Please use this identifier to cite or link to this item: http://repositorio.ufc.br/handle/riufc/72305
Type: Artigo de Periódico
Title: Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, Brazil
Authors: Gonçalves, Suellen Teixeira Nobre
Vasconcelos Júnior, Francisco das Chagas
Silveira, Cleiton da Silva
Cid, Daniel Antônio Camelo
Martins, Eduardo Sávio Passos Rodrigues
Costa, José Micael Ferreira da
Keywords: Drought indices;Reservoir;Water monitoring;Seca - Indices;Reservatórios;Água - Monitoramento
Issue Date: 2023
Publisher: Water
Citation: GONÇALVES, Suellen Teixeira Nobre; VASCONCELOS JÚNIOR, Francisco das Chagas; SILVEIRA, Cleiton da Silva; CID, Daniel Antônio Camelo; MARTINS, Eduardo Sávio Passos Rodrigues; COSTA, José Micael Ferreira da. Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará? Semi-Arid Basins, Brazil. Water, Switzerland, v.15, n.7, p. 1259-1280, 2023. Disponível em: https://doi.org/10.3390/w15071259. Acesso em: 16 maio 2023.
Abstract: The purpose of this work is to evaluate the applicability of five drought indices (Surface Water Supply Index—SWSI, Reclamation Drought Index—RDI, Streamflow Drought Index—SDI, Standardized Precipitation Index—SPI, and Evaporative Demand Drought Index—EDDI) as tools for monitoring, in identifying the duration, intensity, and frequency of hydrological droughts in the basins of the Banabuiú, Castanhão, and Orós reservoirs, located in the state of Ceará, Brazil. The analysis focused on determining the performance of the indexes for capturing the droughts characteristics from 2002 to 2020. Thus, the comparison of the values of the indexes with the Target Levels of the reservoir’s operation were used, as well as the analysis of six decision criteria: robustness, tractability, transparency, sophistication, extensibility, and dimensionality, to compare the behavior of drought indices. The results of the evaluation criteria showed that the SPI was superior to the other indices, being able to significantly represent the drought episodes, capturing a greater number of events. Thus, SPI received the highest total weighted score (118), followed by SWSI (97), EDDI (95), SDI (95), and RDI (88). In this context, it was found that the SPI and SWSI are the most suitable indices to monitor drought in the region and that the use of longer time scales can be recommended to manage hydrological droughts, in order to improve planning and management of water resources.
URI: http://www.repositorio.ufc.br/handle/riufc/72305
ISSN: 1996-2023
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