Application of wavelet transform on airborne suspended particulate matter and meteorological temporal variations

Mokhtar Shaharuddin, Azami Zaharim, Mohd. Jailani Mohd Nor, Othman A. Karim, Kamaruzzaman Sopian

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Malaysia has experienced several haze periods since early 1980s in which suspended particulate matter (SPM) was the major components. The temporal variations observed are the result of interactions of various meteorological variables and pollutants emissions in different time scale. In order to study the relationship between particulate matter, temperature, rainfall and wind speed, non-decimated wavelet transform is applied to the time series. The low frequency components of the meteorological time series showed significant relationship with PM10 while the high frequency spectrums showed no significant relationship with PM10. The findings also support the suggestion that during the dry season, one of the major sources of particulates was from outside the country.

Original languageEnglish
Pages (from-to)89-98
Number of pages10
JournalWSEAS Transactions on Environment and Development
Volume4
Issue number2
Publication statusPublished - Feb 2008

Fingerprint

Particulate Matter
suspended particulate matter
Wavelet transforms
wavelet
time series
Time series
temporal variation
transform
haze
pollutant
Rain
Malaysia
dry season
particulate matter
wind velocity
timescale
rainfall
interaction
temperature
Temperature

Keywords

  • Non-decimated wavelet transform
  • PM
  • Rainfall
  • Temperature
  • Wavelet
  • Wind speed

ASJC Scopus subject areas

  • Environmental Science(all)
  • Geography, Planning and Development
  • Energy(all)

Cite this

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T1 - Application of wavelet transform on airborne suspended particulate matter and meteorological temporal variations

AU - Shaharuddin, Mokhtar

AU - Zaharim, Azami

AU - Mohd Nor, Mohd. Jailani

AU - A. Karim, Othman

AU - Sopian, Kamaruzzaman

PY - 2008/2

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N2 - Malaysia has experienced several haze periods since early 1980s in which suspended particulate matter (SPM) was the major components. The temporal variations observed are the result of interactions of various meteorological variables and pollutants emissions in different time scale. In order to study the relationship between particulate matter, temperature, rainfall and wind speed, non-decimated wavelet transform is applied to the time series. The low frequency components of the meteorological time series showed significant relationship with PM10 while the high frequency spectrums showed no significant relationship with PM10. The findings also support the suggestion that during the dry season, one of the major sources of particulates was from outside the country.

AB - Malaysia has experienced several haze periods since early 1980s in which suspended particulate matter (SPM) was the major components. The temporal variations observed are the result of interactions of various meteorological variables and pollutants emissions in different time scale. In order to study the relationship between particulate matter, temperature, rainfall and wind speed, non-decimated wavelet transform is applied to the time series. The low frequency components of the meteorological time series showed significant relationship with PM10 while the high frequency spectrums showed no significant relationship with PM10. The findings also support the suggestion that during the dry season, one of the major sources of particulates was from outside the country.

KW - Non-decimated wavelet transform

KW - PM

KW - Rainfall

KW - Temperature

KW - Wavelet

KW - Wind speed

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