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Revista Geográfica de América Central
versão On-line ISSN 2215-2563versão impressa ISSN 1011-484X
Resumo
MONTEIRO, Francisco; MARIZ FARIA, Raila; SANTIAGO REIS, João e LUNA LUCENA, Rebecca. Spatial analysis of rainfall in Rio Grande Do Norte State, Brazil. Rev. Geog. Amer. Central [online]. 2024, n.72, pp.59-78. ISSN 2215-2563. http://dx.doi.org/10.15359/rgac.72-1.2.
The main goal of this research was to perform a spatial analysis of precipitation in the state of Rio Grande do Norte (RN) through geostatistical techniques, comparing the historical average data with rainy and dry standard years. Three indicators called Moran’s Global Index, Moran Map, and Moran’s Scattering Diagram were used for geostatistical analysis. The results showed that precipitation has a more evident pattern in the Eastern Potiguar mesoregion since both in the year considered rainy and, in a year considered dry, most of this mesoregion presented a (HH) pattern, that is, the municipalities form a cluster that represents spatial autocorrelation associated with higher values of precipitation in the state. The regions of Agreste and Central Potiguar were the driest.
Palavras-chave : spatial autocorrelation; Brazilian semiarid; rainfall; Moran index; water resources.