Large‐scale atmospheric controls on local precipitation in tropical Mexico

Bruce C. Hewitson, Robert G. Crane

Research output: Contribution to journalArticlepeer-review

79 Scopus citations


Sixty‐five percent of the short term variability in southern Mexican precipitation is accounted for by the large‐scale circulation. Empirical relationships between sea level and 500 mb circulation fields, and the local precipitation in Chiapas, Mexico, are derived using a neural net. Although much of the rainfall is a result of convective processes, the neural net captures the onset of the precipitation season, and the phase of individual precipitation events. The analysis indicates that both of these aspects of the precipitation regime are controlled to a large extent by the atmospheric circulation.

Original languageEnglish (US)
Pages (from-to)1835-1838
Number of pages4
JournalGeophysical Research Letters
Issue number18
StatePublished - Sep 23 1992

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)


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