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Effects of urbanization on climate of Nairobi City

Ongoma, Victor and Muthama, J.N. and Ng'ang'a, J.K. (2010) Effects of urbanization on climate of Nairobi City. Journal Meteorology and Related Sciences, 4 . pp. 49-60. ISSN 1995-9834

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    Abstract

    Nairobi, Kenya’s capital city, is one of the fastest growing cities in the world. There is necessity to investigate the effects of urbanization on the climate of the city. This study looked into the long-term urban modification of annual weather conditions by studying the relation between the weather elements and urbanization indicators. The results showed that Nairobi city is growing at a high rate as evidenced by a population growth of about 6.9% annually.The temperature was found to have been modified by urbanization such that there is a warming trend; the stations that were more urban recorded a high rate of temperature increase as compared to the less urban stations revealing the formation of an urban heat island. Rainfall trend was similarly found to be increasing with time; however, the change in humidity was found to be insignificant. It further revealed that some of the long term changes in climate over the city were due to changes in surface and atmospheric characteristics of the city such as surface roughness, smoke and destruction of vegetation cover, as a consequence of urbanization. The environmental implications such as urban surface temperature modification on human comfort are significant. It was suggested that in order to control these trends and to obtain more favourable and healthy climatic conditions, the acreage of green areas must be increased. Incorporation of the findings in the future planning of the city is hence recommended.

    Item Type: Journal Article
    Subjects: G Geography. Anthropology. Recreation > G Geography (General)
    G Geography. Anthropology. Recreation > GB Physical geography
    G Geography. Anthropology. Recreation > GE Environmental Sciences
    Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Geography, Earth Science and Environment
    Depositing User: Victor Ongoma
    Date Deposited: 07 May 2019 10:19
    Last Modified: 07 May 2019 10:19
    URI: http://repository.usp.ac.fj/id/eprint/11536
    UNSPECIFIED

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