Study on long-term characteristics of suspended sediments in Minjiang Estuary based on MODIS data

Xiaohui Xu; Jian Chen; Delu Pan; Zhihua Mao; Xiaoyan Chen

doi:10.1117/12.897869

13 October 2011 Study on long-term characteristics of suspended sediments in Minjiang Estuary based on MODIS data

Xiaohui Xu, Jian Chen, Delu Pan, Zhihua Mao, Xiaoyan Chen

Proceedings Volume 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011; 81751B (2011) https://doi.org/10.1117/12.897869
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

Concentration of suspended sediment directly affects the optical properties such as transparency and water color, and aquatic environment as well. The paper selects the Minjiang Estuary, southeast coast of China as study area, and has established inversion mode of suspended sediment by coupling field data with water-leaving radiation from MODIS data in Minjiang Estuary. Monthly-averaged concentrations and seasonal changes of suspended sediment from 2002 to 2009 were calculated and analyzed by the mode. The main results are as follows: (1) Normalized water-leaving radiance ratio(nLw₆₆₇/nLw₄₈₈) from MODIS data has high relativity with the field observed turbidity by regression equation of Y = 0.618X2 -5.720X + 18.94, in which Y is turbidity, X is nLW₆₆₇/nLW₄₈₈ and R² is 0.716. (2)Suspended sediment in the Minjiang Estuary has obviously spatial and temporal distribution characteristics, that higher concentration of suspended sediment is in coastal water and decreases from shore to sea, and highest concentration happens in winter.

Citation Download Citation

Xiaohui Xu, Jian Chen, Delu Pan, Zhihua Mao, and Xiaoyan Chen "Study on long-term characteristics of suspended sediments in Minjiang Estuary based on MODIS data", Proc. SPIE 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011, 81751B (13 October 2011); https://doi.org/10.1117/12.897869

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KEYWORDS

MODIS

Bismuth

Remote sensing

Data modeling

Earth observing sensors

Landsat

Relativity

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