elena Ridolfi, Riccardo Rigon, Monica Riva, David Robertson, Renzo Rosso, Tirthankar Roy, João H.M. Sá, Gianfausto Salvadori, Mel Sandells, Bettina Schaefli, Andreas Schumann, Anna Scolobig, 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, Jan Szolgay, David Tarboton, Flavia Tauro, Guillaume Thirel, Fuqiang Tian, Rui Tong, Kamshat Tussupova, Hristos Tyralis, Remko Uijlenhoet, Rens van Beek, Ruud J. van der Ent, Martine van der Ploeg, Anne F. Van Loon, Ilja van Meerveld, Ronald van Nooijen, Pieter R Van Oel, Jean-Philippe Vidal, Jana von Freyberg, Sergiy Vorogushyn, Przemyslaw Wachniew, Andrew Wade, Philip Ward, Ida Westerberg, Christopher White, Eric F. Wood, Ross Woods, Zongxue Xu, Koray K. Yilmaz, Yongqiang Zhang

Geography & Environment

Vienna University of Technology

Research output: Contribution to journal › Article › peer-review

465 Citations (Scopus)

26 Downloads (Pure)

Abstract

This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultation through on-line media, followed by two workshops through which a large number of potential science questions were collated, prioritised, and synthesised. In spite of 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. Questions remain focussed on process-based understanding of hydrological variability and causality at all space and time scales. Increased attention to environmental change drives a new emphasis on understanding how change propagates across interfaces within the hydrological system and across disciplinary boundaries. In particular, the expansion of the human footprint raises a new set of questions related to human interactions with nature and water cycle feedbacks in the context of complex water management problems. We hope that this reflection and synthesis of the 23 unsolved problems in hydrology will help guide research efforts for some years to come.

Original language	English
Pages (from-to)	1141-1158
Number of pages	19
Journal	Hydrological Sciences Journal
Volume	64
Issue number	10
Early online date	2 Jul 2019
DOIs	https://doi.org/10.1080/02626667.2019.1620507
Publication status	Published - 2019

Bibliographical note

Acknowledgements
We would like to thank the members of the IAHS, EGU, AGU and IAH for supporting this initiative. The LinkedIn group and overall secretariat was hosted by the IAHS, the Splinter meeting by EGU and the Vienna Catchment Science Symposium by the Vienna Doctoral Programme on Water Resource Systems (DK W1219-N28) funded by the Austrian Science Funds (FWF).

Keywords

hydrology
science questions
research agenda
interdisciplinary
knowledge gaps

Access to Document

10.1080/02626667.2019.1620507Licence: CC BY-NC-ND

Twenty three unsolved problems in hydrology UPH a community perspective
© 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way
Final published version, 2.53 MBLicence: CC BY-NC-ND

Cite this

Blöschl, G., Bierkens, M. F. P., Chambel, A., Cudennec, C., Destouni, G., Fiori, A., Kirchner, J. W., McDonnell, J. J., Savenije, H. H. G., Sivapalan, M., Stumpp, C., Toth, E., Volpi, E., Carr, G., Lupton, C., Salinas, J., Széles, B., Viglione, A., Aksoy, H., ... Zhang, Y. (2019). Twenty-three Unsolved Problems in Hydrology (UPH): a community perspective. Hydrological Sciences Journal, 64(10), 1141-1158. https://doi.org/10.1080/02626667.2019.1620507

Blöschl, G, Bierkens, MFP, Chambel, A, Cudennec, C, Destouni, G, Fiori, A, Kirchner, JW, McDonnell, JJ, Savenije, HHG, Sivapalan, M, Stumpp, C, Toth, E, Volpi, E, Carr, G, Lupton, C, Salinas, J, Széles, B, Viglione, A, Aksoy, H, Allen, ST, Amin, A, Andréassian, V, Arheimer, B, Aryal, S, Baker, V, Bardsley, E, Barendrecht, MH, Bartosova, A, Batelaan, O, Berghuijs, WR, Beven, K, Blume, T, Bogaard, T, Borges de Amorim, P, Böttcher, ME, Boulet, G, Breinl, K, Brilly, M, Brocca, L, Buytaert, W, Castellarin, A, Castelletti, A, Chen, X, Chen, Y, Chen, Y, Chifflard, P, Claps, P, Clark, M, Collins, A, Croke, B, Dathe, A, David, PC, de Barros, FPJ, de Rooij, G, Di Baldassarre, G, Driscoll, JM, Düthmann, D, Dwivedi, R, Eris, E, Farmer, WH, Feiccabrino, J, Ferguson, G, Ferrari, E, Ferraris, S, Fersch, B, Finger, D, Foglia, L, Fowler, K, Gartsman, B, Gascoin, S, Gaume, E, Gelfan, A, Geris, J, Gharari, S, Gleeson, T, Glendell, M, Gonzalez Bevacqua, A, González-Dugo, MP, Grimaldi, S, Gupta, AB, Guse, B, Han, D, Hannah, D, Harpold, A, Haun, S, Heal, K, Helfricht, K, Herrnegger, M, Hipsey, M, Hlaváčiková, H, Hohmann, C, Holko, L, Hopkinson, C, Hrachowitz, M, Illangasekare, TH, Inam, A, Innocente, C, Istanbulluoglu, E, Jarihani, B, Kalantari, Z, Kalvans, A, Khanal, S, Khatami, S, Kiesel, J, Kirkby, M, Knoben, W, Kochanek, K, Kohnova, S, Kolechkina, A, Krause, S, Kreamer, D, Kreibich, H, Kunstmann, H, Lange, H, Liberato, MLR, Lindquist, E, Link, T, Liu, J, Loucks, DP, Luce, C, Mahé, G, Makarieva, O, Malard, J, Mashtayeva, S, Maskey, S, Mas-Pla, J, Mavrova-Guirguinova, M, Mazzoleni, M, Mernild, S, Misstear, BD, Montanari, A, Müller-Thomy, H, Nabizadeh, A, Nardi, F, Neal, C, Nesterova, N, Nurtaev, B, Odongo, V, Panda, S, Pande, S, Pang, Z, Papacharalampous, G, Perrin, C, Pfister, L, Pimentel, R, Polo, MJ, Post, D, Prieto Sierra, C, Ramos, M-H, Renner, M, Reynolds, JE, Ridolfi, E, Rigon, R, Riva, M, Robertson, D, Rosso, R, Roy, T, Sá, JHM, Salvadori, G, Sandells, M, Schaefli, B, Schumann, A, Scolobig, A, Seibert, J, Servat, E, Shafiei, M, Sharma, A, Sidibe, M, Sidle, RC, Skaugen, T, Smith, H, Spiessl, SM, Stein, L, Steinsland, I, Strasser, U, Su, B, Szolgay, J, Tarboton, D, Tauro, F, Thirel, G, Tian, F, Tong, R, Tussupova, K, Tyralis, H, Uijlenhoet, R, van Beek, R, van der Ent, RJ, van der Ploeg, M, Van Loon, AF, van Meerveld, I, van Nooijen, R, Van Oel, PR, Vidal, J-P, von Freyberg, J, Vorogushyn, S, Wachniew, P, Wade, A, Ward, P, Westerberg, I, White, C, Wood, EF, Woods, R, Xu, Z, Yilmaz, KK & Zhang, Y 2019, 'Twenty-three Unsolved Problems in Hydrology (UPH): a community perspective', Hydrological Sciences Journal, vol. 64, no. 10, pp. 1141-1158. https://doi.org/10.1080/02626667.2019.1620507

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title = "Twenty-three Unsolved Problems in Hydrology (UPH): a community perspective",

abstract = "This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultation through on-line media, followed by two workshops through which a large number of potential science questions were collated, prioritised, and synthesised. In spite of 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. Questions remain focussed on process-based understanding of hydrological variability and causality at all space and time scales. Increased attention to environmental change drives a new emphasis on understanding how change propagates across interfaces within the hydrological system and across disciplinary boundaries. In particular, the expansion of the human footprint raises a new set of questions related to human interactions with nature and water cycle feedbacks in the context of complex water management problems. We hope that this reflection and synthesis of the 23 unsolved problems in hydrology will help guide research efforts for some years to come.",

keywords = "hydrology, science questions, research agenda, interdisciplinary, knowledge gaps",

author = "G{\"u}nter Bl{\"o}schl and Bierkens, {Marc F.P.} and Antonio Chambel and Christophe Cudennec and Georgia Destouni and Aldo Fiori and Kirchner, {James W.} and McDonnell, {Jeff J.} and Savenije, {Hubert H.G.} and Murugesu Sivapalan and Christine Stumpp and Elena Toth and Elena Volpi and Gemma Carr and Claire Lupton and Jos{\`e} Salinas and Borb{\'a}la Sz{\'e}les and Alberto Viglione and Hafzullah Aksoy and Allen, {Scott T.} and Anam Amin and Vazken Andr{\'e}assian and Berit Arheimer and Santosh Aryal and Victor Baker and Earl Bardsley and Barendrecht, {Marlies H.} and Alena Bartosova and Okke Batelaan and Berghuijs, {Wouter R.} and Keith Beven and Theresa Blume and Thom Bogaard and {Borges de Amorim}, Pablo and B{\"o}ttcher, {Michael E.} and Gilles Boulet and Korbinian Breinl and Mitja Brilly and Luca Brocca and Wouter Buytaert and Attilio Castellarin and Andrea Castelletti and Xiaohong Chen and Yangbo Chen and Yuanfang Chen and Peter Chifflard and Pierluigi Claps and Martyn Clark and Adrian Collins and Barry Croke and Annette Dathe and David, {Paula C.} and {de Barros}, {Felipe P. J.} and {de Rooij}, Gerrit and {Di Baldassarre}, Giuliano and Driscoll, {Jessica M.} and Doris D{\"u}thmann and Ravindra Dwivedi and Ebru Eris and Farmer, {William H.} and James Feiccabrino and Grant Ferguson and Ennio Ferrari and Stefano Ferraris and Benjamin Fersch and David Finger and Laura Foglia and Keirnan Fowler and Boris Gartsman and Simon Gascoin and Eric Gaume and Alexander Gelfan and Josie Geris and Shervan Gharari and Tom Gleeson and Miriam Glendell and {Gonzalez Bevacqua}, Alena and Gonz{\'a}lez-Dugo, {Mar{\'i}a P.} and Salvatore Grimaldi and Gupta, {A. B.} and Bj{\"o}rn Guse and Dawei Han and David Hannah and Adrian Harpold and Stefan Haun and Kate Heal and Kay Helfricht and Mathew Herrnegger and Matthew Hipsey and Hana Hlav{\'a}{\v c}ikov{\'a} and Clara Hohmann and Ladislav Holko and Christopher Hopkinson and Markus Hrachowitz and Illangasekare, {Tissa H.} and Azhar Inam and Camyla Innocente and Erkan Istanbulluoglu and Ben Jarihani and Zahra Kalantari and Andis Kalvans and Sonu Khanal and Sina Khatami and Jens Kiesel and Mike Kirkby and Wouter Knoben and Krzysztof Kochanek and Silvia Kohnova and Alla Kolechkina and Stefan Krause and David Kreamer and Heidi Kreibich and Harald Kunstmann and Holger Lange and Liberato, {Margarida L. R.} and Eric Lindquist and Timothy Link and Junguo Liu and Loucks, {Daniel Peter} and Charles Luce and Gil Mah{\'e} and Olga Makarieva and Julien Malard and Shamshagul Mashtayeva and Shreedhar Maskey and Josep Mas-Pla and Maria Mavrova-Guirguinova and Maurizio Mazzoleni and Sebastian Mernild and Misstear, {Bruce Dudley} and Alberto Montanari and Hannes M{\"u}ller-Thomy and Alireza Nabizadeh and Fernando Nardi and Christopher Neal and Nataliia Nesterova and Bakhram Nurtaev and Vincent Odongo and Subhabrata Panda and Saket Pande and Zhonghe Pang and Georgia Papacharalampous and Charles Perrin and Laurent Pfister and Rafael Pimentel and Polo, {Mar{\'i}a J.} and David Post and {Prieto Sierra}, Cristina and Maria-Helena Ramos and Maik Renner and Reynolds, {Jos{\'e} Eduardo} and Elena Ridolfi and Riccardo Rigon and Monica Riva and David Robertson and Renzo Rosso and Tirthankar Roy and S{\'a}, {Jo{\~a}o H.M.} and Gianfausto Salvadori and Mel Sandells and Bettina Schaefli and Andreas Schumann and Anna Scolobig and Jan Seibert and Eric Servat and Mojtaba Shafiei and Ashish Sharma and Moussa Sidibe and Sidle, {Roy C.} and Thomas Skaugen and Hugh Smith and Spiessl, {Sabine M.} and Lina Stein and Ingelin Steinsland and Ulrich Strasser and Bob Su and Jan Szolgay and David Tarboton and Flavia Tauro and Guillaume Thirel and Fuqiang Tian and Rui Tong and Kamshat Tussupova and Hristos Tyralis and Remko Uijlenhoet and {van Beek}, Rens and {van der Ent}, {Ruud J.} and {van der Ploeg}, Martine and {Van Loon}, {Anne F.} and {van Meerveld}, Ilja and {van Nooijen}, Ronald and {Van Oel}, {Pieter R} and Jean-Philippe Vidal and {von Freyberg}, Jana and Sergiy Vorogushyn and Przemyslaw Wachniew and Andrew Wade and Philip Ward and Ida Westerberg and Christopher White and Wood, {Eric F.} and Ross Woods and Zongxue Xu and Yilmaz, {Koray K.} and Yongqiang Zhang",

note = "Acknowledgements We would like to thank the members of the IAHS, EGU, AGU and IAH for supporting this initiative. The LinkedIn group and overall secretariat was hosted by the IAHS, the Splinter meeting by EGU and the Vienna Catchment Science Symposium by the Vienna Doctoral Programme on Water Resource Systems (DK W1219-N28) funded by the Austrian Science Funds (FWF).",

year = "2019",

doi = "10.1080/02626667.2019.1620507",

language = "English",

volume = "64",

pages = "1141--1158",

journal = "Hydrological Sciences Journal",

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publisher = "Taylor and Francis Ltd.",

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TY - JOUR

T1 - Twenty-three Unsolved Problems in Hydrology (UPH)

T2 - a community perspective

AU - Blöschl, Günter

AU - Bierkens, Marc F.P.

AU - Chambel, Antonio

AU - Cudennec, Christophe

AU - Destouni, Georgia

AU - Fiori, Aldo

AU - Kirchner, James W.

AU - McDonnell, Jeff J.

AU - Savenije, Hubert H.G.

AU - Sivapalan, Murugesu

AU - Stumpp, Christine

AU - Toth, Elena

AU - Volpi, Elena

AU - Carr, Gemma

AU - Lupton, Claire

AU - Salinas, Josè

AU - Széles, Borbála

AU - Viglione, Alberto

AU - Aksoy, Hafzullah

AU - Allen, Scott T.

AU - Amin, Anam

AU - Andréassian, Vazken

AU - Arheimer, Berit

AU - Aryal, Santosh

AU - Baker, Victor

AU - Bardsley, Earl

AU - Barendrecht, Marlies H.

AU - Bartosova, Alena

AU - Batelaan, Okke

AU - Berghuijs, Wouter R.

AU - Beven, Keith

AU - Blume, Theresa

AU - Bogaard, Thom

AU - Borges de Amorim, Pablo

AU - Böttcher, Michael E.

AU - Boulet, Gilles

AU - Breinl, Korbinian

AU - Brilly, Mitja

AU - Brocca, Luca

AU - Buytaert, Wouter

AU - Castellarin, Attilio

AU - Castelletti, Andrea

AU - Chen, Xiaohong

AU - Chen, Yangbo

AU - Chen, Yuanfang

AU - Chifflard, Peter

AU - Claps, Pierluigi

AU - Clark, Martyn

AU - Collins, Adrian

AU - Croke, Barry

AU - Dathe, Annette

AU - David, Paula C.

AU - de Barros, Felipe P. J.

AU - de Rooij, Gerrit

AU - Di Baldassarre, Giuliano

AU - Driscoll, Jessica M.

AU - Düthmann, Doris

AU - Dwivedi, Ravindra

AU - Eris, Ebru

AU - Farmer, William H.

AU - Feiccabrino, James

AU - Ferguson, Grant

AU - Ferrari, Ennio

AU - Ferraris, Stefano

AU - Fersch, Benjamin

AU - Finger, David

AU - Foglia, Laura

AU - Fowler, Keirnan

AU - Gartsman, Boris

AU - Gascoin, Simon

AU - Gaume, Eric

AU - Gelfan, Alexander

AU - Geris, Josie

AU - Gharari, Shervan

AU - Gleeson, Tom

AU - Glendell, Miriam

AU - Gonzalez Bevacqua, Alena

AU - González-Dugo, María P.

AU - Grimaldi, Salvatore

AU - Gupta, A. B.

AU - Guse, Björn

AU - Han, Dawei

AU - Hannah, David

AU - Harpold, Adrian

AU - Haun, Stefan

AU - Heal, Kate

AU - Helfricht, Kay

AU - Herrnegger, Mathew

AU - Hipsey, Matthew

AU - Hlaváčiková, Hana

AU - Hohmann, Clara

AU - Holko, Ladislav

AU - Hopkinson, Christopher

AU - Hrachowitz, Markus

AU - Illangasekare, Tissa H.

AU - Inam, Azhar

AU - Innocente, Camyla

AU - Istanbulluoglu, Erkan

AU - Jarihani, Ben

AU - Kalantari, Zahra

AU - Kalvans, Andis

AU - Khanal, Sonu

AU - Khatami, Sina

AU - Kiesel, Jens

AU - Kirkby, Mike

AU - Knoben, Wouter

AU - Kochanek, Krzysztof

AU - Kohnova, Silvia

AU - Kolechkina, Alla

AU - Krause, Stefan

AU - Kreamer, David

AU - Kreibich, Heidi

AU - Kunstmann, Harald

AU - Lange, Holger

AU - Liberato, Margarida L. R.

AU - Lindquist, Eric

AU - Link, Timothy

AU - Liu, Junguo

AU - Loucks, Daniel Peter

AU - Luce, Charles

AU - Mahé, Gil

AU - Makarieva, Olga

AU - Malard, Julien

AU - Mashtayeva, Shamshagul

AU - Maskey, Shreedhar

AU - Mas-Pla, Josep

AU - Mavrova-Guirguinova, Maria

AU - Mazzoleni, Maurizio

AU - Mernild, Sebastian

AU - Misstear, Bruce Dudley

AU - Montanari, Alberto

AU - Müller-Thomy, Hannes

AU - Nabizadeh, Alireza

AU - Nardi, Fernando

AU - Neal, Christopher

AU - Nesterova, Nataliia

AU - Nurtaev, Bakhram

AU - Odongo, Vincent

AU - Panda, Subhabrata

AU - Pande, Saket

AU - Pang, Zhonghe

AU - Papacharalampous, Georgia

AU - Perrin, Charles

AU - Pfister, Laurent

AU - Pimentel, Rafael

AU - Polo, María J.

AU - Post, David

AU - Prieto Sierra, Cristina

AU - Ramos, Maria-Helena

AU - Renner, Maik

AU - Reynolds, José Eduardo

AU - Ridolfi, Elena

AU - Rigon, Riccardo

AU - Riva, Monica

AU - Robertson, David

AU - Rosso, Renzo

AU - Roy, Tirthankar

AU - Sá, João H.M.

AU - Salvadori, Gianfausto

AU - Sandells, Mel

AU - Schaefli, Bettina

AU - Schumann, Andreas

AU - Scolobig, Anna

AU - Seibert, Jan

AU - Servat, Eric

AU - Shafiei, Mojtaba

AU - Sharma, Ashish

AU - Sidibe, Moussa

AU - Sidle, Roy C.

AU - Skaugen, Thomas

AU - Smith, Hugh

AU - Spiessl, Sabine M.

AU - Stein, Lina

AU - Steinsland, Ingelin

AU - Strasser, Ulrich

AU - Su, Bob

AU - Szolgay, Jan

AU - Tarboton, David

AU - Tauro, Flavia

AU - Thirel, Guillaume

AU - Tian, Fuqiang

AU - Tong, Rui

AU - Tussupova, Kamshat

AU - Tyralis, Hristos

AU - Uijlenhoet, Remko

AU - van Beek, Rens

AU - van der Ent, Ruud J.

AU - van der Ploeg, Martine

AU - Van Loon, Anne F.

AU - van Meerveld, Ilja

AU - van Nooijen, Ronald

AU - Van Oel, Pieter R

AU - Vidal, Jean-Philippe

AU - von Freyberg, Jana

AU - Vorogushyn, Sergiy

AU - Wachniew, Przemyslaw

AU - Wade, Andrew

AU - Ward, Philip

AU - Westerberg, Ida

AU - White, Christopher

AU - Wood, Eric F.

AU - Woods, Ross

AU - Xu, Zongxue

AU - Yilmaz, Koray K.

AU - Zhang, Yongqiang

N1 - Acknowledgements We would like to thank the members of the IAHS, EGU, AGU and IAH for supporting this initiative. The LinkedIn group and overall secretariat was hosted by the IAHS, the Splinter meeting by EGU and the Vienna Catchment Science Symposium by the Vienna Doctoral Programme on Water Resource Systems (DK W1219-N28) funded by the Austrian Science Funds (FWF).

PY - 2019

Y1 - 2019

N2 - This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultation through on-line media, followed by two workshops through which a large number of potential science questions were collated, prioritised, and synthesised. In spite of 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. Questions remain focussed on process-based understanding of hydrological variability and causality at all space and time scales. Increased attention to environmental change drives a new emphasis on understanding how change propagates across interfaces within the hydrological system and across disciplinary boundaries. In particular, the expansion of the human footprint raises a new set of questions related to human interactions with nature and water cycle feedbacks in the context of complex water management problems. We hope that this reflection and synthesis of the 23 unsolved problems in hydrology will help guide research efforts for some years to come.

AB - This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultation through on-line media, followed by two workshops through which a large number of potential science questions were collated, prioritised, and synthesised. In spite of 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. Questions remain focussed on process-based understanding of hydrological variability and causality at all space and time scales. Increased attention to environmental change drives a new emphasis on understanding how change propagates across interfaces within the hydrological system and across disciplinary boundaries. In particular, the expansion of the human footprint raises a new set of questions related to human interactions with nature and water cycle feedbacks in the context of complex water management problems. We hope that this reflection and synthesis of the 23 unsolved problems in hydrology will help guide research efforts for some years to come.

KW - hydrology

KW - science questions

KW - research agenda

KW - interdisciplinary

KW - knowledge gaps

UR - http://www.scopus.com/inward/record.url?scp=85068525773&partnerID=8YFLogxK

UR - https://www.tandfonline.com/doi/full/10.1080/02626667.2019.1620507

UR - http://www.mendeley.com/research/twentythree-unsolved-problems-hydrology-uph-community-perspective-1

U2 - 10.1080/02626667.2019.1620507

DO - 10.1080/02626667.2019.1620507

M3 - Article

SN - 0262-6667

VL - 64

SP - 1141

EP - 1158

JO - Hydrological Sciences Journal

JF - Hydrological Sciences Journal

IS - 10

ER -

Twenty-three Unsolved Problems in Hydrology (UPH): a community perspective

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