Trends in flow intermittence for European rivers
Yves Tramblay
(1)
,
Agnieszka Rutkowska
(2)
,
Eric Sauquet
(3)
,
Catherine Sefton
(4)
,
Gregor Laaha
(5)
,
Marzena Osuch
(6)
,
Teresa Albuquerque
(7, 8)
,
Maria Helena Alves
(9)
,
Kazimierz Banasik
(10)
,
Aurelien Beaufort
(3)
,
Luca Brocca
(11)
,
Stefania Camici
(11)
,
Zoltán Csabai
(12, 13)
,
Hamouda Dakhlaoui
(14)
,
Anna Maria Degirolamo
(15)
,
Gerald Dörflinger
(16)
,
Francesc Gallart
(17)
,
Tobias Gauster
(5)
,
Lahoucine Hanich
(18, 19)
,
Silvia Kohnová
(20)
,
Luis Mediero
(21)
,
Ninov Plamen
(22)
,
Simon Parry
(4)
,
Pere Quintana-Seguí
(23)
,
Ourania Tzoraki
(24)
,
T. Datry
(3)
1
HSM -
Hydrosciences Montpellier
2 Agricultural University of Krakow
3 RiverLy - RiverLy - Fonctionnement des hydrosystèmes
4 UKCEH - UK Centre of Ecology and Hydrology
5 BOKU - Universität für Bodenkultur Wien = University of Natural Resources and Life [Vienne, Autriche]
6 PAN - Polska Akademia Nauk = Polish Academy of Sciences = Académie polonaise des sciences
7 IPCB - Istituto per i Polimeri, Compositi e Biomateriali
8 University of Évora [Portugal]
9 PORTUGUESE ENVIRONMENTAL AGENCY PRT
10 SGGW - Warsaw University of Life Sciences
11 IRPI - Istituto di Ricerca per la Protezione Idrogeologica [Perugia]
12 University of Pecs
13 MUNI - Masaryk University [Brno]
14 LR-LMHE ENIT - Laboratoire de Modélisation en Hydraulique et Environnement [Tunis]
15 CNR - National Research Council of Italy | Consiglio Nazionale delle Ricerche
16 WATER DEVELOPMENT DEPARTMENT NICOSIA CYP
17 CSIC - Consejo Superior de Investigaciones Científicas [Spain]
18 UCA - Université Cadi Ayyad [Marrakech]
19 UM6P - Université Mohammed VI Polytechnique [Ben Guerir]
20 STU - Slovak University of Technology in Bratislava
21 UPM - Universidad Politécnica de Madrid
22 BAS - Bulgarian Academy of Sciences
23 URL - Universitat Ramon Llull [Barcelona]
24 University of the Aegean
2 Agricultural University of Krakow
3 RiverLy - RiverLy - Fonctionnement des hydrosystèmes
4 UKCEH - UK Centre of Ecology and Hydrology
5 BOKU - Universität für Bodenkultur Wien = University of Natural Resources and Life [Vienne, Autriche]
6 PAN - Polska Akademia Nauk = Polish Academy of Sciences = Académie polonaise des sciences
7 IPCB - Istituto per i Polimeri, Compositi e Biomateriali
8 University of Évora [Portugal]
9 PORTUGUESE ENVIRONMENTAL AGENCY PRT
10 SGGW - Warsaw University of Life Sciences
11 IRPI - Istituto di Ricerca per la Protezione Idrogeologica [Perugia]
12 University of Pecs
13 MUNI - Masaryk University [Brno]
14 LR-LMHE ENIT - Laboratoire de Modélisation en Hydraulique et Environnement [Tunis]
15 CNR - National Research Council of Italy | Consiglio Nazionale delle Ricerche
16 WATER DEVELOPMENT DEPARTMENT NICOSIA CYP
17 CSIC - Consejo Superior de Investigaciones Científicas [Spain]
18 UCA - Université Cadi Ayyad [Marrakech]
19 UM6P - Université Mohammed VI Polytechnique [Ben Guerir]
20 STU - Slovak University of Technology in Bratislava
21 UPM - Universidad Politécnica de Madrid
22 BAS - Bulgarian Academy of Sciences
23 URL - Universitat Ramon Llull [Barcelona]
24 University of the Aegean
Yves Tramblay
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Eric Sauquet
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Luca Brocca
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- ORCID : 0000-0002-9080-260X
Pere Quintana-Seguí
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- ORCID : 0000-0002-7107-9671
T. Datry
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Résumé
Intermittent rivers are prevalent in many countries across Europe, but little is known about the temporal evolution of intermittence and its relationship with climate variability. Trend analysis of the annual and seasonal number of zero-flow days, the maximum duration of dry spells and the mean date of the zero-flow events is performed on a database of 452 rivers with varying degrees of intermittence between 1970 and 2010. The relationships between flow intermittence and climate are investigated using the standardized precipitation evapotranspiration index (SPEI) and climate indices describing large-scale atmospheric circulation. The results indicate a strong spatial variability of the seasonal patterns of intermittence and the annual and seasonal number of zero-flow days, highlighting the controls exerted by local catchment properties. Most of the detected trends indicate an increasing number of zero-flow days, which also tend to occur earlier in the year, particularly in southern Europe. The SPEI is found to be strongly related to the annual and seasonal zero-flow day occurrence in more than half of the stations for different accumulation times between 12 and 24 months. Conversely, there is a weaker dependence of river intermittence with large-scale circulation indices. Overall, these results suggest increased water stress in intermittent rivers that may affect their biota and biochemistry and also reduce available water resources.