Padrões espaciais e temporais da umidade do solo no Nordeste do Brasil
Data
2023-01-06
Autores
Donato, Keylla [UNIFESP]
Orientadores
Zeri, Luis Marcelo de Mattos
Tipo
Trabalho de conclusão de curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Resumo
A água é um recurso essencial para a vida. Atividades como a agricultura dependem fortemente da recarga da água no solo durante a estação chuvosa, especialmente em áreas sem acesso a irrigação. Após o plantio, bons valores de umidade do solo garantem uma boa safra. O Nordeste do Brasil, região caracterizada por diversas fragilidades ambientais, sociais e climáticas, sofre impactos causados por secas frequentes e consequentemente pela baixa umidade do solo. Um exemplo é a grande vulnerabilidade na agricultura familiar devido aos baixos valores de chuva e umidade do solo. A seca, em linhas gerais, é causada pela desproporção entre temperaturas muito altas e escassez de chuva que acabam tornando a região nordestina bastante sensível aos efeitos das condições climáticas. Diante disso, o objetivo deste estudo é investigar os padrões espaciais e temporais da umidade do solo no Nordeste do Brasil utilizando-se de geoprocessamento e saídas do modelo JULES (Joint UK Land Environment Simulator). Além disso, buscou-se caracterizar as secas na região utilizando variáveis como temperatura do ar e precipitação.
Soil moisture is an essential resource for life. Activities, such as agriculture, rely heavily on soil water recharge during the rainy season, especially in areas without access to irrigation. After planting, good soil moisture indicators guarantee a good harvest. The Northeast of Brazil, a region characterized by several environmental, social and climatic weaknesses, suffers impacts caused by frequent droughts and consequently low soil moisture. An example is the great vulnerability in family farming due to low indicators of rainfall and soil moisture. Drought, in general, is caused by the disproportion between very high temperatures and lack of rain, that end up making the northeast region very sensitive to the effects of weather conditions. Therefore, the objective of this work is to investigate the spatial and temporal patterns of soil moisture in the Northeast region of Brazil using geoprocessing and JULES (Joint UK Land Environment Simulator) model outputs. In addition, it was intended to characterize the droughts in the region using variables such as air temperature and precipitation.
Soil moisture is an essential resource for life. Activities, such as agriculture, rely heavily on soil water recharge during the rainy season, especially in areas without access to irrigation. After planting, good soil moisture indicators guarantee a good harvest. The Northeast of Brazil, a region characterized by several environmental, social and climatic weaknesses, suffers impacts caused by frequent droughts and consequently low soil moisture. An example is the great vulnerability in family farming due to low indicators of rainfall and soil moisture. Drought, in general, is caused by the disproportion between very high temperatures and lack of rain, that end up making the northeast region very sensitive to the effects of weather conditions. Therefore, the objective of this work is to investigate the spatial and temporal patterns of soil moisture in the Northeast region of Brazil using geoprocessing and JULES (Joint UK Land Environment Simulator) model outputs. In addition, it was intended to characterize the droughts in the region using variables such as air temperature and precipitation.