Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 541265
Title Tipping points in adaptation to urban flooding under climate change and urban growth : The case of the Dhaka megacity
Author(s) Ahmed, Farhana; Moors, Eddy; Khan, M.S.A.; Warner, Jeroen; Terwisscha van Scheltinga, Catharien
Source Land Use Policy 79 (2018). - ISSN 0264-8377 - p. 496 - 506.
DOI https://doi.org/10.1016/j.landusepol.2018.05.051
Department(s) Water Resources Management
Alterra - Climate change and adaptive land and water management
WASS
Sociology of Development and Change
Water and Food
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Adaptation - Climate change, land use - Flood - Planning - Urban growth
Abstract

Envisioning the future city as the outcome of planned development, several master and strategic plans for Dhaka were prepared. However, these plans, do not adequately address the well-known and combined effects of climate change and unplanned urbanization on urban flooding. Additionally, the spatial planning component is missing in adaptation planning, which broadly concentrates on the climate change. Long-term adaptation strategies should consider both the temporal and spatial extent of flooding. Uncertainties in climate change and urbanization will induce planning failure beyond the Adaptation Tipping Point for flooding exceeding the thresholds of the bio-physical system or the acceptable limits of societal preference. In this paper, a shift is proposed from the current planning practice of single-dimensional ‘Predict and Act’ towards a more resilience-based ‘Monitor and Adapt’ approach. It is prudent to visualize the effects of urbanization and climate change and translate them into strategies for improved adaptation based spatial planning. Here, Dhaka's exposure to floods under different climate change and urban (planned and unplanned) development scenarios is assessed based on acceptable thresholds obtained from plans (top-down defined) and stakeholders (bottom-up perspectives). The scale of effects of these two drivers on urban flooding is exhibited through the zone differentiated flooding extent. While apparently the effect of climate change on flooding is greater than that of unplanned urban developments, both play an important role in instigating tipping points and intensifying risks.

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