HighlightsTSM retrieval errors via atmospherically corrected images ranged between 10% and 163%.The surface reflectance product from OLI provided reliable data.Retrieving the surface reflectance in NIR region is still a challenge.

    AbstractThe atmospheric effects that influence on the signal registered by remote sensors might be minimized in order to provide reliable spectral information. In aquatic systems, the application of atmospheric correction aims to minimize such effects and avoid the under or overestimation of remote sensing reflectance (Rrs). Accurately Rrs provides better information about the state of aquatic system, it means, establishing the concentration of aquatic compounds more precisely. The aim of this study is to evaluate the outputs from several atmospheric correction methods (Dark Object Subtraction – DOS; Quick Atmospheric Correction – QUAC; Fast Line-of-sight Atmospheric Analysis of Hypercubes – FLAASH; Atmospheric Correction for OLI ‘lite’ – ACOLITE, and Provisional Landsat-8 Surface Reflectance Algorithm – L8SR) in order to investigate the suitability of Rrs for estimating total suspended matter concentrations (TSM) in the Barra Bonita Hydroelectrical Reservoir. To establish TSM concentrations via atmospherically corrected Operational Land Imager (OLI) scene, the TSM retrieval model was calibrated and validated with in situ data. Thereby, the achieved results from TSM retrieval model application demonstrated that L8SR is able to provide the most suitable Rrs values for green and red spectral bands, and consequently, the lowest TSM retrieval errors (Mean Absolute Percentage Error about 10% and 12%, respectively). Retrieved Rrs from near infrared band is still a challenge for all the tested algorithms.


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    Titel :

    Atmospheric correction issues for retrieving total suspended matter concentrations in inland waters using OLI/Landsat-8 image


    Beteiligte:

    Erschienen in:

    Advances in Space Research ; 59 , 9 ; 2335-2348


    Erscheinungsdatum :

    2017-02-08


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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