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DOI10.1016/j.dynatmoce.2019.05.001
Dominant east-west pattern of diurnal temperature range observed across Zambia
Libanda B.; Nkolola N.B.; Chilekana N.; Bwalya K.
发表日期2019
ISSN03770265
起始页码153
结束页码162
卷号86
英文摘要Diurnal temperature range (DTR)is an important index for climate because of its statistical relationships to greenhouse gases, urban heat, cloud cover, land use change, and aerosol haze layers. This study examines DTR trends across Zambia for the period 1930–2016 using the latest version of high-resolution monthly data (CRU TS v4.01)from the Climatic Research Unit. Non-parametric trend analyses were extensively employed at different spatial and temporal scales to quantify DTR changes. Taken together, results show a dominant east-west pattern with higher DTR values being observed in the western half of the country. Although there are noticeable differences in the magnitude from one month to the other, this east-west pattern is persistent throughout all the months. It is also found that mean annual DTR is negatively correlated with mean annual cloud cover with a strong and statistically significant coefficient of -0.8 but its correlation with precipitation weakens to -0.5 at the α 0.05. Results from the Mann-Kendall trend test shows marginal increments in DTR during all the seasons and they are all statistically significant at the α 0.05. The observed increments can be attributed to a general decrease in cloud cover over Zambia. © 2019 Elsevier B.V.
英文关键词Climate change; Cloud cover; Diurnal temperature range; Rainfall; Zambia
语种英语
scopus关键词Greenhouse gases; Land use; Precipitation (meteorology); Rain; Climatic research; Cloud cover; Diurnal temperature ranges; Mann-Kendall trends; Non-parametric trends; Spatial and temporal scale; Statistical relationship; Zambia; Climate change; air temperature; climate change; cloud cover; diurnal variation; rainfall; Zambia
来源期刊Dynamics of Atmospheres and Oceans
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/178373
作者单位School of Geosciences, The University of Edinburgh, Edinburgh, EH9 3FF, United Kingdom; School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom; Ministry of Energy and Water Development, P.O. Box 53930, Lusaka, Zambia
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Libanda B.,Nkolola N.B.,Chilekana N.,et al. Dominant east-west pattern of diurnal temperature range observed across Zambia[J],2019,86.
APA Libanda B.,Nkolola N.B.,Chilekana N.,&Bwalya K..(2019).Dominant east-west pattern of diurnal temperature range observed across Zambia.Dynamics of Atmospheres and Oceans,86.
MLA Libanda B.,et al."Dominant east-west pattern of diurnal temperature range observed across Zambia".Dynamics of Atmospheres and Oceans 86(2019).
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