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Journal of Applied Remote Sensing • Open Access

Using long time series of Landsat data to monitor impervious surface dynamics: a case study in the Zhoushan Islands
Author(s): Xiaoping Zhang; Delu Pan; Jianyu Chen; Yuanzeng Zhan; Zhihua Mao

Paper Abstract

Islands are an important part of the marine ecosystem. Increasing impervious surfaces in the Zhoushan Islands due to new development and increased population have an ecological impact on the runoff and water quality. Based on time-series classification and the complement of vegetation fraction in urban regions, Landsat thematic mapper and other high-resolution satellite images were applied to monitor the dynamics of impervious surface area (ISA) in the Zhoushan Islands from 1986 to 2011. Landsat-derived ISA results were validated by the high-resolution Worldview-2 and aerial photographs. The validation shows that mean relative errors of these ISA maps are <15 % . The results reveal that the ISA in the Zhoushan Islands increased from 19.2  km2 in 1986 to 86.5  km2 in 2011, and the period from 2006 to 2011 had the fastest expansion rate of 5.59  km2 per year. The major land conversions to high densities of ISA were from the tidal zone and arable lands. The expansions of ISA were unevenly distributed and most of them were located along the periphery of these islands. Time-series maps revealed that ISA expansions happened continuously over the last 25 years. Our analysis indicated that the policy and the topography were the dominant factors controlling the spatial patterns of ISA and its expansions in the Zhoushan Islands. With continuous urbanization processes, the rapid ISA expansions may not be stopped in the near feature.

Paper Details

Date Published: 28 August 2013
PDF: 14 pages
J. Appl. Remote Sens. 7(1) 073515 doi: 10.1117/1.JRS.7.073515
Published in: Journal of Applied Remote Sensing Volume 7, Issue 1
Show Author Affiliations
Xiaoping Zhang, Wuhan Univ. (China)
Delu Pan, The Second Institute of Oceanography, SOA (China)
Jianyu Chen, The Second Institute of Oceanography, SOA (China)
Yuanzeng Zhan, The Second Institute of Oceanography, SOA (China)
Zhihua Mao, The Second Institute of Oceanography, SOA (China)


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