Estatística espacial utilizando o software R aplicado em dados de precipitação pluviométrica do estado do Ceará

Abstract

The spatial data analysis, applied to the context of rainfall has been showing increasing use by researchers in the field of meteorology as a tool for mapping and rain behavior studies. This research presents a literature review on spatial analysis of data aggregated by area. The overall goal was to demonstrate the features of R in spatial statistics applied to georeferenced data of rainfall in the state of Ceará. The specific objectives were to describe the spatial statistics and geostatistics; present software R for descriptive analysis of georeferenced data; apply the presented content in the R software, and build thematic maps of predicted values by simple kriging process using the software R. The data used for the study were provided by the Fundação Cearense de Meteorologia e Recursos Hídricos. The results showed that the R statistical tools proved capable of manipulating geographic database, building thematic maps with excellent quality and provide spatial analyzes that are usable as support for decision making. Therefore, we conclude that the R software applied to spatial analysis by areas is an alternative software that performs geostatistical analyzes, in addition to other features of non-spatial statistical analyzes.