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SPATIAL TRENDS AND SPATIAL EXTREMES IN SOUTH KOREAN OZONE  

Yun, Seok-Hoon (Department of Applied Statistics, University of Suwon)
Richard L. Smith (Department of Statistics, University of North Carolina)
Publication Information
Journal of the Korean Statistical Society / v.32, no.4, 2003 , pp. 313-335 More about this Journal
Abstract
Hourly ozone data are available for 73 stations in South Korea from January, 1988 to August, 1998. We are interested in detecting trends in both the mean levels and the extremes of ozone, and in determining how these trends vary over the country. The latter aspect means that we also have to understand the spatial dependence of ozone. In this connection, therefore, we examine in this paper the following features: determining trends in mean ozone levels at individual stations and combination across stations; determining trends in extreme ozone levels at individual stations and combination across stations; spatial modeling of trends in mean and extreme ozone levels.
Keywords
AR processes; extreme value theory; hierarchical models; point processes; spatial statistics; threshold methods;
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