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1999•Physical GeographyRequires access

DOCUMENTING INDONESIAN RAINFALL IN THE 1997/1998 EL NIÑO EVENT

Dewi Kirono, Nigel Tapper, John L. McBride

Open publisher page 54 citations

Abstract

Monthly rainfall data from 33 stations over 48 years are analyzed to document the effects of the 1997/1998 El Niño event on Indonesian rainfall. During the “El Niño” year from March 1997 to February 1998, virtually the whole country had rainfall below the 10th percentile, with many stations recording their lowest rainfall on record. Examination of the seasonal variation of rainfall shows that the largest impact was during the period from June to November 1997 (the dry season), with a reduced impact during the December 1997 to February 1998 wet season. Comparisons are made with the 1982/1983 event, and lag relationships are investigated to determine the predictability of severe drought. [Key words: Indonesia, El Niño, ENSO, SOI, drought, monsoon.]

About this research paper

What this paper is about

Monthly rainfall data from 33 stations over 48 years are analyzed to document the effects of the 1997/1998 El Niño event on Indonesian rainfall. During the “El Niño” year from March 1997 to February 1998, virtually the whole country had rainfall below the 10th percentile, with many stations recording their lowest rainfall on record. Examination of the seasonal variation of rainfall shows that the largest impact was during the period from June to November 1997 (the dry season), with a reduced impact during the December 1997 to February 1998 wet season. Comparisons are made with the 1982/1983 event, and lag relationships are investigated to determine the predictability of severe drought. [Key words: Indonesia, El Niño, ENSO, SOI, drought, monsoon.]

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Available abstract

Monthly rainfall data from 33 stations over 48 years are analyzed to document the effects of the 1997/1998 El Niño event on Indonesian rainfall. During the “El Niño” year from March 1997 to February 1998, virtually the whole country had rainfall below the 10th percentile, with many stations recording their lowest rainfall on record. Examination of the seasonal variation of rainfall shows that the largest impact was during the period from June to November 1997 (the dry season), with a reduced impact during the December 1997 to February 1998 wet season. Comparisons are made with the 1982/1983 event, and lag relationships are investigated to determine the predictability of severe drought. [Key words: Indonesia, El Niño, ENSO, SOI, drought, monsoon.]

Key concepts: Climatology, El Niño Southern Oscillation, La Niña, Indonesian, Environmental science, Monsoon, Predictability, Wet season

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