ESTIMATIVA POR SENSORIAMENTO REMOTO DAS CONCENTRAÇÕES DE CLOROFILA-A E CARBONO ORGÂNICO TOTAL EM RESERVATÓRIOS DO SEMIÁRIDO BRASILEIRO, A PARTIR DE IMAGENS DO SENSOR OLI/ LANDSAT8.
نویسندگان
چکیده
O objetivo do estudo foi estimar, por meio de sensoriamento remoto (OLI/LANDSATA 8 – LS8), as concentrações clorofila-a (Cl-a) e carbono orgânico total (COT). Entre 2017 2018 foram realizadas seis coletas amostras água nos reservatórios Umari Mendubim, no semiárido nordestino, para determinação dos valores Cl-a COT. Foram calculados os coeficientes correlação entre bandas espectrais das imagens OLI/LS8 COT selecionar a serem utilizadas nas regressões lineares simples múltiplas reflectância variáveis limnológicas. Houve dados campo estimados partir da combinação B4 B5 (R²=0,87) B2 (R²=0,80). obtidos recuperados OLI/LS8, com 0,76 0,71 em 0,78 0,72 Mendubim. Os modelos eficientes na estimativa ambientes estudados, mostrando viabilidade uso monitoramento destas limnológicas brasileiro.
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ژورنال
عنوان ژورنال: Boletim Goiano de Geografia
سال: 2022
ISSN: ['1984-8501', '0101-708X']
DOI: https://doi.org/10.5216/bgg.v42.67672