Spatial-temporal characteristics of precipitation changes in Guangxi over the past 70 years
Abstract
using ERA5-Land precipitation data. The analysis reveals significant spatial variability, with northern and eastern Guangxi experiencing
higher annual mean precipitation, while central and western regions receive less. Temporal analysis shows notable interannual and decadal
fluctuations, with a slight decline in overall precipitation since 2000. Wavelet analysis identifies dominant periodicities at 2–4-year, 8–10-year,
and 16–32-year timescales. The Empirical Orthogonal Function (EOF) analysis reveals three key modes of variability. The findings highlight
the significant role of climate oscillations in shaping precipitation patterns in Guangxi and provide critical insights for water resource management and agricultural planning.
Keywords
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DOI: http://dx.doi.org/10.18686/ag.v8i3.13474
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