A preliminary study of cold surges and precipitation during the northeast monsoon season over Malaysia

Ahmad Ridzuan Mohammed Shariff, Mandeep Singh Jit Singh, Kalaivani Chell, Wayan Suparta, Fredolin Tangang @ Tajudin Mahmud, Ester Salimun, Maszidah Muhammad, Mardina Abdullah, Mohammad Tariqul Islam

Research output: Contribution to journalArticle

Abstract

Heavy rainfall over Malaysia occurs predominantly during the northeast monsoon season. Outbreaks of cold polar air over the South China Sea, known as cold surges, contribute to the onset of northeast monsoon precipitation. This study uses gridded reanalysis data from NCEP/NCAR Reanalysis Project 1 to calculate a cold surge index. This index is then compared with precipitation data for 4 surface stations from the World Monthly Surface Station Climatology (WMSSC) dataset. For Peninsular Malaysia, findings show that the cold surge index has the strongest inverse correlation with precipitation amounts at Kota Bharu and Kuantan stations from December to February (DJF). For the west coast of Sarawak, results for Kuching and Sibu stations show a similar inverse correlation from January to April (JFMA). The temporal difference suggests different cold surge flow types affecting each part of Malaysia. On the other hand, the similar inverse correlation relationship could imply that stronger southward-moving component of the cold surge winds bring heavier precipitation to both parts of Malaysia.

Original languageEnglish
Pages (from-to)185-188
Number of pages4
JournalAdvanced Science Letters
Volume21
Issue number2
DOIs
Publication statusPublished - 2015

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Malaysia
Surge
Precipitation (meteorology)
monsoon
Climatology
Rain
Coastal zones
Air
Meteorology
Rainfall
air
China
Oceans and Seas
climatology
Disease Outbreaks
cold
Imply
Calculate
rainfall
station

Keywords

  • Climate
  • Cold surges
  • Malaysia
  • NCEP/NCAR reanalysis project 1
  • Northeast monsoon
  • Precipitation
  • WMSSC

ASJC Scopus subject areas

  • Engineering(all)
  • Environmental Science(all)
  • Computer Science(all)
  • Energy(all)
  • Mathematics(all)
  • Health(social science)
  • Education

Cite this

A preliminary study of cold surges and precipitation during the northeast monsoon season over Malaysia. / Shariff, Ahmad Ridzuan Mohammed; Jit Singh, Mandeep Singh; Chell, Kalaivani; Suparta, Wayan; Tangang @ Tajudin Mahmud, Fredolin; Salimun, Ester; Muhammad, Maszidah; Abdullah, Mardina; Islam, Mohammad Tariqul.

In: Advanced Science Letters, Vol. 21, No. 2, 2015, p. 185-188.

Research output: Contribution to journalArticle

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