The change detection of impervious surface and its impact on runoff in the Qinhuai River Basin, China

Author

Du, Jinkang ; Li, Caili ; Rui, Hanyi ; Li, Qian ; Zheng, Dapeng ; Xu, Youpeng ; Hu, Shunfu

Author_Institution

Sch. of Geographic & Oceanogr. Sci., Nanjing Univ., Nanjing, China

fYear

2011

fDate

24-26 June 2011

Firstpage

1

Lastpage

5

Abstract

The changes of impervious surface from 1986 to 2006 and the relationship between those changes and hydrological response were studied in the Qinhuai River Basin (2631 km²), which is located in the southwest of Jiangsu Province, P. R. China. A series of Landsat imagery during that period was employed to extract impervious area using the Linear Spectral Mixture Analysis. The results showed that impervious area increased from 2.9% in 1986 to 12.1% in 2006. The annual runoff and precipitation of the basin were collected to analyze the relationship between impervious surface area and annual runoff. Based on the regression analysis, it was found that the average annual runoff depth has increased by 26% since 2003 due to the increase of impervious area.

Keywords

geophysical image processing; hydrology; regression analysis; rivers; spectral analysis; Jiangsu Province; Landsat imagery; P. R. China; Qinhuai River Basin; average annual runoff depth; change detection; hydrological response; impervious surface area; linear spectral mixture analysis; regression analysis; Land surface; Mathematical model; Radiometry; Remote sensing; Rivers; Sea surface; Vegetation mapping; Qinhuai River Basin; annual runoff; impervious area;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoinformatics, 2011 19th International Conference on

Conference_Location

Shanghai

ISSN

2161-024X

Print_ISBN

978-1-61284-849-5

Type

conf

DOI

10.1109/GeoInformatics.2011.5981165

Filename

5981165