Delineating urban, suburban and rural areas using Landsat and DMSP-OLS night-time images Case Study of Hyderabad, India
Roychowdhury, K. and Taubenböck, Hannes and Jones, S.
Delineating urban, suburban and rural areas using Landsat and DMSP-OLS night-time images Case Study of Hyderabad, India.
In: Proceedings of JURSE2011, pp. 33-36.
JURSE 2011, 11.-13.Apr. 2011, München, Deutschland.
The number and size of urban settlements are increasing in all the continents of the world at a rapid pace. Urban sprawl is associated not only with changes in landcover and area, but also ecological, climate and social transformations. Mapping the growth and spread of urban areas is important. Remote sensing has long been used to map human settlements. Today the availability of a large number of satellites and sensors, determining the appropriate image to map urban area is a research area itself. This study compares two satellite images: Landsat Enhanced Thematic Mapper data and Defence Meteorological Satellite Program, Operational Linescan System image to map the urban footprint of the city of Hyderabad, India. Landsat ETM data is captured during the daytime and gives spectral reflectance values while the DMSP-OLS data captures artificial lights from human settlements at night and produces brightness information. The results show an accuracy of more than 90% in the classification and delineation of urban, suburban and rural landcover types. This study shows that in addition to spectral reflectance captured by satellites from different features on the earth surface during the daytime, differences in the degree of brightness of the lights emitted from urban areas at night is also an effective indicator in delineating landcover types.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Delineating urban, suburban and rural areas using Landsat and DMSP-OLS night-time images Case Study of Hyderabad, India|
|Authors||Institution or Email of Authors|
|Roychowdhury, K.||School of Mathematical and Geospatial Sciences, RMIT University, Melbourne, Australia|
|Jones, S.||School of Mathematical and Geospatial Sciences, RMIT University, Melbourne, Australia|
|Date:||11 April 2011|
|Journal or Publication Title:||Proceedings of JURSE2011|
|In ISI Web of Science:||No|
|Page Range:||pp. 33-36|
|Keywords:||Urban remote sensing, classification, urban footprints, DMSP-OLS, Landsat|
|Event Title:||JURSE 2011|
|Event Location:||München, Deutschland|
|Event Type:||international Conference|
|Event Dates:||11.-13.Apr. 2011|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||Space|
|DLR - Program:||W EO - Erdbeobachtung|
|DLR - Research theme (Project):||W - Vorhaben Geowissenschaftl. Fernerkundungs- und GIS-Verfahren (old)|
|Institutes and Institutions:||German Remote Sensing Data Center > Land Surface|
Dr. Hannes Taubenböck
|Deposited On:||09 May 2011 12:44|
|Last Modified:||12 Dec 2013 21:17|
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