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Regional Vicarious Calibration of the SWIR-Based Atmospheric Correction Approach for MODIS-Aqua Measurements of Highly Turbid Inland Water

Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
University of Chinese Academy of Sciences, Beijing 100049, China
State key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydro Power Research, Beijing 100038, China
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(14), 1670;
Received: 4 June 2019 / Revised: 4 July 2019 / Accepted: 12 July 2019 / Published: 13 July 2019
(This article belongs to the Special Issue Satellite Monitoring of Water Quality and Water Environment)
PDF [4407 KB, uploaded 13 July 2019]


Water color remote sensing requires accurate atmospheric correction but this remains a significant challenge in highly turbid waters. In this respect, the shortwave infrared (SWIR) band-based atmospheric correction approach has proven advantageous when applied to the moderate resolution imaging spectroradiometer (MODIS) onboard the Aqua satellite. However, even so, uncertainties affect its accuracy. We performed a regional vicarious calibration of the MODIS-Aqua SWIR (1240, 2130)-based atmospheric correction using in situ water surface reflectance data measured during different seasons in Lake Taihu, a highly turbid lake. We then verified the accuracy of the (1240, 2130)-based atmospheric correction approach using these results; good results were obtained for the remote sensing reflectance retrievals at the 555, 645, and 859 nm, with average relative errors of 15%, 14%, and 22%, respectively, and no significant bias. Comparisons with the (1240, 2130)-based iterative approach and (1640, 2130)-based approach showed that the vicarious calibrated (1240, 2130)-based approach has the best accuracy and robustness. Thus, it is applicable to the highly turbid Lake Taihu. It may also be applicable to other highly turbid inland waters with similar optical and aerosol optical properties above water, but such applications will require further validation. View Full-Text
Keywords: vicarious calibration; atmospheric correction; MODIS-Aqua; Lake Taihu; SWIR vicarious calibration; atmospheric correction; MODIS-Aqua; Lake Taihu; SWIR

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Li, J.; Yin, Z.; Lu, Z.; Ye, Y.; Zhang, F.; Shen, Q.; Zhang, B. Regional Vicarious Calibration of the SWIR-Based Atmospheric Correction Approach for MODIS-Aqua Measurements of Highly Turbid Inland Water. Remote Sens. 2019, 11, 1670.

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