Quasi-simultaneous measurements of suspended sediments concentration (SSC) of very turbid waters at the Yellow River Estuary with the multi-spectral HJ-1 Imageries and in-situ sampling

Qianguo Xing; Mingjing Lou; Liqiao Tian; Dingfeng Yu; Federica Braga; Luigi Tosi; Lingling Wu

doi:10.1117/12.2068930

10 December 2014 Quasi-simultaneous measurements of suspended sediments concentration (SSC) of very turbid waters at the Yellow River Estuary with the multi-spectral HJ-1 Imageries and in-situ sampling

Qianguo Xing, Mingjing Lou, Liqiao Tian, Dingfeng Yu, Federica Braga, Luigi Tosi, Lingling Wu

Author Affiliations +

Proceedings Volume 9261, Ocean Remote Sensing and Monitoring from Space; 92610S (2014) https://doi.org/10.1117/12.2068930
Event: SPIE Asia-Pacific Remote Sensing, 2014, Beijing, China

Abstract

Evolution of river delta is highly related to the deposition and re-suspension of sediments. At the interacting zone of fresh river discharge and seawater, suspended sediments concentration (SSC) can vary sharply from a few mg/L to thousands of mg/L; thus, mapping the distribution of SSC will provide the first information about sediments transportation. The high spatial resolution (30 m) and high revisit frequency (2 day) of CCD imager on board the Chinese environment-monitoring satellite constellation: HJ-1A and HJ-1B, enable an effective observation of the fine dynamics of suspended sediments. In this work, three intensive cruises in the flooding season and dry season of Yellow River, were carried out to explore the SSC retrieval algorithms on the basis of HJ-1 CCD imageries. Quasi-simultaneous in-situ SSC data were collected with the pass of HJ-1 over the Yellow River Estuary and its vicinity waters, and a local empirical retrieval algorithm of SSC was established against the TOA (top of atmosphere) reflectance of HJ-1 CCD bands with the correction of Rayleigh scattering. This algorithm can be applied to very turbid waters with thousands of mg/L of SSC.

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Qianguo Xing, Mingjing Lou, Liqiao Tian, Dingfeng Yu, Federica Braga, Luigi Tosi, and Lingling Wu "Quasi-simultaneous measurements of suspended sediments concentration (SSC) of very turbid waters at the Yellow River Estuary with the multi-spectral HJ-1 Imageries and in-situ sampling", Proc. SPIE 9261, Ocean Remote Sensing and Monitoring from Space, 92610S (10 December 2014); https://doi.org/10.1117/12.2068930

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KEYWORDS

Charge-coupled devices

Satellites

Reflectivity

Sensors

Water

Rayleigh scattering

Earth observing sensors

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