DIFUSIVIDADE TÉRMICA DO SOLO DE CAMPINA GRANDE PARA DOIS PERÍODOS DO ANO
Abstract
Foram coletados dados de temperatura do solo nas profundidades de 02, 05, 20, 30, 50 e 100 cm, durante um ciclo diário na Estação Meteorológica de Campina Grande, PB, em dois períodos distintos entre os anos de 2004-2005. O estudo foi realizado com o objetivo de avaliar o comportamento térmico e determinar a difusividade térmica, a partir da amplitude e da fase do 1º harmônico da Série de Fourier. Para isto foram escolhidas três camadas de solo, uma superficial, de 2 a 5 cm de profundidade, uma intermediaria, de 20 a 30 cm de profundidade, e outra mais profunda, de 50 a 100 cm. Para a camada superficial, os valores da difusividade térmica parecem mais confiáveis. No caso das camadas intermediaria e profunda, os valores de difusividade térmica obtidos pelo método da amplitude são mais coerentes que os obtidos pelo método da fase, que além de mais variáveis, são sistematicamente mais elevados.Downloads
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Copyright (c) 2021 Soetânia Santos Oliveira, Jose Fideles Filho, Simone Vicente Oliveira, Thiago Silva Araújo
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