Petter Pilesjö
Prefekt
Flood modelling and proposed Blue-Green Solutions – A case study in Lisbon, Portugal
Författare
Redaktör
- E. Parseliunas
- A. Mansourian
- P. Partsinevelos
- J. Suziedelyte-Visockiene
Summary, in English
This study assesses the potential benefit of Blue-Green Solutions (BGS), green rooftops, rain gardens, permeable pavements, and bioswales, in Lisbon, Portugal. These proposed mitigation measures are applied using TFM-DYN (Nilsson et al., 2021) to simulate potential fluvial flooding distributions from a 10- and 50-year rain event.
Water depth of over 30 centimeters can cause damage to infrastructure. The model results show water depths of over 40 centimeters in some parts of the study area for the 10-year return period, raising the need for action. For the 50-year return period even more areas will be affected. These floods can occur at a relatively rapid pace. Four BGS were implemented for flood mitigation. Areas with green roofs and rain gardens showed a lowering in water depth for both return periods. This study shows that even relatively simple data allows for an estimation of urban flooding and the potential effect of BGS for specific locations can easily be determined.
Water depth of over 30 centimeters can cause damage to infrastructure. The model results show water depths of over 40 centimeters in some parts of the study area for the 10-year return period, raising the need for action. For the 50-year return period even more areas will be affected. These floods can occur at a relatively rapid pace. Four BGS were implemented for flood mitigation. Areas with green roofs and rain gardens showed a lowering in water depth for both return periods. This study shows that even relatively simple data allows for an estimation of urban flooding and the potential effect of BGS for specific locations can easily be determined.
Avdelning/ar
- Institutionen för naturgeografi och ekosystemvetenskap
- BECC: Biodiversity and Ecosystem services in a Changing Climate
- Centrum för geografiska informationssystem (GIS-centrum)
- MECW: The Middle East in the Contemporary World
Publiceringsår
2022-06-11
Språk
Engelska
Publikation/Tidskrift/Serie
AGILE GIScience Ser.
Volym
3
Avvikelse
53
Dokumenttyp
Konferensbidrag
Förlag
Copernicus GmbH
Ämne
- Environmental Sciences
- Physical Geography
- Earth Observation
- Other Environmental Engineering
Nyckelord
- flood mitigation
- hydrological model
- pluvial flooding
- TFM-DYN
- Blue-Green Solutions (BGS)
Conference name
25th AGILE Conference on Geographic Information Science
Conference date
2022-06-14 - 2022-06-17
Conference place
Vilnius, Lithuania
Aktiv
Published