Urban Sprawl Analysis using Remote Sensing New Delhi, India Ann Jyothis Raj and Alicia L' Simonti Pr

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Urban Sprawl Analysis using Remote Sensing New
Delhi, IndiaAnn Jyothis Raj and Alicia L.
SimontiProfessor Yelena Ogneva-Himmelberger
Source Romanvirdi.com
Change Detection
Abstract In 1975, Delhi had a population of 4.4
million people or 3.3 percent of Indias entire
urban population. In 2000, the city had 12.4
million inhabitants. By 2015, Delhis population
is expected to be 20.9 million, this has
tremendous implications on urban sprawl. This
study examines the extent of urban sprawl in and
around the Union Territory of Delhi over two
decades, using remotely sensed images of 1977 and
1999.
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Methodology
This cross-classification image displays the
differences in land cover from 1977 to 1999.
The purple areas in this image represent change,
whereas the beige represents no change
Results and Discussion The study illustrates
that the areas of change in terms of urban sprawl
are predominately due to loss of both vegetation
and barren land. Additionally, the original
urban areas have become more dense and spreads
outwards into the suburbs. India occupies only
two per cent of the worlds total landmass. Yet
it is home to 15 per cent of the worlds total
population. Urban growth is characteristic of
most Indian cities, with that of Delhi being
especially dramatic, as the satellite images from
1977 and 1999 clearly show. (source Similar
study has been done by the UNEP, published in
One Planet, Many People Atlas of Our Changing
Environment, UNEP 2005)
Signature Comparisons
Contact Information araj_at_clarku.edu asimonti_at_clar
ku.edu