remote sensing

Topics: Urbanization, Urban area, City Pages: 9 (2619 words) Published: November 24, 2013
Urbanization is one of the most powerful and visible anthropogenic forces on Earth. Since the second half of the twentieth century, the world has experienced its fastest rate of urbanization, particularly in developing countries. Urbanization refers to the increase in population, density, or extent of cities over time. Dramatic urban expansion was found with similar degree of cropland decrease. Urban expansion caused evident environmental impacts on local runoff and water quality. This study allows to make informed decisions on environmental and resource management issues. Geographic Information Systems (GIS) is an powerful and cost-effective tools for assessing the spatial and temporal dynamics of LULC. Rapid urbanization has greatly accelerated economic and social development, and global cities are engines of economic growth and centers of innovation for the global economy, but urbanization has also created numerous environmental problems ranging from the local to the global scale, including increased air and water pollution and decreased water supply, local climate alteration and increased energy demands, insufficient housing and sanitation facilities and traffic congestion, and a major reduction in natural vegetation production and carbon storage. Thus, the identification and assessment of environmental impacts as a result of modern urbanization have become a top priority and many recent studies have been conducted with the goal of better understanding the impacts and issues related to urbanization.

The specific research objectives of this project are as follows: To assess the demographic profile of Erode;
To assess the land use/land cover of Erode during 1990-2010; To explore the characteristics of LULC changes and characterize the underlying driving forces in Erode City by making use of remotely sensed data and socio-economic information. To make clear and evaluate the LULC changes between 1980 and 2010. To explore the spatial and temporal characteristics of urban expansion in this period. To analyze the driving forces of land use change and urban expansion. To analyze the environmental effects.

To enumerate the suitable location for the further expansion of the city. To enumerate the urban effects on environment.

Dramatic urban expansion was found with similar degree of cropland decrease. Urban expansion caused evident environmental impacts on local runoff and water quality. This study allows to make informed decisions on environmental and resource management issues.

Identification of favorable peripheral location for further urban expansion. Adequate transport system allows timely and affordable delivery of basic services such as health,
connect communities to market and
Enhance mobility and scope for employment, etc.
The development of an efficient public transport system such as roads and fly overs.

This chapter describes the review of literature on the change of land use and land cover changes due to the urbanization. 2.2Literature Review
Ashraf M. Dewan , Yasushi Yamaguchi b. Evaluates land use/cover changes and urban expansion in Greater Dhaka, Bangladesh, between 1975 and 2003 using satellite images and socio-economic data. Spatial and temporal dynamics of land use/cover changes were quantified using three Landsat images, a supervised classification algorithm and the post-classification change detection technique in GIS. Urban land expansion has been largely driven by elevation, population growth and economic development. Linli Cui a, Jun Shi b. Analyzes the processes and characteristics of urbanization in Shanghai, focusing on the population and land use and land cover (LULC) change, and its correlation with the evolution of climatic and...

References: A.M. Dewan, Y. Yamaguchi / Applied Geography 29 (2009) (390–401).
Linli Cui, Jun Shi / Urban Climate 2 (2012) (1–15).
Fei Yuan, ASPRS 2007 Annual Conference Tampa, Florida, May 7-11, 2007.
Geographic Information for Planning 2nd FIG Regional Conference, Marrakech, Morocco, December 2-5, 2003.
E. Merem, S. Yerramilli, C. Richardson, J. Wesley, T.Walker, D. Foster, J. Williams, C. Romarno and E. Nwagboso, Journal of Environmental Science and Engineering, 5 (2011) (1624-1641).
De Sherbiniin, A., A. Rahman, A. Barbieri, J.C. Fotso, and Y. Zhu (eds.). 2009. Urban Population-Environment Dynamics in the Developing World: Case Studies and Lessons Learned. Paris: Committee for International Cooperation in National Research in Demography (CICRED) (316 pages).
Shanmugam Tamilenthi and Rajagopalan Baskaran, 2011 International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies.
Punithavathi, J and Baskaran, R International Journal of Current Research Vol. 3, Issue, 10, pp.237-244, September, 2011.
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