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ILWIS User Guide, 1993, International Institute of Aerospace Survey and Earth Sciences, Enschede, The Netherlands.

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Article

Determination of the Lukanga Swamps Flood Boundary using Landsat Imagery, Rainfall and Water Level Data

1Department of Geomatic Engineering, University of Zambia, Lusaka, Zambia

2Department of Civil and Environmental Engineering, University of Zambia, Lusaka, Zambia

3Department of Geography and Environmental Studies, University of Zambia, Lusaka, Zambia


Journal of Geosciences and Geomatics. 2019, Vol. 7 No. 5, 237-244
DOI: 10.12691/jgg-7-5-3
Copyright © 2019 Science and Education Publishing

Cite this paper:
Alick R Mwanza, Edwin Nyirenda, Wilma Nchito. Determination of the Lukanga Swamps Flood Boundary using Landsat Imagery, Rainfall and Water Level Data. Journal of Geosciences and Geomatics. 2019; 7(5):237-244. doi: 10.12691/jgg-7-5-3.

Correspondence to: Alick  R Mwanza, Department of Geomatic Engineering, University of Zambia, Lusaka, Zambia. Email: armwanza@unza.zm

Abstract

The Lukanga Swamp is a major wetland situated in the Central Province of Zambia. It is Zambia’s fifth largest wetland whose flood boundary fluctuates with rainfall. Despite one of their many uses being that of flood control, they are no exceptions to this natural phenomenon - flooding. Hence, this study aimed at determining the most probable flood boundary of Lukanga swamps using Landsat images and rainfall data. Seasonal rainfall amounts received over the study area for the period 1972 – 2002, as well as the water level data of the swamp was used to determine wettest years as a means of selecting Landsat imagery which depicted flooding. Rainfall was determined by interpolating rainfall from adjacent meteorological stations as there is no such station in the study area. The selected Landsat imagery was used for delineation of the swamp’s likely maximum flood extent using Remote Sensing and GIS software. The most likely maximum flood extent was found to be 11,891 km2 at peak flooding.

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