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Applicability of combined drought index in drought analysis over North Eastern Kenya

Shilenje, Zablon W. and Ongoma, Victor and Njagi, Mercy (2019) Applicability of combined drought index in drought analysis over North Eastern Kenya. Natural Hazards, 2019 . pp. 1-11. ISSN 0921-030X

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    Abstract

    Droughts are hindrances to economic and social developments in many parts of the world, especially in developing nations like Kenya. In North Eastern Kenya (NEK), drought is very prevalent. The communities in the region are mainly dependent on animal farming, and drought occurrence leads to great socioeconomic setback. Drought indices used in most studies consider rainfall as the only parameter for assessing drought occurrences. This study analyzes drought in NEK using the Standardized Precipitation Index (SPI) and the Combined Drought Index (CDI) using rainfall and temperature values and Normalized Difference Vegetation Index values for the period 1980–2010. The results of the two indices show significant correlation. However, CDI is preferred in the analysis of the drought compared to the SPI as it gives drought in more detail, showing extreme, severe, moderate and mild. The study recommends the use of the two methods independently since they give similar results and further recommends trial in other parts of the country affected by drought.

    Item Type: Journal Article
    Subjects: 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: 30 Aug 2019 10:01
    Last Modified: 30 Aug 2019 10:01
    URI: http://repository.usp.ac.fj/id/eprint/11742
    UNSPECIFIED

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