Cited by 73Climate variability and modelsHydrology and Drought AnalysisClimate Change and Environmental Impact

Recent changes in global dryland temperature and precipitation

Daramola, Mojolaoluwa Toluwalase, Xu, Ming·2022·International Journal of Climatology

Abstract

Changes in dryland temperature and precipitation are essential components of dryland climate change. This study applies the use of the monthly reanalysis data product of ERA5, which has a spatial resolution of 0.25°, to investigate the changes in the dryland climate between 1979 and 2018. The result revealed warming and drying of the drylands in recent decades, most notably in the current decade. The general global dryland temperature and precipitation increased and decreased significantly (0.01 significance level) at the rate of 0.032°C·year−1 and 0.074 mm·month−1·year−1, respectively, in the last 40 years. Although precipitation generally decreased over the drylands, summer precipitation increased over southern Africa and Australia as well as northern Africa and south Asia dryland areas. Variation in the warming rate over the dryland zones at different periods was also observed. The semiarid and dry subhumid warmed continually from the first decade (0.02°C·year−1 and 0.017°C·year−1) to the fourth decade (0.077°C·year−1 and 0.065°C·year−1, respectively), while the hyperarid warmed at a slower rate in the last two decades compared to the prior decades. More intense warming was also observed in the areas where precipitation decreased, suggesting the effect of reduced evaporative cooling. These changes have implications on the dryland environment, such as aridity changes, which could affect the sustainable development of the areas through the corresponding impact on the ecosystem.

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Crossref · 10.1002/joc.7301

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Authors
Daramola, M. T., & Xu, M.
Affiliations
Chinese Academy of Sciences (CN)
Corresponding author
Xu, Ming
Venue
International Journal of Climatology
Publisher
Wiley
Published
2021-09
Volume
42
Issue
2
Pages
1267-1282
ISSN
  • 0899-8418 (ISSN-L)
  • 1097-0088
OpenAlex
W3185224037
Cited by
73
References
58
Citations by year
2026: 17 · 2025: 16 · 2024: 17 · 2023: 10 · 2022: 12 · 2021: 1
FWCI
4.10
Type
journal article
Language
en
Open access
closed
Locations
International Journal of Climatology (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Environmental Science › Global and Planetary Change › Hydrology and Drought Analysis
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate Change and Environmental Impact
Keywords
temperature trends, precipitation trends, warming and drying, aridity change, semi-arid region, hyper-arid regions, evaporative cooling, ERA5 reanalysis, Southern Africa, Australia, North Africa, South Asia

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