Quantitative analysis on the urban flood mitigation effect by the extensive green roof system

Title
Quantitative analysis on the urban flood mitigation effect by the extensive green roof system
Authors
이주영문형준김충일김현우한무영
Keywords
Extensive green roof; Mitigate Urban runoff; Water retaining capacity; Catchment efficient; BMP
Issue Date
2013-10
Publisher
Environmental pollution
Citation
VOL 181, 257-261
Abstract
Extensive green-roof systems are expected to have a synergetic effect in mitigating urban runoff, decreasing temperature and supplying water to a building. Mitigation of runoff through rainwater retention requires the effective design of a green-roof catchment. This study identified how to improve building runoff mitigation through quantitative analysis of an extensive green-roof system. Quantitative analysis of green-roof runoff characteristics indicated that the extensive green roof has a high water-retaining capacity response to rainfall of less than 20 mm/h. As the rainfall intensity increased, the water-retaining capacity decreased. The catchment efficiency of an extensive green roof ranged from 0.44 to 0.52, indicating reduced runoff comparing with efficiency of 0.9 for a concrete roof. Therefore, extensive green roofs are an effective storm water best-management practice and the proposed parameters can be applied to an algorithm for rainwater-harvesting tank design.
URI
http://pubs.kist.re.kr/handle/201004/46660
ISSN
02697491
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE