Assessments of Hangzhou urban growth near the Xixi wetland using remote sensing data

Qian Cheng

doi:10.1117/12.812726

5 November 2008 Assessments of Hangzhou urban growth near the Xixi wetland using remote sensing data

Qian Cheng

Proceedings Volume 7144, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics; 71440W (2008) https://doi.org/10.1117/12.812726
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

This study has demonstrated that quantification of subpixel percent imperviousness over time provides a good estimate of urban LCLU change. Furthermore, the combination of Landsat satellite data and high-resolution Quickbird imagery provides the necessary spatial information needed to support subpixel impervious change detection. Subpixel percent imperviousness mapping also provides more information on the spatial extent and intensity of urban LCLU change. This approach provides considerable flexibility in capturing the heterogeneity of urban landcover characteristics. Quantification of urbanization through mapping impervious surface change provides useful data for urban dynamic simulation including model calibration and validation. Regrouped and categorized sub-pixel ISA data to remove uncertainties for a small portion of total ISA pixels was performed. After regrouped and categorized sub-pixel ISA data to remove uncertainties for a small portion of total ISA pixels, the model was used to simulate the historical development of impervious surfaces in the Hangzhou. After the calibration process, the best parameters that matched current and historical growth patterns were selected from different urban density change predictions. The model was then used to make analyze of impervious surface. The results showed lower density urban development to be widespread throughout the wetland, whereas much of the medium to high-density urban development have occurred in proximity to existing urban centers.

Citation Download Citation

Qian Cheng "Assessments of Hangzhou urban growth near the Xixi wetland using remote sensing data", Proc. SPIE 7144, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: The Built Environment and Its Dynamics, 71440W (5 November 2008); https://doi.org/10.1117/12.812726

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Data modeling

Calibration

Remote sensing

Earth observing sensors

Landsat

Associative arrays

Reflectivity

Show All Keywords

Keywords/Phrases

Search In:

Publication Years