ABSTRACT:
Australia is renowned
for its highly variable rainfall patterns, which make it a continent marked by
both droughts and flooding rains. With global warming driving atmospheric
warming and altering weather systems, this variability is projected to intensify.
Despite this, the specific trends and extent of rainfall changes across the
country remain uncertain. Within this context, in this study, the temporal
variability of rainfall in Australia was examined at annual, seasonal, and
monthly scales using rainfall data spanning 1920 to 2020. Specifically,
non-parametric tests were employed to assess the magnitude and significance of
rainfall trends across 505 rainfall series within the Australian region.
Results showed a widespread increase in rainfall in summer and spring
throughout the study area. By contrast, autumn and winter showed a marked
decrease in rainfall, with the greatest evidence along the Queensland coast and
in southern Western Australia. If these trends are confirmed in the coming
years, these deficits could limit water resources, affecting agricultural areas,
the conservation of natural areas, and national parks. In addition, these
changes in rainfall could increase the risk of droughts and wildfires, which
could also have socio-economic impacts.
Keywords:
Rainfall; Trend;
Non-parametric tests; Australia
Cite This Article
SCIEPublish Style
Romio A, Gaudio R, Frustaci F, Caloiero T. Analysis of Rainfall
Trend in Australia. Hydroecology and Engineering2025, 2, 10008. https://doi.org/10.70322/hee.2025.10008
AMA Style
Romio A, Gaudio R, Frustaci F, Caloiero T. Analysis of Rainfall
Trend in Australia. Hydroecology and Engineering. 2025; 2(2):10008. https://doi.org/10.70322/hee.2025.10008