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Satellite remote sensing method used for monitoring turbidity of high-turbidity seawater

A satellite remote sensing and turbidity technology, applied in the field of satellite remote sensing, can solve the problem of inaccurate atmospheric correction and achieve the effect of improving the utilization rate

Active Publication Date: 2015-10-28
南京信大环境科技有限公司
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Problems solved by technology

The latest representative work comes from Dogliotti et al. (2015). They established a single-band semi-empirical algorithm for extracting turbidity information using field-measured water-leaving radiation with a wavelength of 645 nm and the inherent optical data of the water body, which can successfully achieve medium And the inversion of turbidity in highly turbid water, but when it is applied to satellite remote sensing data, it is still subject to the problem of inaccurate atmospheric correction

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  • Satellite remote sensing method used for monitoring turbidity of high-turbidity seawater
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  • Satellite remote sensing method used for monitoring turbidity of high-turbidity seawater

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[0022] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0023] like figure 1 As shown, a satellite remote sensing method for monitoring the turbidity of highly turbid seawater includes the following steps:

[0024] Step 1. Obtain real-time water turbidity in the research area through observation means;

[0025] Step 2. Select satellite data synchronized with water turbidity to construct a satellite-ground matching data set;

[0026] Synchronization here means that under the premise of consistent latitude and longitude, the difference between the measurement time of water body turbidity and the acquisition time of satellite data is within m minutes, and m depends on the actual situation;

[0027] Step 3: Carry out cloud coverage screening and ident...

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Abstract

The invention discloses a satellite remote sensing method used for monitoring the turbidity of high-turbidity seawater. According to the satellite remote sensing method, the correlation of Rayleigh atmosphere calibrated satellite remote sensing reflectance with water body turbidity is constructed based on satellite remote sensing data and real-time water body turbidity data, aerosol accurate atmosphere calibration is not needed, a problem that offshore water satellite remote sensing data missing is caused by atmosphere calibration failure is solved, and utilization ratio of remote sensing data is increased. The satellite remote sensing method is rapid and simple, is convenient to realize, and is more suitable for practical application.

Description

technical field [0001] The invention relates to a satellite remote sensing method for monitoring the turbidity of highly turbid seawater, belonging to the technical field of marine remote sensing. Background technique [0002] Turbidity is an important parameter of the water quality environment. It can be used to characterize the content of suspended particulate matter in the water body. It is an important indicator for monitoring the marine water quality environment. It is of great significance for understanding the hydrodynamic environment and seawater material transport. and important parameters of marine biogeochemical processes. Therefore, water turbidity monitoring has very important practical significance and scientific research value. [0003] Conventional monitoring often uses turbidity detectors to obtain turbidity information through direct contact with seawater. This is also the most commonly used method in current water quality environmental business monitoring...

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Application Information

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IPC IPC(8): G01N33/18
Inventor 丘仲锋郑鹭飞孙德勇王胜强梁文希
Owner 南京信大环境科技有限公司