TITLE:
Impact of Meteorological Drought on Streamflows in the Lobo River Catchment at Nibéhibé, Côte d’Ivoire
AUTHORS:
Bérenger Koffi, Zilé Alex Kouadio, Kouakou Hervé Kouassi, Affoué Berthe Yao, Martin Sanchez, Kouakou Lazare Kouassi
KEYWORDS:
Rainfall, Normalized Index, Meteorological Drought, Hydrological Drought, Lobo River
JOURNAL NAME:
Journal of Water Resource and Protection,
Vol.12 No.6,
June
28,
2020
ABSTRACT: The management of water resources in watersheds has become increasingly difficult in recent years due to the frequency and intensity of drought sequences. The Lobo River catchment, like most tropical regions, has experienced alternating wet and dry periods. These drought periods have a significant impact on the availability of water resources in the basin. The objective of this study is to analyse the impact of meteorological drought on flows in the Lobo River catchment. Therefore, using the Normalized Precipitation and Evapotranspiration Index (SPEI) and the Drought Flow Index (SDI), the characteristics of droughts were studied. The results of this study show that meteorological droughts were more frequent than hydrological droughts in the Lobo River watershed. However, the hydrological drought was longer and more intense than the meteorological drought. The greater relationship between meteorological and hydrological drought was observed at the Daloa and Vavoua station (0.43