干旱区生态环境知识资源中心(Arid): Improving Effective Impervious Estimates to Inform Stormwater Management

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DOI	10.1007/s11269-019-02474-7
	Improving Effective Impervious Estimates to Inform Stormwater Management
	Sultana, Rebeka 1; Mroczek, Mike 2; Sengupta, Ashmita 3; Dallman, Suzanne 2; Stein, Eric D.4
通讯作者	Sultana, Rebeka
来源期刊	WATER RESOURCES MANAGEMENT
ISSN	0920-4741
EISSN	1573-1650
出版年	2020
卷号	34 期号:2 页码:747-762
英文摘要	Sizing stormwater runoff control facilities and their performance relies on the amount of runoff generated from impervious cover in the watershed. Total impervious area (TIA) often overestimates unit runoff values because it fails to account for intervening pervious surfaces which can reduce effective impervious area (EIA) below the TIA. While EIA is a better estimator for designing stormwater control facilities, direct measurement of EIA can be limited to small catchments as the process is rigorous and time intensive. This paper develops an EIA-TIA regression relationship with a single parameter TIA for semi-arid Southern California. TIA of seven watersheds of the region is calculated from 30 m resolution National Land Cover Dataset and EIA is indirectly measured from observed rainfall and runoff data from 2005 to 2007 in study watersheds using three methods - (1) Ordinary Least Square (OLS), (2) Modified Ordinary Least Square (MOLS) and (3) Weighted Least Square (WLS) methods. Results show that a linear relationship between EIA derived from WLS method and estimated watershed TIA meet the sensitivity test requirement and have highest R-2 value. This empirical EIA-TIA relationship is valid for watersheds with TIA greater than 2.56% and estimated EIAs for the study watersheds are between 20 and 50% lower than the TIAs. Using EIA instead of TIA can results in reduced runoff volume and the associated design size of stormwater control devices. This empirical relationship can be applied to other semi-arid watersheds with similar size, land use and other geomorphic characteristics.
英文关键词	Effective impervious area Total impervious area Regression relationship Semi-arid
类型	Article
语种	英语
国家	USA ; Australia
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000507360900002
WOS关键词	LAND-USE ; AREA ; RUNOFF ; INFRASTRUCTURE ; HYDROLOGY ; IMPACTS ; COVER ; ROADS
WOS类目	Engineering, Civil ; Water Resources
WOS研究方向	Engineering ; Water Resources
EI主题词	2020-01-15
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312484
作者单位	1.Calif State Univ Long Beach, Dept Civil Engn & Construct Engn Management, 1250 Bellflower Blvd, Long Beach, CA 90840 USA; 2.Calif State Univ Long Beach, Dept Geog, 1250 Bellflower Blvd, Long Beach, CA 90840 USA; 3.Commonwealth Sci & Ind Res Org, GPO Box 1700, Canberra, ACT 2601, Australia; 4.Southern Calif Coastal Water Res Project, 3535 Harbor Blvd,Suite 110, Costa Mesa, CA 92626 USA
推荐引用方式 GB/T 7714	Sultana, Rebeka,Mroczek, Mike,Sengupta, Ashmita,et al. Improving Effective Impervious Estimates to Inform Stormwater Management[J]. Commonwealth Scientific and Industrial Research Organisation,2020,34(2):747-762.
APA	Sultana, Rebeka,Mroczek, Mike,Sengupta, Ashmita,Dallman, Suzanne,&Stein, Eric D..(2020).Improving Effective Impervious Estimates to Inform Stormwater Management.WATER RESOURCES MANAGEMENT,34(2),747-762.
MLA	Sultana, Rebeka,et al."Improving Effective Impervious Estimates to Inform Stormwater Management".WATER RESOURCES MANAGEMENT 34.2(2020):747-762.