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Proceedings Paper

Retrieval of total suspended particulate matter in highly turbid Hangzhou Bay waters based on geostationary ocean color imager
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Paper Abstract

Hangzhou Bay waters are often characterized by extremely high total suspended particulate matter (TSM) concentration due to terrestrial inputs, bottom sediment resuspension and human activities. The spatial-temporal variability of TSM directly contributes to the transport of carbon, nutrients, pollutants, and other materials. Therefore, it is essential to maintain and monitor sedimentary environment in coastal waters. Traditional field sampling methods limit observation capability for insufficient spatial-temporal resolution. Thus, it is difficult to synoptically monitor high diurnal dynamics of TSM. However, the in-orbit operation of the world’s first geostationary satellite ocean color sensor, GOCI, thoroughly changes this situation with hourly observations of covered area. Taking advantage of GOCI high spatial-temporal resolution, we generated TSM maps from GOCI Level-1B data after atmospheric correction based on six TSM empirical algorithms. Validation of GOCI-retrieved normalized water-leaving radiances and TSM concentration was presented in comparison with matched-up in-situ measurements. The mean absolute percentage differences of those six TSM regional algorithms were 24.52%, 163.93%, 195.50%, 70.50%, 121.02%, 82.72%, respectively. In addition, the discrepancy reasons were presented, taking more factors such as diversified satellite data, various study area, and different research season into consideration. It is effective and indispensable to monitor and catch the diurnal dynamics of TSM in Hangzhou Bay coastal waters, with hourly GOCI observations data and appropriate inversion algorithm.

Paper Details

Date Published: 13 October 2017
PDF: 7 pages
Proc. SPIE 10422, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2017, 1042217 (13 October 2017); doi: 10.1117/12.2278047
Show Author Affiliations
Jia Liu, Xi’an Institute of Optics and Precision Mechanics (China)
Jiahang Liu, Xi’an Institute of Optics and Precision Mechanics (China)
Xianqiang He, The Second Institute of Oceanography, SOA (China)
Tieqiao Chen, Xi’an Institute of Optics and Precision Mechanics (China)
Feng Zhu, Xi'an Institute of Optics and Precision Mechanics (China)
Yihao Wang, Xi'an Institute of Optics and Precision Mechanics (China)
Zengzhou Hao, The Second Institute of Oceanography, SOA (China)
Peng Chen, The Second Institute of Oceanography, SOA (China)


Published in SPIE Proceedings Vol. 10422:
Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2017
Charles R. Bostater Jr.; Stelios P. Mertikas; Xavier Neyt; Sergey Babichenko, Editor(s)

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