Drought monitoring for Masvingo province in Zimbabwe: A remote sensing perspective

Type Journal Article - Herald Journal of Geography and Regional Planning
Title Drought monitoring for Masvingo province in Zimbabwe: A remote sensing perspective
Author(s)
Volume 2
Issue 1
Publication (Day/Month/Year) 2013
Page numbers 056-060
Abstract
The research was aimed at analysing and monitoring the seasonal occurrences of drought in Masvingo
province of Zimbabwe so as to determine the areas that are prone to drought episodes. The Vegetation
Condition Index which shows how close the Normalized Difference Vegetation Index of the current time is
to the minimum Normalized Difference Vegetation Index calculated from the long-term record for that
given time was used to monitor drought occurrence over the Province. Time series of dekadal SPOT
Normalized Difference Vegetation Index images of Masvingo province were also used to compute
seasonal Vegetation Condition Index maps from 2005-2010. The resulting Vegetation Condition Index
maps were then classified as follows: Severe, Moderate and Mild. Results showed that droughts occur
in Masvingo province at least at some place every rainy season but on average the droughts are mild
rather than severe or moderate. The occurrence and the spatial distribution of drought in Masvingo
was also found to be random but some parts of Chiredzi, Mwenezi and Bikita districts are more
frequently beset by severe droughts than any other parts of the province.

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