干旱区生态环境知识资源中心(Arid): Spatial Variability of Rainfall Trends in Sri Lanka from 1989 to 2019 as an Indication of Climate Change

Arid

DOI	10.3390/ijgi10020084
	Spatial Variability of Rainfall Trends in Sri Lanka from 1989 to 2019 as an Indication of Climate Change
	Alahacoon, Niranga; Edirisinghe, Mahesh
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, Pelawatte 10120, Colombo, Sri Lanka.
来源期刊	ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
EISSN	2220-9964
出版年	2021
卷号	10 期号:2
英文摘要	Analysis of long-term rainfall trends provides a wealth of information on effective crop planning and water resource management, and a better understanding of climate variability over time. This study reveals the spatial variability of rainfall trends in Sri Lanka from 1989 to 2019 as an indication of climate change. The exclusivity of the study is the use of rainfall data that provide spatial variability instead of the traditional location-based approach. Henceforth, daily rainfall data available at Climate Hazards Group InfraRed Precipitation corrected with stations (CHIRPS) data were used for this study. The geographic information system (GIS) is used to perform spatial data analysis on both vector and raster data. Sen's slope estimator and the Mann-Kendall (M-K) test are used to investigate the trends in annual and seasonal rainfall throughout all districts and climatic zones of Sri Lanka. The most important thing reflected in this study is that there has been a significant increase in annual rainfall from 1989 to 2019 in all climatic zones (wet, dry, intermediate, and Semi-arid) of Sri Lanka. The maximum increase is recorded in the wet zone and the minimum increase is in the semi-arid zone. There could be an increased risk of floods in the southern and western provinces in the future, whereas areas in the eastern and southeastern districts may face severe droughts during the northeastern monsoon. It is advisable to introduce effective drought and flood management and preparedness measures to reduce the respective hazard risk levels.
英文关键词	CHIRPS data climate change climate hazards climate zone natural hazards Mann– Kendall test rainfall rainfall trend Sen’ s slope estimator Sri Lanka
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:000622578700001
WOS类目	Computer Science, Information Systems ; Geography, Physical ; Remote Sensing
WOS研究方向	Computer Science ; Physical Geography ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350620
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, Pelawatte 10120, Colombo, Sri Lanka
推荐引用方式 GB/T 7714	Alahacoon, Niranga,Edirisinghe, Mahesh. Spatial Variability of Rainfall Trends in Sri Lanka from 1989 to 2019 as an Indication of Climate Change[J],2021,10(2).
APA	Alahacoon, Niranga,&Edirisinghe, Mahesh.(2021).Spatial Variability of Rainfall Trends in Sri Lanka from 1989 to 2019 as an Indication of Climate Change.ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION,10(2).
MLA	Alahacoon, Niranga,et al."Spatial Variability of Rainfall Trends in Sri Lanka from 1989 to 2019 as an Indication of Climate Change".ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION 10.2(2021).