Browsing by Author "Woyessa, Yali E."

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Analysis of Droughts in the Central Region of South Africa and Their Association with SST Anomalies

Edossa, Desalegn C.; Woyessa, Yali E.; Welderufael, Worku A. (Hindawi Publishing Corporation: International Journal of Atmospheric Sciences, 2014)

The objective of this study was to characterise meteorological droughts in the Central Region of South Africa using Standardised Precipitation Evapotranspiration Index (SPEI) and to examine if there is a relationship ...
Spatiotemporal analysis of droughts using self-calibrating Palmer’s Drought Severity Index in the central region of South Africa

Edossa, Desalegn C.; Woyessa, Yali E.; Welderufael, Worku A. (Springer International Publishing AG: Theoretical and Applied Climatology, 2016)

The loss of life and property from drought events has forced society to focus on the development of reliable early warning systems which may enable farmers and other stakeholders to correctly and timely adapt to the expected ...
Techniques for Calibration and Validation of SWAT Model in Data Scarce Arid and Semi-Arid Catchments in South Africa

Mengistu, Achamyeleh G.; Van Rensburg, Leon D.; Woyessa, Yali E. (Journal of Hydrology, 2019)

Study region: This study was conducted in Soutloop River Catchment, Northern Cape, South Africa. Study focus: Although hydrologic models play a critical role in the management of natural resources in arid areas, their ...

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