2013 - (Vol. 05, Issue 01)

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Browsing 2013 - (Vol. 05, Issue 01) by Author "Abenayake, CC"

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    Political-Geographic Scales of Environmental Injustice: Understanding the Flood-Affected Neighbourhoods on the Banks of the Kelani River in Colombo
    (Faculty of Architecture University of Moratuwa, 2013-12) Perera, JKHH; Abenayake, CC
    Environmental injustice has become a detrimental reality in urbanizjngdeveloping world. Branding of communities as ‘encroachers’ due to the absence of property rights has caused insecure rights to clean air; safe dunking water and live in a safe environment. This shows that the term property rights' is mis-defined as ;right to life’. The observable small geographic extent of the problem tendsthe decision makers to recognize that as a minor issue at neighborhood pockets but the author’s reading argues such places as icebergs which cover the unseen broader geographic context. This study emphasizes how the negligence of the broader geographic context made many decision makers fail to address the burning issues exists at these vulnerable urban pockets. The research hasbeen built on the empirical evidences of two community groups which reside in frequen flood prone area as well as adjacent to a solid waste disposal site in the banks of Keleni River. This narrates the people’s attempts to obtain their right to life through continuous attempts to cope, survive and adapt to environmental injustice. The revealed complexities of political-geographic boundaries urge to rethink the urban planners' perception of the scale and in that light to offer the duly importance to the issues of environmental injustice of the poor urban settlers.
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    A Study on the trends of rainfall and temperature patterns to identify the influence of climate variation in a coastal cities in Sri Lanka
    (Faculty of Architecture University of Moratuwa, 2013-12) Bandara, PKBDB; Abenayake, CC; Jayasinghe, AB; Jayasinghe, PKS
    Climate change has been universally recognized as a fundamental human development challenge in the 21st century and also it impacts both natural and built environments. Since different parts of the world have predicted to be affected by climate change in varying degrees, many of the studies are focused on climate change in global or region level. However; there is a dearth of climatological studies addressing the temporal trends in rainfall and temperature at city scale. On other hand\ recent rainfall and temperature extremes have adverse impacts on the natural and built environment of most of coastal cities in Sri Lanka. In this context this research attempted to examine trends of rainfall and temperature patterns over the last four decades in seven coastal cities (namely, Rathmalana, Hambantota, Trincomalle, Puttalam, Katunayake, Batticaloa and Galle) in Sri Lanka to understand whether thy support to claim the long-term climate change by identifying temporal trends in the rainfall and temperature during the period of 1971-2011. The findings of the study revealed average overall stations, the indices of temperature- extremes indicate warning of both daily minimum and maximum temperature between 1971 and 2011. For precipitation, most of the indices show significant changes. Relative to the changes in the total amounts, there is a very significant change in the precipitation extreme days. Accordingly, this study emphasized the need of integrating the climatic variations wisely in the urban planning can invest the capital of the country to the development rather than unnecessarily spend it on post disaster rehabilitations