Modelling emission trends from non-constant time series of PM10 concentrations in Christchurch, New Zealand (2010)
AuthorsAppelhans T, Sturman A, Zawar-Reza Pshow all
This paper presents an attempt to model the trend of emissions through analysis of a time series of PM10 concentrations in Christchurch, New Zealand. Emissions are not constant over time, but show high seasonality. Fluctuations are removed by creating a time series in which concentrations do not show dependency on ambient air temperature. Remaining meteorological influences are removed through multiple linear regression. Finally, a moving average filter is applied to reveal the low-frequency trend in the residuals of the meteorologically adjusted time series. The modelled trend shows a peak in emissions in 2001-2002 with a steady decrease thereafter.
CitationAppelhans T, Sturman A, Zawar-Reza P (2010). Modelling emission trends from non-constant time series of PM10 concentrations in Christchurch, New Zealand. International Journal of Environment and Pollution. 43(4). 354-363.
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KeywordsScience & Technology; Life Sciences & Biomedicine; Environmental Sciences; Environmental Sciences & Ecology; ENVIRONMENTAL SCIENCES; particulate matter; PM10; air pollution meteorology; multiple linear regression; New Zealand; air quality; time series analysis; emissions; home heating; OZONE AIR-QUALITY; WINTER SMOG; VARIABLES; SCALES
ANZSRC Fields of Research04 - Earth Sciences::0401 - Atmospheric Sciences
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