The dynamics of spatio-temporal droughts in Northeast Brazil

Hydrology and earth system sciences 2026 Open access

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Authors: João Dehon de Araújo Pontes Filho, Francisco Assis de Souza Filho, Ticiana Marinho de Carvalho Studart, Ályson Brayner Sousa Estácio, Eduardo Sávio Passos Rodrigues Martins
DOI: 10.5194/hess-30-2473-2026
Cited by: 0
References: 39

Abstract

Abstract. This study presents a new framework for simplifying the spatio-temporal dynamics of droughts. The framework balances the complexity of drought analysis with the need for clear, actionable information. Using growth curves, growth rates, and acceleration of drought characteristics, the study provides a novel method to monitor drought severity, affected areas, and progression paths. By examining patterns and relationships between these characteristics, the framework identifies critical regions for targeted drought monitoring. The findings highlight that droughts originating in certain areas of Northeast Brazil pose greater risks, requiring closer attention. This approach offers decision-makers a more effective tool to predict and mitigate drought impacts, improving drought management strategies.

Fields of Study & Subjects

Geography and Environmental Studies Environmental and biological studies Rural Development and Agriculture

Publication details

Journal / source
Hydrology and earth system sciences
Publisher
Copernicus GmbH
Volume
30
Issue
8
Pages
2473–2491
Publication date
29 April 2026
Language
EN