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dc.contributor.authorCORREA, W. C.
dc.contributor.authorSOUSA, A. M. de
dc.contributor.authorSOUZA NETO, J. V. de
dc.contributor.authorSOUSA, A. C. de
dc.contributor.authorSAGRILO, E.
dc.contributor.authorOLIVEIRA JUNIOR, J. O. L. de
dc.contributor.authorOLIVEIRA-JUNIOR, J. F. de
dc.contributor.authorMACHADO, N. A. F.
dc.date.accessioned2026-07-20T17:49:59Z-
dc.date.available2026-07-20T17:49:59Z-
dc.date.created2026-07-20
dc.date.issued2026
dc.identifier.citationAtmospheric Research, v. 342, Article 109185, 2026.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1188450-
dc.descriptionDry spells during the rainy season can negatively impact the agricultural, water, and ecological sectors. Despite these risks, such events have been little studied in Maranhão. Therefore, the objective of this study was to analyze the variability of dry spells in Maranhão during the rainy season (December to May) using daily precipitation data (1994-2023) from 123 meteorological stations. Dry spells were defined as ≥3 consecutive days with pre­cipitation <1 mm, categorized into classes A (3-6 days), B (7-10 days), C (11-14 days), and D (≥15 days), and spatialized using the Inverse Distance Weighting method. Principal component analysis (PCA) was applied to classes A (>frequency) and D (>duration) to identify patterns of variability in their frequencies related to geographic and atmospheric variables, and under which climatic characteristics they occur.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectPrecipitação diária
dc.subjectPeríodos de seca
dc.subjectVariabilidade espaço-temporal
dc.subjectAnálise multivariada
dc.titleSpatiotemporal variability of dry spells during the rainy season in Maranhão state, Brazil.
dc.typeArtigo de periódico
riaa.ainfo.id1188450
riaa.ainfo.lastupdate2026-07-20
dc.identifier.doihttps://doi.org/10.1016/j.atmosres.2026.109185
dc.contributor.institutionWELLINGTON CRUZ CORREA, FEDERAL UNIVERSITY OF MARANHAO; ANDREZA MACIEL DE SOUSA, FEDERAL UNIVERSITY OF MARANHÃO; JOAO VALERIO DE SOUZA NETO, FEDERAL UNIVERSITY OF MARANHÃO; ANDRESSA CARVALHO DE SOUSA, FEDERAL UNIVERSITY OF MARANHÃO; EDVALDO SAGRILO, CPAMN; JOSE OSCAR LUSTOSA DE OLIVEIRA JUNIOR, CPAMN; JOSE FRANCISCO DE OLIVEIRA-JUNIOR, FEDERAL UNIVERSITY OF ALAGOAS; NÍTALO ANDRE FARIAS MACHADO, FEDERAL UNIVERSITY OF MARANHAO.
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