The University of Liverpool
Department of Mathematical Sciences
Division of Statistics and Probability
SEMINAR
A unifying statistical framework for modelling environmental
spatio-temporal data.
Professor Luigi Ippoliti
Universita degli Studi G. d'Annunzio
Wednesday, 3rd May 2006, 2pm
The Whittaker Room (211)
Abstract:
As requested by the framework EU Directive on air quality assessment and
management (96/62/EC) and related "daughter" directives, air quality
standards for specific pollutants are designed to protect public health and
environment. Modelling is one of the main activities to evaluate air
quality and to prepare future control programs. Of course, this is not an
easy task since a variety of pollutants may undergo chemical reactions
between themselves and with other species. Nevertheless, in this talk we
attempt to discuss a framework to construct a parsimonious multivariate
model which is able to capture the dynamical interactions among pollutants
and meteorological variables. Specifically, assuming that latent or
background effects underlying the fluctuation of observations can be
estimated, a dynamic structural equation model is developed in a
state-space form. It will be shown that it allows complicated structures to
be modelled and, imposing zero restrictions on its parameter matrices,
encompasses a wide range of static or dynamic linear models already
presented in the literature of spatial, temporal and spatio- temporal
processes.
Following the talk, tea and biscuits will be available in Room 304
ALL WELCOME
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Ingrid Harper
University of Liverpool
Department of Mathematical Sciences
Division of Statistics and Probability
Mathematical Sciences Building
Peach Street
Liverpool L69 7ZL
Tel: 0151 794 4751
Fax: 0151 794 4754
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