Systemic Nature Of, And Diversification In
Systems Exposed To, Flood Risk
Author(s)
R. Khatibi
Abstract
The landscape of flood risk is being populated by applying the risk concept to a
wide range of flood management systems against a background where rethinking
is driving the shift from flood defence to flood risk management. This is in a
background, where tools, concepts, systems and applications are diversifying by
adapting to varying complexities. It is concerning that inherent interconnections
are overlooked among systems exposed to flood risk from different sources. This
paper aims to stimulate debate on interconnectivity among systems with
exposures to flood risk, refers to this as the systemic flood risk, and recognises
some reciprocity between interconnectivity and diversity.
Keywords: flood, risk, systemic, diversity, descriptive-quantitative risk model.
1 Introduction
Sources and pathways giving rise to flooding are wide, including pluvial inflows
to sewer systems; fluvial flows to natural conveyance river systems; and tidal
and storm surges giving rise to coastal and estuarial inundations. These sources
and pathways were often studied on their own but the summer 2007 floods in the
UK showed that this is no longer tenable and these sources of flooding should be
considered together. For instance, the Pitt Report [1] states \“They’re all pointing
the finger at each other, saying you’re responsible – one party’s blaming
another.” This signifies the need for considering the various sources of flooding
and their collective impacts. The paper focuses on the interconnection among
systems exposed to flood risk, and refers to this as the \“systemic” flood risk.
The timeline in the evolution of the concept of flood risk shows a series of
generic steps, each of which would have a bearing on the systemic nature of
Keywords
flood, risk, systemic, diversity, descriptive-quantitative risk model.
Related Book
Other papers in this volume
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