干旱区生态环境知识资源中心(Arid): Rainfall Variability and Trends over the African Continent Using TAMSAT Data (1983-2020): Towards Climate Change Resilience and Adaptation

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DOI	10.3390/rs14010096
	Rainfall Variability and Trends over the African Continent Using TAMSAT Data (1983-2020): Towards Climate Change Resilience and Adaptation
	Alahacoon, Niranga; Edirisinghe, Mahesh; Simwanda, Matamyo; Perera, E. N. C.; Nyirenda, Vincent R.; Ranagalage, Manjula
通讯作者	Alahacoon, N (corresponding author)，Univ Colombo, Dept Phys, Colombo 00300, Sri Lanka. ; Alahacoon, N (corresponding author)，Int Water Management Inst IWMI, 127 Sunil Mawatha, Batteramulla 10120, Colombo, Sri Lanka.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:1
英文摘要	This study reveals rainfall variability and trends in the African continent using TAMSAT data from 1983 to 2020. In the study, a Mann-Kendall (MK) test and Sen's slope estimator were used to analyze rainfall trends and their magnitude, respectively, under monthly, seasonal, and annual timeframes as an indication of climate change using different natural and geographical contexts (i.e., sub-regions, climate zones, major river basins, and countries). The study finds that the highest annual rainfall trends were recorded in Rwanda (11.97 mm/year), the Gulf of Guinea (river basin 8.71 mm/year), the tropical rainforest climate zone (8.21 mm/year), and the Central African region (6.84 mm/year), while Mozambique (-0.437 mm/year), the subtropical northern desert (0.80 mm/year), the west coast river basin of South Africa (-0.360 mm/year), and the Northern Africa region (1.07 mm/year) show the lowest annual rainfall trends. There is a statistically significant increase in the rainfall in the countries of Africa's northern and central regions, while there is no statistically significant change in the countries of the southern and eastern regions. In terms of climate zones, in the tropical northern desert climates, tropical northern peninsulas, and tropical grasslands, there is a significant increase in rainfall over the entire timeframe of the month, season, and year. This implies that increased rainfall will have a positive effect on the food security of the countries in those climatic zones. Since a large percentage of Africa's agriculture is based only on rainfall (i.e., rain-fed agriculture), increasing trends in rainfall can assist climate resilience and adaptation, while declining rainfall trends can badly affect it. This information can be crucial for decision-makers concerned with effective crop planning and water resource management. The rainfall variability and trend analysis of this study provide important information to decision-makers that need to effectively mitigate drought and flood risk.
英文关键词	rainfall variability rainfall trend TAMSAT data climate change climate hazard Africa
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000742007200001
WOS关键词	PRECIPITATION TRENDS ; GREATER HORN ; TEMPERATURE ; VALIDATION
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376811
作者单位	[Alahacoon, Niranga; Edirisinghe, Mahesh] Univ Colombo, Dept Phys, Colombo 00300, Sri Lanka; [Alahacoon, Niranga] Int Water Management Inst IWMI, 127 Sunil Mawatha, Batteramulla 10120, Colombo, Sri Lanka; [Simwanda, Matamyo] Copperbelt Univ, Sch Nat Resources, Dept Plant & Environm Sci, POB 21692, Kitwe 10101, Zambia; [Perera, E. N. C.] SANASA Campus, Dept Reg Sci & Planning, Kegalle 71000, Sri Lanka; [Nyirenda, Vincent R.] Copperbelt Univ, Sch Nat Resources, Dept Zool & Aquat Sci, POB 21692, Kitwe 10101, Zambia; [Ranagalage, Manjula] Rajarata Univ Sri Lanka, Fac Social Sci & Humanities, Dept Environm Management, Mihintale 50300, Sri Lanka
推荐引用方式 GB/T 7714	Alahacoon, Niranga,Edirisinghe, Mahesh,Simwanda, Matamyo,et al. Rainfall Variability and Trends over the African Continent Using TAMSAT Data (1983-2020): Towards Climate Change Resilience and Adaptation[J],2022,14(1).
APA	Alahacoon, Niranga,Edirisinghe, Mahesh,Simwanda, Matamyo,Perera, E. N. C.,Nyirenda, Vincent R.,&Ranagalage, Manjula.(2022).Rainfall Variability and Trends over the African Continent Using TAMSAT Data (1983-2020): Towards Climate Change Resilience and Adaptation.REMOTE SENSING,14(1).
MLA	Alahacoon, Niranga,et al."Rainfall Variability and Trends over the African Continent Using TAMSAT Data (1983-2020): Towards Climate Change Resilience and Adaptation".REMOTE SENSING 14.1(2022).