Spatial patterns of seasonal scale trends in extreme hourly precipitation in South Africa

Shouraseni S Roy, Mathieu Rouault

Research output: Contribution to journalArticle

30 Scopus citations


Hourly precipitation data from 1998 to 2007 spread across 102 stations in South Africa were analyzed for trends in extreme hourly precipitation events. The analyses were conducted at the seasonal scale for summer and winter for nine different variables. The results of our analysis showed predominantly positive trends during summer, with the strongest trends concentrated in the coastal areas in the southeast. The spatial variations in the trends were reversed during the winter season, with negative trends observed in the coastal areas and positive trends occurring in the interior. The summer patterns also overlap with areas experiencing overall increasing trends in annual extreme precipitation as well as a stronger diurnal cycle identified in recently published literature.

Original languageEnglish (US)
Pages (from-to)151-157
Number of pages7
JournalApplied Geography
StatePublished - May 2013



  • Diurnal
  • Extreme
  • Precipitation
  • South Africa

ASJC Scopus subject areas

  • Forestry
  • Tourism, Leisure and Hospitality Management
  • Environmental Science(all)
  • Geography, Planning and Development

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