Bruce Kelly N. Silva

Dr. Bruce Kelly N. Silva

Instituto Nacional do Semiárido, Campina Grande, Paraíba, Brazil

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 October 2023 in Climate
Verified
Journal Article
Open access
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BSBruce Kelly N. Silva
Bruce Kelly N. Silva
RCRafaela Lisboa Costa
Rafaela Lisboa Costa
Fabricio Daniel dos Santos SilvaFabricio Daniel dos Santos Silva
Fabricio Daniel dos Santos Silva
MVMário Henrique Guilherme dos Santos Vanderlei
Mário Henrique Guilherme dos Santos Vanderlei
Helder José Farias da SilvaHelder José Farias da Silva
Helder José Farias da Silva
Cláudio Moisés Santos e SilvaCláudio Moisés Santos e Silva
Cláudio Moisés Santos e Silva
Agriculture is the world’s main economic activity. According to the Intergovernmental Panel on Climate Change, this activity is expected to be impacted by drought. In the Northeast region of Brazil (NEB), most agricultural activity is carried out by small rural communities. Local socio-economic data were analyzed using multivariate statistical techniques in this study to determine agricultural sensitivity to drought events (SeA) and agricultural vulnerability to drought extremes (VaED). The climate data used to develop the risk factor (Rdrought) were the drought indicator with the Standard Precipitation Index (SPI) and the average number of drought disasters from 1991 to 2012. Conditional probability theory was applied to determine agricultural vulnerability to drought extremes (VaED). Characterization of the risk of agricultural drought using the proposed methodology showed that the rainy season presents high risk values in the central region, covering areas of the states of Ceará, Piauí, Pernambuco and Rio Grande do Norte, as well as all areas of the semi-arid region. The risk ranged from high to medium. The results also indicated that part of the south of Bahia and the west of Pernambuco have areas of extreme agro-climatic sensitivity. Consequently, these states have an extreme degree of climate vulnerability during the region’s rainy season.