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Spatial variability of SPI and RDI st drought indices applied to intense episodes of drought occurred in Rio de Janeiro State, Brazil
Author(s) -
Sobral Bruno Serafini,
OliveiraJúnior José Francisco,
Gois Givanildo,
PereiraJúnior Edson Rodrigues
Publication year - 2018
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.5542
Subject(s) - climatology , environmental science , precipitation , spatial distribution , spatial variability , data series , geography , meteorology , mathematics , statistics , geology , remote sensing , econometrics
This article analyses the spatial distribution of the SPI and the RDI st when applied to intense episodes of drought in the state of Rio de Janeiro, Brazil. Data of 99 rainfall stations and 17 temperature stations collected during 31 consecutive years (1979–2009) were used to generate both drought indices, in the annual scale. The results for indices SPI and RDI st presented similarities in terms of spatial variation, with SPI presenting good drought spatial characterization with fewer data requirements.