Abstract
This paper describes a statistical analysis of wet sulfate deposition data sampled by the Canadian Air and Precipitation Monitoring Network (CAPMoN) since 1988 till 1997. The goal of the investigation is to detect presence of prevailing significant changes in the probability distribution of annual samples collected by the network at each site. The considerations are based on a first order autoregression model with second order polynomial trend and methods used for analysis of variance and multiple comparison. Unlike studies suggesting existence of long term trends in the data, methods applied here indicate absence of any systematic changes in the observed annual concentration patterns at most of the sites.
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References
P.J. Brockwell and R.A. Davis, Time Series: Theory and Methods (Springer-Verlag, New York, 1987).
E.L. Crow and K.E. Shimizu, The Lognormal Distributions: Theory and Applications (Marcel Dekker, New York, 1988).
N. Draper and H. Smith, Applied Regression Analysis, 2nd ed. (Wiley, New York, 1981).
W. Feller, An Introduction to Probability Theory and its Applications, Vol. I, 3rd ed. (Wiley, New York, 1970).
D.J. Finney, On the distribution of a variate whose logarithm is normally distributed, Suppl. J. R. Statist. Soc. 7 (1941) 155-161.
I. Karatzas and S.E. Shreve, Brownian Motion and Stochastic Calculus (Springer-Verlag, New York, 1988).
M. Kendall and A. Stuart, The Advanced Theory of Statistics, Vol. 1-3, 4th ed. (MacMillan, New York, 1977).
J.A. Lynch, J.W. Grimm and V.C. Bowersox, Trends in precipitation chemistry in the United States: A national perspective, 1980-1992, Atmospheric Environment 29 (1995) 1231-1246.
D. McKay, J.R. Brook, R.M. Hoff and D.M. Whelpdale, 1997 Canadian acid rain assessment, Environment Canada, Canadian Ministry of Environment (1997).
G.W. Ohlert, Regional trends in sulfate wet deposition, Journal of the American Statistical Association 88 (1993) 390-399.
C. Ro, D. Vet and A. Holloway, National Atmospheric Chemistry Database, Atmospheric Environment Service, 4905 Dufferin Street, Downsview, Ontario, Canada M3H 2G4 (1997).
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Mohapl, J. Assessment of Wet Sulfate Concentration Changes at CAPMoN Sites, Canada. Environmental Modeling & Assessment 8, 85–99 (2003). https://doi.org/10.1023/A:1023917805772
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DOI: https://doi.org/10.1023/A:1023917805772