8-12 July 2013
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=13&confId=32"><font color=#ff0000>SAIP2013 PROCEEDINGS AVAILABLE</font></a>

Monitoring land-cover changes using satellite imagery

9 Jul 2013, 11:50
20m
Oral Presentation Track D2 - Space Science Space Science

Speaker

Mr Wayne Goosen (SANSA Space Science)

Abstract content <br> &nbsp; (Max 300 words)

Several regions around the World are currently undergoing rapid, wide-ranging changes in land cover due to human activities and natural events. These changes can have significant effects on regional and even global climate change. In this paper the focus is on urbanization in South Africa. Two major factors drive urbanisation: population expansion and the wider range of employment opportunities in urban areas. We employ a post-classification approach to detect land cover changes on a specific area from a time series of satellite images. Variance in spatial resolution and radiometric resolution between images was taken into account using radiometric normalization and geometric registration. We then used a maximum likelihood classifier to distinguish between the different land use classes. We are able to quantify the proportions of each land use class for every image and monitor the change over time. This information highlights the physical growth rate of a specific urban area caused by urbanization and it will allow environmental experts to diagnose the effects of these changes.

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

Hons

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

no

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

yes

Main supervisor (name and email)<br>and his / her institution

Andrew B. Collier
collierb@gmail.com
SANSA Space Science

Primary author

Mr Wayne Goosen (SANSA Space Science)

Co-authors

Mr Andrew Collier (SANSA Space Science) Mr Serestina Viriri (University of Kwazulu Natal)

Presentation Materials

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