Modulation of station rainfall over the western Pacific by the Madden-Julian oscillation

Adrian J. Matthews; Hoi Yee Yvonne Li

doi:10.1029/2005GL023595

Modulation of station rainfall over the western Pacific by the Madden-Julian oscillation

Adrian J. Matthews
, Hoi Yee Yvonne Li

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

26 Downloads (Pure)

Abstract

Rainfall data from 140 stations in the PACRAIN network in the tropical western Pacific are analysed to assess the signal due to the Madden-Julian Oscillation (MJO). During northern winter, the station rainfall difference between the wet and dry phases of the MJO is up to 6 mm day-1, compared to the climatological mean value of 12 mm day-1. The anomalies have a strong spatial coherence, with over 80% of the individual point station anomalies having the same sign as the large-scale rainfall anomaly, as determined by the mainly satellite-derived CMAP rainfall product.

Original language	English
Pages (from-to)	L14827
Journal	Geophysical Research Letters
Volume	32
Issue number	14
DOIs	https://doi.org/10.1029/2005GL023595
Publication status	Published - 2005

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Cite this

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title = "Modulation of station rainfall over the western Pacific by the Madden-Julian oscillation",

abstract = "Rainfall data from 140 stations in the PACRAIN network in the tropical western Pacific are analysed to assess the signal due to the Madden-Julian Oscillation (MJO). During northern winter, the station rainfall difference between the wet and dry phases of the MJO is up to 6 mm day-1, compared to the climatological mean value of 12 mm day-1. The anomalies have a strong spatial coherence, with over 80\% of the individual point station anomalies having the same sign as the large-scale rainfall anomaly, as determined by the mainly satellite-derived CMAP rainfall product.",

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AB - Rainfall data from 140 stations in the PACRAIN network in the tropical western Pacific are analysed to assess the signal due to the Madden-Julian Oscillation (MJO). During northern winter, the station rainfall difference between the wet and dry phases of the MJO is up to 6 mm day-1, compared to the climatological mean value of 12 mm day-1. The anomalies have a strong spatial coherence, with over 80% of the individual point station anomalies having the same sign as the large-scale rainfall anomaly, as determined by the mainly satellite-derived CMAP rainfall product.

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