Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, Brazil
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 th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/7/1259 |
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| author | Suellen Teixeira Nobre Gonçalves Francisco das Chagas Vasconcelos Júnior Cleiton da Silva Silveira Daniel Antônio Camelo Cid Eduardo Sávio Passos Rodrigues Martins José Micael Ferreira da Costa |
| author_facet | Suellen Teixeira Nobre Gonçalves Francisco das Chagas Vasconcelos Júnior Cleiton da Silva Silveira Daniel Antônio Camelo Cid Eduardo Sávio Passos Rodrigues Martins José Micael Ferreira da Costa |
| author_sort | Suellen Teixeira Nobre Gonçalves |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-11T05:21:39Z |
| format | Article |
| id | doaj.art-3489c221fbca41339c29b8630b794092 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T05:21:39Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-3489c221fbca41339c29b8630b7940922023-11-17T17:48:52ZengMDPI AGWater2073-44412023-03-01157125910.3390/w15071259Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, BrazilSuellen Teixeira Nobre Gonçalves0Francisco das Chagas Vasconcelos Júnior1Cleiton da Silva Silveira2Daniel Antônio Camelo Cid3Eduardo Sávio Passos Rodrigues Martins4José Micael Ferreira da Costa5Civil Engineering Department, Campus do Pici, Federal University of Ceará (UFC), Fortaleza 60400-900, CE, BrazilCeará Institute for Meteorology and Water Resources (FUNCEME), Fortaleza 60115-221, CE, BrazilCivil Engineering Department, Campus do Pici, Federal University of Ceará (UFC), Fortaleza 60400-900, CE, BrazilCivil Engineering Department, Campus do Pici, Federal University of Ceará (UFC), Fortaleza 60400-900, CE, BrazilCeará Institute for Meteorology and Water Resources (FUNCEME), Fortaleza 60115-221, CE, BrazilCivil Engineering Department, Campus do Pici, Federal University of Ceará (UFC), Fortaleza 60400-900, CE, BrazilThe 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.https://www.mdpi.com/2073-4441/15/7/1259drought indicesreservoirmonitoring |
| spellingShingle | Suellen Teixeira Nobre Gonçalves Francisco das Chagas Vasconcelos Júnior Cleiton da Silva Silveira Daniel Antônio Camelo Cid Eduardo Sávio Passos Rodrigues Martins José Micael Ferreira da Costa Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, Brazil Water drought indices reservoir monitoring |
| title | Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, Brazil |
| title_full | Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, Brazil |
| title_fullStr | Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, Brazil |
| title_full_unstemmed | Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, Brazil |
| title_short | Comparative Analysis of Drought Indices in Hydrological Monitoring in Ceará’s Semi-Arid Basins, Brazil |
| title_sort | comparative analysis of drought indices in hydrological monitoring in ceara s semi arid basins brazil |
| topic | drought indices reservoir monitoring |
| url | https://www.mdpi.com/2073-4441/15/7/1259 |
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