Drought monitoring in the Agrotechnological Districts of the Semear Digital Center.

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dc.contributorTAMIRES LIMA DA SILVA; LUCIANA ALVIM SANTOS ROMANI, CNPTIA; SILVIO ROBERTO MEDEIROS EVANGELISTA, CNPTIA; MIHAI DATCU, UNIVERSITY POLITEHNICA OF BUCHAREST; SILVIA MARIA FONSECA S MASSRUHA, PR.
dc.creatorSILVA, T. L. da
dc.creatorROMANI, L. A. S.
dc.creatorEVANGELISTA, S. R. M.
dc.creatorDATCU, M.
dc.creatorMASSRUHA, S. M. F. S.
dc.date2025-05-13T16:47:42Z
dc.date2025-05-13T16:47:42Z
dc.date2025-05-13
dc.date2025
dc.date.accessioned2026-07-07T04:18:11Z
dc.descriptionDrought affects the agricultural sector, posing challenges for farm management, particularly among medium- and small-scale producers. This study uses climate data from remote sensing products to evaluate drought trends in the Semear Digital Center’s Agrotechnological Districts (DATs), which are characterized by a high concentration of small- and medium-sized farms in Brazil. Precipitation data from Climate Hazards Group InfraRed Precipitation with Station (CHIRPS) and land surface temperature data from Moderate Resolution Imaging Spectroradiometer (MODIS) were applied to calculate the Standardized Precipitation–Evapotranspiration Index (SPEI) for a 6-month timescale from 2000 to 2024, with analysis divided into 2000–2012 and 2013–2024. Some limitations were noted: MODIS systematically underestimated temperatures, while CHIRPS tended to underestimate precipitation for most of the DATs. Despite discrepancies, these datasets remain valuable for drought monitoring in areas where long-term ground weather station data are lacking for SPEI assessments. Agricultural drought frequency and severity increased in the 2013–2024 period. Exceptional, extreme, severe, and moderate drought events rose by 7.3, 5.4, 2.2 and 1.0 times, respectively. These trends highlight the importance of adopting smart farming technologies to enhance the resilience of the DATs to climate change.
dc.identifierAtmosphere, v. 16, n. 4, 465, 2025.
dc.identifier2073-4433
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1175529
dc.identifierhttps://doi.org/10.3390/atmos16040465
dc.identifier.urihttp://hdl.handle.net/123456789/457087
dc.languageeng
dc.rightsopenAccess
dc.subjectMudanças climáticas
dc.subjectSPEI
dc.subjectMODIS
dc.subjectCHIRPS
dc.subjectAgritempo
dc.subjectSemear Digital
dc.subjectDistritos Agrotecnológicos
dc.subjectAgricultural drought
dc.subjectSeca
dc.subjectSensoriamento Remoto
dc.subjectRemote sensing
dc.subjectClimate change
dc.titleDrought monitoring in the Agrotechnological Districts of the Semear Digital Center.
dc.typeArtigo de periódico

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