Development of a 1D/2D Urban Flood Model Using the Open-Source Models SWMM and MOHID Land

João Barreiro (), Flávio Santos, Filipa Ferreira, Ramiro Neves and José S. Matos
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João Barreiro: CERIS (Civil Engineering Research and Innovation for Sustainability), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
Flávio Santos: MARETEC (Marine, Environment and Technology Center), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
Filipa Ferreira: CERIS (Civil Engineering Research and Innovation for Sustainability), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
Ramiro Neves: MARETEC (Marine, Environment and Technology Center), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
José S. Matos: CERIS (Civil Engineering Research and Innovation for Sustainability), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal

Sustainability, 2022, vol. 15, issue 1, 1-17

Abstract: Urban pluvial floods are the outcome of the incapacity of drainage systems to convey the runoff generated by intense rainfall events. Cities have been struggling to control such hazards due to several pressures, such as urbanization increase, more frequent experiences of extreme rainfall events, and increases in tide levels. Such pressures demand the study of adaptation strategies, which conventional one-dimensional drainage models fall short of simulating. Thus, 1D/2D models have been emerging with the aim of allowing better integration of key processes for flood modeling, namely, runoff interception by stormwater inlet devices and manhole overflows. The current paper presents a 1D/2D urban flood model based on an offline coupling procedure between the 1D model SWMM and the 2D model MOHID Land. The SWMM/Land model is applied to a synthetic street case study and to a real case study in downtown Albufeira, Portugal. The results obtained for the real case study are coherent with local observations of past flooding events, and the model shows potential for better decision-making regarding urban flood risk management.

Keywords: 1D/2D flood model; MOHID; SWMM; urban drainage; urban flooding (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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