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Sensors 2016, 16(12), 1997; doi:10.3390/s16121997

Atmospheric Correction of Satellite GF-1/WFV Imagery and Quantitative Estimation of Suspended Particulate Matter in the Yangtze Estuary

State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
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Author to whom correspondence should be addressed.
Academic Editor: Assefa M. Melesse
Received: 29 September 2016 / Revised: 10 November 2016 / Accepted: 11 November 2016 / Published: 25 November 2016
(This article belongs to the Special Issue Sensors and Sensing in Water Quality Assessment and Monitoring)
View Full-Text   |   Download PDF [8308 KB, uploaded 25 November 2016]   |  

Abstract

The Multispectral Wide Field of View (WFV) camera on the Chinese GF-1 satellite, launched in 2013, has advantages of high spatial resolution (16 m), short revisit period (4 days) and wide scene swath (800 km) compared to the Landsat-8/OLI, which make it an ideal means of monitoring spatial-temporal changes of Suspended Particulate Matter (SPM) in large estuaries like the Yangtze Estuary. However, a lack of proper atmospheric correction methods has limited its application in water quality assessment. We propose an atmospheric correction method based on a look up table coupled by the atmosphere radiative transfer model (6S) and the water semi-empirical radiative transfer (SERT) model for inversion of water-leaving reflectance from GF-1 top-of-atmosphere radiance, and then retrieving SPM concentration from water-leaving radiance reflectance of the Yangtze Estuary and its adjacent sea. Results are validated by the Landsat-8/OLI imagery together with autonomous fixed station data, and influences of human activities (e.g., waterway construction and shipping) on SPM distribution are analyzed. View Full-Text
Keywords: atmospheric correction; GF-1/WFV; Landsat-8/OLI; Suspended Particulate Matter atmospheric correction; GF-1/WFV; Landsat-8/OLI; Suspended Particulate Matter
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Shang, P.; Shen, F. Atmospheric Correction of Satellite GF-1/WFV Imagery and Quantitative Estimation of Suspended Particulate Matter in the Yangtze Estuary. Sensors 2016, 16, 1997.

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