Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.ejrh.2024.101698
Licence creative commons licence
Title (Primary) Setting an environmental flow regime under climate change in a data-limited Mediterranean basin with temporary river
Author Leone, M.; Gentile, F.; Lo Porto, A.; Ricci, G.F.; Schürz, C.; Strauch, M. ORCID logo ; Volk, M.; De Girolamo, A.M.
Source Titel Journal of Hydrology: Regional Studies
Year 2024
Department CLE
Volume 52
Page From art. 101698
Language englisch
Topic T5 Future Landscapes
Keywords Environmental Flows; SWAT+; Temporary rivers; Modeling low flows; Indicators of Hydrological Alterations (IHAs); Climate Change
Abstract Study region
Catchment in Southern Italy.
Study focus
Mediterranean waterways are commonly non-perennial; they are vulnerable to climate change (CC). Their management is particularly complex due to limited data availability. This work aims to develop a methodology for setting an Environmental Flow regime (E-Flows) for a temporary river (Locone, Italy) under limited data availability and under CC. As observed long-term time series of streamflow under natural conditions were not available, the Soil and Water Assessment Tool model (SWAT+) was applied to simulate the daily streamflow for the baseline period (1980–2010) and future (2020–2050) based on observed and model climate projections, respectively. A specific workflow was developed for model calibration focusing on the low flows. The hydrological regime was characterized by means of Indicators of Hydrological Alteration (IHAs), whereas the Range of Variability Approach (RVA) was applied to define the E-Flows.
New hydrological insights for the region
The basin is experiencing a statistically significant increase in the air temperatures observed from 1971 to 2020, which is also predicted to continue in the future. Consequently, the average annual streamflow and monthly streamflow in winter and spring is expected to decrease. The calibration, based on a multi-objective model evaluation, improved the low-flow simulation. The detected differences in IHAs for the predicted periods should be considered in future water management when setting E-Flows for temporary rivers.
Persistent UFZ Identifier
Leone, M., Gentile, F., Lo Porto, A., Ricci, G.F., Schürz, C., Strauch, M., Volk, M., De Girolamo, A.M. (2024):
Setting an environmental flow regime under climate change in a data-limited Mediterranean basin with temporary river
J. Hydrol. Reg. Stud. 52 , art. 101698 10.1016/j.ejrh.2024.101698