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Spatio-temporal characteristics of Heat stress over Nigeria using evaluated ERA5-HEAT reanalysis data

文献类型:期刊论文

作者Morakinyo, Tobi Eniolu1; Ishola, Kazeem Abiodun2,3; Eresanya, Emmanuel Olaoluwa2,4; Daramola, Mojolaoluwa Toluwalase5; Balogun, Ifeoluwa Adebowale6
刊名WEATHER AND CLIMATE EXTREMES
出版日期2024-09-01
卷号45页码:16
关键词Heat stress Thermal comfort ERA5-HEAT Nigeria Africa UTCI
ISSN号2212-0947
DOI10.1016/j.wace.2024.100704
产权排序5
英文摘要Nigeria's growing population faces an increasing heat burden with potential health risks. The Universal Thermal Comfort Index (UTCI) links outdoor conditions and human well-being but lacks comprehensive insitu data in developing regions like Nigeria. ERA5-HEAT reanalysis offers a solution with gridded UTCI and MRT data, but validation is crucial. Thus, this study evaluates the ERA5-HEAT UTCI against data from nine Nigerian weather stations and analysed the spatio-temporal patterns of heat stress trends. Results showed that ERA5-HEAT demonstrated reasonable statistical performance and captured the temporal characteristics and patterns of UTCI across Nigeria's climatic zones. Seasonal variations show heat stress levels from "slightly cold" to "moderate" at 0600 LST and "moderate" to "very strong" at 1500 LST. Geographical consistency exists within each season over the decades, with a critical "very strong" heat stress period during March-May. Additionally, there has been an increasing spatial expansion of areas experiencing higher heat stress levels across the country. Latitudinally, stable patterns exist across decades at 0600 LST for each season. Seasons show distinct UTCI values, and at 1500 LST, more variability and category transitions occur along latitudes. Furthermore, the results indicate significant positive trends and occasional non-significant negative trends over the 40-year period. Notably, during 0600 LST, the Guinea and Sahel regions exhibit relatively higher positive trends than the Sudan region in all seasons, whereas at 1500 LST, high positive trends are prominent in DJF and MAM seasons, indicating increased heat stress during peak seasons. These positive deviations in UTCI are associated with adverse effects on human health, including increased mortality rates.
WOS关键词SUB-SAHARAN AFRICA ; THERMAL COMFORT ; CLIMATE ; TEMPERATURE ; HEALTH ; MORTALITY ; DYNAMICS ; ISLAND ; UTCI
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001345337800001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/210826]  
专题中国科学院地理科学与资源研究所
通讯作者Morakinyo, Tobi Eniolu
作者单位1.Univ Coll Dublin, Sch Geog, Belfield, Ireland
2.Maynooth Univ, Dept Geog, Irish Climate Anal & Res Units ICARUS, Kildare, Ireland
3.Maynooth Univ, Natl Ctr Geocomputat, Kildare, Ireland
4.Org African Acad Doctors OAAD, Nairobi POB, Langata 1483300100, Kenya
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China
6.Fed Univ Technol Akure, Dept Meteorol & Climate Sci, Akure, Nigeria
推荐引用方式
GB/T 7714
Morakinyo, Tobi Eniolu,Ishola, Kazeem Abiodun,Eresanya, Emmanuel Olaoluwa,et al. Spatio-temporal characteristics of Heat stress over Nigeria using evaluated ERA5-HEAT reanalysis data[J]. WEATHER AND CLIMATE EXTREMES,2024,45:16.
APA Morakinyo, Tobi Eniolu,Ishola, Kazeem Abiodun,Eresanya, Emmanuel Olaoluwa,Daramola, Mojolaoluwa Toluwalase,&Balogun, Ifeoluwa Adebowale.(2024).Spatio-temporal characteristics of Heat stress over Nigeria using evaluated ERA5-HEAT reanalysis data.WEATHER AND CLIMATE EXTREMES,45,16.
MLA Morakinyo, Tobi Eniolu,et al."Spatio-temporal characteristics of Heat stress over Nigeria using evaluated ERA5-HEAT reanalysis data".WEATHER AND CLIMATE EXTREMES 45(2024):16.

入库方式: OAI收割

来源:地理科学与资源研究所

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