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  4. Low impact development planning and adaptation decision-making under climate change for a xommunity against pluvial flooding
 
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Low impact development planning and adaptation decision-making under climate change for a xommunity against pluvial flooding

Journal
Water
Journal Volume
9
Journal Issue
10
Date Issued
2017
Author(s)
Chen P.-Y.
CHING-PIN TUNG  
Li Y.-H.
DOI
10.3390/w9100756
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/448759
URL
https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85030312828&doi=10.3390%2fw9100756&partnerID=40&md5=2e4ee966561d48982c0f9f4689b67bdf
Abstract
This study integrates and develops methods, namely low impact development (LID) selection method and an LID spatial planning model, to enable decision-making to minimize pluvial flooding for a community. The objective is to minimize the flood risk under the worst case of the design storm within the budget constraints. Design storms in current and future climate scenarios are analyzed as input to the Storm Water Management Model (SWMM). Then, LID practices are selected based on the proposed procedure and a spatial planning model is built to identify the optimal LID layouts using the simulated annealing (SA) algorithm. The lower and upper bounds of the generated rainfall intensities of a five-year 1-h duration design storms for the Hadley Centre Global Environment Model version 2 for the atmosphere and oceans (HadGEM2-AO), the Norwegian Earth System Model (NorESM1-ME), and the CSIRO-Mk3.6.0 Atmosphere-Ocean GCM (CSIRO-Mk3.6.0) during 2021–2040 are derived. The LID selection helps efficiently identify appropriate LID. Results show that nearly no flood occurs under the optimal LID layouts found by the LID spatial planning model. Moreover, it is more optimal to invest in LID in the lower sub-catchments in LID planning when the budget is limited. These methods are generally applicable for a community using LIDs as adaptation measures against pluvial flooding. © 2017 by the authors. Licensee MDPI, Basel, Switzerland.
Subjects
Design storm; Drainage system; Low impact development; Spatial planning model; Storm water management
SDGs

[SDGs]SDG13

Other Subjects
Budget control; Catchments; Climate change; Climate models; Decision making; Earth atmosphere; Rain; Simulated annealing; Storms; Upper atmosphere; Water management; Design storms; Drainage systems; Low impact development; Spatial planning; Storm-water managements; Floods; adaptive management; climate change; cost analysis; decision making; design flood; drainage network; flooding; hydrological modeling; model; rainfall; runoff; simulated annealing; spatial planning; stormwater; sustainable development; water management
Type
journal article

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