Ayugi Brian, Eresanya Emmanuel Olaoluwa, Onyango Augustine Omondi, Ogou Faustin Katchele, Okoro Eucharia Chidinma, Okoye Charles Obinwanne, Anoruo Chukwuma Moses, Dike Victor Nnamdi, Ashiru Olusola Raheemat, Daramola Mojolaoluwa Toluwalase, Mumo Richard, Ongoma Victor
Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044 China.
Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Collaborative Innovation Center On Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing, University of Information Science and Technology, Nanjing, 210044 China.
Pure Appl Geophys. 2022;179(4):1365-1386. doi: 10.1007/s00024-022-02988-z. Epub 2022 Mar 14.
This review study examines the state of meteorological drought over Africa, focusing on historical trends, impacts, mitigation strategies, and future prospects. Relevant meteorological drought-related articles were systematically sourced from credible bibliographic databases covering African subregions in the twentieth and twenty-first centuries (i.e. from 1950 to 2021), using suitable keywords. Past studies show evidence of the occurrence of extreme drought events across the continent. The underlying mechanisms are mostly attributed to complex interactions of dynamical and thermodynamical mechanisms. The resultant impact is evidenced in the decline of agricultural activities and water resources and the environmental degradation across all subregions. Projected changes show recovery from drought events in the west/east African domain, while the south and north regions indicate a tendency for increasing drought characteristics. The apparent intricate link between the continent's development and climate variability, including the reoccurrence of drought events, calls for paradigm shifts in policy direction. Key resources meant for the infrastructural and technological growth of the economy are being diverted to develop coping mechanisms to adapt to climate change effects, which are changing. Efficient service delivery to drought-prone hotspots, strengthening of drought monitoring, forecasting, early warning, and response systems, and improved research on the combined effects of anthropogenic activities and changes in climate systems are valuable to practitioners, researchers, and policymakers regarding drought management in Africa today and in the future.
本综述研究考察了非洲的气象干旱状况，重点关注历史趋势、影响、缓解策略和未来前景。利用合适的关键词，从涵盖20世纪和21世纪非洲次区域（即1950年至2021年）的可信书目数据库中系统地获取了与气象干旱相关的文章。过去的研究表明，整个非洲大陆都发生过极端干旱事件。其潜在机制主要归因于动力和热力机制的复杂相互作用。由此产生的影响表现为所有次区域的农业活动、水资源减少以及环境退化。预计的变化显示，西非/东非地区的干旱事件将有所缓解，而南部和北部地区则呈现出干旱特征加剧的趋势。非洲大陆的发展与气候变率之间明显复杂的联系，包括干旱事件的再次发生，要求政策方向进行范式转变。原本用于经济基础设施和技术发展的关键资源正被转而用于开发应对气候变化影响的应对机制，而气候变化影响正在不断变化。为干旱多发热点地区提供高效服务、加强干旱监测、预报、早期预警和应对系统，以及改进对人为活动和气候系统变化综合影响的研究，对当今和未来非洲干旱管理的从业者、研究人员和政策制定者都具有重要意义。
