Relationships between airborne particulate matter and meteorological variables using non-decimated wavelet transform

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12 Citations (Scopus)

Abstract

Malaysia has experienced several haze periods since early 1980s in which suspended particulate matter was the major components. The temporal variations observed in suspended particulate matter concentrations are the result of interactions of various meteorological variables and pollutants emissions in different time scales. In order to study the relationships between particulate matter, temperature and wind speed, non-decimated wavelet transform was applied to the time series. The time series registered significant relationships between meteorological variables and pm10 for low frequency components while for the high frequency components, the relationships were not significant. The correlations between pm10 and temperature were found positive. The correlations between pm10 and wind speed registered positive and negative correlations. 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)308-312
Number of pages5
JournalEuropean Journal of Scientific Research
Volume27
Issue number2
Publication statusPublished - 2009

Fingerprint

Particulate Matter
Wavelet Analysis
Wavelet transforms
Wavelet Transform
wavelet
particulate matter
Time series
particulates
transform
Wind Speed
suspended particulate matter
wind velocity
wind speed
time series
time series analysis
Malaysia
haze
Pollutants
Temperature
Low Frequency

Keywords

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

ASJC Scopus subject areas

  • General

Cite this

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title = "Relationships between airborne particulate matter and meteorological variables using non-decimated wavelet transform",
abstract = "Malaysia has experienced several haze periods since early 1980s in which suspended particulate matter was the major components. The temporal variations observed in suspended particulate matter concentrations are the result of interactions of various meteorological variables and pollutants emissions in different time scales. In order to study the relationships between particulate matter, temperature and wind speed, non-decimated wavelet transform was applied to the time series. The time series registered significant relationships between meteorological variables and pm10 for low frequency components while for the high frequency components, the relationships were not significant. The correlations between pm10 and temperature were found positive. The correlations between pm10 and wind speed registered positive and negative correlations. The findings also support the suggestion that during the dry season, one of the major sources of particulates was from outside the country.",
keywords = "Non-decimated wavelet transform, Temperature, Wavelet, Wind speed",
author = "Azami Zaharim and Mokhtar Shaharuddin and {Mohd Nor}, {Mohd. Jailani} and {A. Karim}, Othman and Kamaruzzaman Sopian",
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journal = "European Journal of Scientific Research",
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TY - JOUR

T1 - Relationships between airborne particulate matter and meteorological variables using non-decimated wavelet transform

AU - Zaharim, Azami

AU - Shaharuddin, Mokhtar

AU - Mohd Nor, Mohd. Jailani

AU - A. Karim, Othman

AU - Sopian, Kamaruzzaman

PY - 2009

Y1 - 2009

N2 - Malaysia has experienced several haze periods since early 1980s in which suspended particulate matter was the major components. The temporal variations observed in suspended particulate matter concentrations are the result of interactions of various meteorological variables and pollutants emissions in different time scales. In order to study the relationships between particulate matter, temperature and wind speed, non-decimated wavelet transform was applied to the time series. The time series registered significant relationships between meteorological variables and pm10 for low frequency components while for the high frequency components, the relationships were not significant. The correlations between pm10 and temperature were found positive. The correlations between pm10 and wind speed registered positive and negative correlations. 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 was the major components. The temporal variations observed in suspended particulate matter concentrations are the result of interactions of various meteorological variables and pollutants emissions in different time scales. In order to study the relationships between particulate matter, temperature and wind speed, non-decimated wavelet transform was applied to the time series. The time series registered significant relationships between meteorological variables and pm10 for low frequency components while for the high frequency components, the relationships were not significant. The correlations between pm10 and temperature were found positive. The correlations between pm10 and wind speed registered positive and negative correlations. 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 - Temperature

KW - Wavelet

KW - Wind speed

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