EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

A step by step procedure for multivariate modeling

Claudia Cappello, Sandra De Iaco, Monica Palma, and Sabrina Maggio
Claudia Cappello et al.
  • University of Salento - Department: Scienze dell'Economia - Lecce, Italy

In environmental sciences, it is very common to observe spatio-temporal multiple data concerning several correlated variables which are measured in time over a monitored spatial domain. In multivariate Geostatistics, the analysis of these correlated variables requires the estimation and modelling of the spatio-temporal multivariate covariance structure.
In the literature, the linear coregionalization model (LCM) has been widely used, in order to describe the spatio-temporal dependence which characterizes two or more variables. In particular, the LCM model requires the identification of the basic independent components underlying the analyzed phenomenon, and this represents a tough task. In order to overcome the aforementioned problem, this contribution provides a complete procedure where all the necessary steps to be followed for properly detect the basic space-time components for the phenomenon under study, together with some computational advances which support the selection of an ST-LCM.
The implemented procedure and the related algorithms are applied on a space-time air quality dataset.
Note that the proposed procedure can help practitioners to reproduce all the modeling stages and to replicate the analysis for different multivariate spatio-temporal data.

How to cite: Cappello, C., De Iaco, S., Palma, M., and Maggio, S.: A step by step procedure for multivariate modeling, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-16387,, 2021.

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