Estimation of Effective Impervious Surface Area of Cochin using Satellite Images

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Estimation of Effective Impervious Surface Area of Cochin using Satellite Images

Show simple item record Harindranathan Nair, M V Smitha, S V Amarnath, A Chitra, S V 2014-08-20T05:30:58Z 2014-08-20T05:30:58Z 2013-02
dc.identifier.issn 2277-2502
dc.description Research Journal of Recent Sciences, Vol. 2(ISC-2012), 241-244 (2013) en_US
dc.description.abstract Urbanization refers to the process in which an increasing proportion of a population lives in cities and suburbs. Urbanization fuels the alteration of the Land use/Land cover pattern of the region including increase in built-up area, leading to imperviousness of the ground surface. With increasing urbanization and population pressures; the impervious areas in the cities are increasing fast. An impervious surface refers to an anthropogenic ally modified surface that prevents water from infiltrating into the soil. Surface imperviousness mapping is important for the studies related to water cycling, water quality, soil erosion, flood water drainage, non-point source pollution, urban heat island effect and urban hydrology. The present study estimates the Total Impervious Area (TIA) of the city of Kochi using high resolution satellite image (LISS IV, 5m. resolution). Additionally the study maps the Effective Impervious Area (EIA) by coupling the capabilities of GIS and Remote Sensing. Land use/Land cover map of the study area was prepared from the LISS IV image acquired for the year 2012. The classes were merged to prepare a map showing pervious and impervious area. Supervised Maximum Likelihood Classification (Supervised MLC),which is a simple but accurate method for image classification, is used in calculating TIA and an overall classification accuracy of 86.33% was obtained. Water bodies are 100% pervious, whereas urban built up area are 100% impervious. Further based on percentage of imperviousness, the Total Impervious Area is categorized into various classes en_US
dc.description.sponsorship Cochin University of Science and Technology en_US
dc.language.iso en en_US
dc.publisher International Science Congress Association en_US
dc.subject Urbanization en_US
dc.subject Impervious surface en_US
dc.subject Remote Sensing and GIS en_US
dc.title Estimation of Effective Impervious Surface Area of Cochin using Satellite Images en_US
dc.type Article en_US

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