Floodwater pathways in urban areas: A method to compute porosity fields for anisotropic subgrid models in differential form

•Flood modelling in real urban areas is a challenge for differential anisotropic porosity models.•Direction-dependent, cell-based conveyance porosity is not trivial to estimate.•A method is proposed to extract conveyance porosity fields from building footprints.•Straightforward application to comple...

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Bibliographic Details
Published in:	Journal of hydrology (Amsterdam) Vol. 589; p. 125193
Main Authors:	Ferrari, Alessia, Viero, Daniele P.
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 01.10.2020
Subjects:	algorithms Anisotropic friction anisotropy Conveyance porosity ingredients isotropy momentum porosity Porosity model Porous shallow water equations preferential flow Spatially-distributed porosity field Structured grid Urban flood Urban flood Spatially-distributed porosity field Anisotropic friction Structured grid Porosity model Conveyance porosity Porous shallow water equations
ISSN:	0022-1694, 1879-2707
Online Access:	Get full text
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