Rainfall Trends, Drought Frequency and La Niña in Tuvalu

Date created: 07 March 2022

This study addresses rainfall trends, the frequency of droughts, La Niña influences and the relationship between rainfall and Sea Surface Temperature (SST) in Tuvalu. The findings revealed that;

  • de-trended rainfall time series show declining trends in all four rainfall stations over the period 1953-2012;

  • the frequency of drought ranges from three to fourteen years with a mean of nine years

  • the occurrence of drought appears to follow the La Niña years

  • boplots provide an effective option for defining drought

  • there is empirical support for a moderate to strong correlation between the de-trended values of SST and rainfall in the area of study

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Data and Resources

Rating
Issued 2021-07-06
Modified 2022-02-15
DCAT Type Text
Source
Publisher Name
  • Department of Environment
Contact Name
  • Luke Paeniu, Department of Climate Change, University of the South Pacific (USP)
Contact Email [email protected]