TITLE:
Spatial Intra-Annual Variability of Precipitation Based on Geostatistics. A Case Study for the Paraiba Do Sul Basin, Southeastern Brazil
AUTHORS:
Walquiria Marins Silva, Silvio Jorge C. Simões
KEYWORDS:
Spatial Rainfall, Semivariogram, Kriging, Hydroclimatologic Analysis
JOURNAL NAME:
International Journal of Geosciences,
Vol.5 No.4,
April
28,
2014
ABSTRACT:
The
emphasis in this research is to evaluate the spatial distribution of the
precipitation using a geostatistics approach. Seasonal time scales records
considering DJF, MAM, JJA e SON periods performed the analysis. Procedures to
evaluate the variogram selection and to produce kriging maps were performed in
a GIS environment . The results showed that kriging method
was very suitable to detect both large changes in the whole area as those local
small and subtle changes. Kriging demonstrated be a powerful statistical
interpolation method that might be very useful in regions with great complexity
in climatology and geomorphology.