TY  - JOUR
AU  - S.Ferreira, Carla
AU  - Mourato, Sandra
AU  - Kašanin-Grubin, Milica
AU  - J.D. Ferreira, António
AU  - Destouni, Georgia
AU  - Kalantari, Zahra
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4022
AB  - Urbanization alters natural hydrological processes and enhances runoff, which affects flood hazard. Interest in nature-based solutions (NBS) for sustainable mitigation and adaptation to urban floods is growing, but the magnitudes of NBS effects are still poorly investigated. This study explores the potential of NBS for flood hazard mitigation in a small peri-urban catchment in central Portugal, prone to flash floods driven by urbanization and short but intense rainfall events typical of the Mediterranean region. Flood extent and flood depth are assessed by manually coupling the hydrologic HEC-HMS and hydraulic HEC-RAS models. The coupled model was run for single rainfall events with recurrence periods of 10–, 20–, 50–, and 100–years, considering four simulation scenarios: current conditions (without NBS), and with an upslope NBS, a downslope NBS, and a combination of both. The model-simulation approach provides good estimates of flood magnitude (NSE = 0.91, RMSE = 0.08, MAE = 0.07, R2 = 0.93), and shows that diverting streamflow into abandoned fields has positive impacts in mitigating downslope flood hazard. The implementation of an upslope NBS can decrease the water depth at the catchment outlet by 0.02 m, whereas a downslope NBS can reduce it from 0.10 m to 0.23 m for increasing return periods. Combined upslope and downslope NBS have a marginal additional impact in reducing water depth, ranging from 0.11 m to 0.24 m for 10– and 100–year floods. Decreases in water depth provided by NBS are useful in flood mitigation and adaptation within the peri-urban catchment. A network of NBS, rather than small isolated strategies, needs to be created for efficient flood-risk management at a larger scale.
PB  - MDPI
T2  - Water
T1  - Effectiveness of Nature-Based Solutions in Mitigating Flood Hazard in a Mediterranean Peri-Urban Catchment
VL  - 12
IS  - 10
SP  - 2893
DO  - 10.3390/w12102893
ER  - 

@article{
author = "S.Ferreira, Carla and Mourato, Sandra and Kašanin-Grubin, Milica and J.D. Ferreira, António and Destouni, Georgia and Kalantari, Zahra",
year = "2020",
abstract = "Urbanization alters natural hydrological processes and enhances runoff, which affects flood hazard. Interest in nature-based solutions (NBS) for sustainable mitigation and adaptation to urban floods is growing, but the magnitudes of NBS effects are still poorly investigated. This study explores the potential of NBS for flood hazard mitigation in a small peri-urban catchment in central Portugal, prone to flash floods driven by urbanization and short but intense rainfall events typical of the Mediterranean region. Flood extent and flood depth are assessed by manually coupling the hydrologic HEC-HMS and hydraulic HEC-RAS models. The coupled model was run for single rainfall events with recurrence periods of 10–, 20–, 50–, and 100–years, considering four simulation scenarios: current conditions (without NBS), and with an upslope NBS, a downslope NBS, and a combination of both. The model-simulation approach provides good estimates of flood magnitude (NSE = 0.91, RMSE = 0.08, MAE = 0.07, R2 = 0.93), and shows that diverting streamflow into abandoned fields has positive impacts in mitigating downslope flood hazard. The implementation of an upslope NBS can decrease the water depth at the catchment outlet by 0.02 m, whereas a downslope NBS can reduce it from 0.10 m to 0.23 m for increasing return periods. Combined upslope and downslope NBS have a marginal additional impact in reducing water depth, ranging from 0.11 m to 0.24 m for 10– and 100–year floods. Decreases in water depth provided by NBS are useful in flood mitigation and adaptation within the peri-urban catchment. A network of NBS, rather than small isolated strategies, needs to be created for efficient flood-risk management at a larger scale.",
publisher = "MDPI",
journal = "Water",
title = "Effectiveness of Nature-Based Solutions in Mitigating Flood Hazard in a Mediterranean Peri-Urban Catchment",
volume = "12",
number = "10",
pages = "2893",
doi = "10.3390/w12102893"
}

S.Ferreira, C., Mourato, S., Kašanin-Grubin, M., J.D. Ferreira, A., Destouni, G.,& Kalantari, Z.. (2020). Effectiveness of Nature-Based Solutions in Mitigating Flood Hazard in a Mediterranean Peri-Urban Catchment. in Water
MDPI., 12(10), 2893.
https://doi.org/10.3390/w12102893

S.Ferreira C, Mourato S, Kašanin-Grubin M, J.D. Ferreira A, Destouni G, Kalantari Z. Effectiveness of Nature-Based Solutions in Mitigating Flood Hazard in a Mediterranean Peri-Urban Catchment. in Water. 2020;12(10):2893.
doi:10.3390/w12102893 .

S.Ferreira, Carla, Mourato, Sandra, Kašanin-Grubin, Milica, J.D. Ferreira, António, Destouni, Georgia, Kalantari, Zahra, "Effectiveness of Nature-Based Solutions in Mitigating Flood Hazard in a Mediterranean Peri-Urban Catchment" in Water, 12, no. 10 (2020):2893,
https://doi.org/10.3390/w12102893 . .