Academic Journal
Extreme hydrological events and the influence of reservoirs in a highly regulated river basin of northeastern Spain
| العنوان: | Extreme hydrological events and the influence of reservoirs in a highly regulated river basin of northeastern Spain |
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| المؤلفون: | Vicente Serrano, Sergio M., Zabalza-Martínez, Javier, Borràs, G., López-Moreno, Juan I., Pla, Eduard, Pascual, D., Savé, R., Biel, C., Funes, I., Azorín-Molina, César, Sánchez-Lorenzo, Arturo, Martín-Hernández, Natalia, Peña-Gallardo, Marina, Alonso-González, Esteban, Tomás-Burguera, Miquel, El Kenawy, Ahmed M. |
| المساهمون: | Comisión Interministerial de Ciencia y Tecnología, CICYT (España), European Commission, Ministerio de Economía y Competitividad (España), Gobierno de Aragón |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2017 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| مصطلحات موضوعية: | Droughts, Floods, Segre basin, Hydrological trends, Dams, Reservoir effects |
| الوصف: | 20 Pags.,- 13 Figs.- 3 Tabls. Supplementary data associated with this article can be found, in the online version. © 2017 The Author(s). Published by Elsevier B.V. This is an open access article under the license Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ; Study region: The Segre basin (northeastern Spain). Study focus: The Segre basin is extensively regulated, through a dense network of dams, during the second half of the 20th century. This study assessed the impact of river regulation on the evolution of hydroclimatological extreme events across the basin during the past six decades (1950–2013). We assessed whether the occurrence of floods and hydrological droughts has changed, and whether these changes have differed spatially between the headwaters and lower areas ofthe basin. For this purpose, we employed a set of hydroclimatological indices in order to quantify the evolution of the amount as well as the frequency of quantiles of high precipitation and flood events. Changes in these variables were assessed by means of the nonparametric Mann–Kendall Tau coefficient. New hydrological insights: Results reveal a general reduction in the occurrence of extreme precipitation events in the Segre basin from 1950 to 2013, which corresponded to a general reduction in high flows measured at various gauged stations across the basin. While this study demonstrates spatial differences in the decrease of streamflow between the headwaters and the lower parts of the basin, mainly associated with changes in river regulation, there was no reduction in the frequency of the extraordinary floods. Changes in water management practices in the basin have significantly impacted the frequency, duration, and severity of hydrological droughts downstream of the main dams, as a consequence of the intense water regulation to meet water demands for irrigation and livestock farms. Nonetheless, the hydrological response of the headwaters to these droughts differed markedly from that of the lower areas of the ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2214-5818 |
| Relation: | Publisher's version; https://doi.org/10.1016/j.ejrh.2017.01.004; Sí; Vicente-Serrano SM, Zabalza-Martínez J, Borràs G, López-Moreno JI, Pla E, Pascual D, Savé R, Biel C, Funes I, Azorin-Molina C, Sánchez-Lorenzo A, Martín-Hernández N, Peña-Gallardo M, Alonso-González E, Tomás-Burguera M, El Kenawy AM. Extreme hydrological events and the influence of reservoirs in a highly regulated river basin of northeastern Spain. Journal of Hydrology: Regional Studies 12: 13-32 (2017); http://hdl.handle.net/10261/155645; http://dx.doi.org/10.13039/501100003329; http://dx.doi.org/10.13039/501100000780; http://dx.doi.org/10.13039/501100007273; http://dx.doi.org/10.13039/501100010067 |
| DOI: | 10.1016/j.ejrh.2017.01.004 |
| DOI: | 10.13039/501100003329 |
| DOI: | 10.13039/501100000780 |
| DOI: | 10.13039/501100007273 |
| DOI: | 10.13039/501100010067 |
| الاتاحة: | http://hdl.handle.net/10261/155645 https://doi.org/10.1016/j.ejrh.2017.01.004 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100007273 https://doi.org/10.13039/501100010067 |
| Rights: | open |
| رقم الانضمام: | edsbas.F7915D00 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 22145818 |
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| DOI: | 10.1016/j.ejrh.2017.01.004 |