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Suspended sand concentration calculating method based on coastal zone imager

A calculation method and imager technology, applied in particle suspension analysis, suspension and porous material analysis, scientific instruments, etc., can solve problems other than the calculation method of suspended sediment concentration, and achieve the effect of reducing labor

Inactive Publication Date: 2011-06-01
SHANGHAI OCEAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In general, domestic and foreign scholars have proposed some methods for the quantitative calculation of suspended sediment, but these methods are not based on the calculation method of suspended sediment concentration of the coastal zone imager

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  • Suspended sand concentration calculating method based on coastal zone imager
  • Suspended sand concentration calculating method based on coastal zone imager
  • Suspended sand concentration calculating method based on coastal zone imager

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Embodiment Construction

[0018] In order to further understand the features of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. However, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the protection scope of the present invention.

[0019] The coastal zone imager is a sensor loaded on a satellite launched by our country. It has a 4-band payload and is used to obtain real-time image data of the sea-land interaction area, and perform dynamic monitoring of pollution, red tide, sea ice and coastal zones with medium resolution. .

[0020] The invention uses a coastal zone imager to obtain remote sensing image data of a water body with high sediment content to calculate the suspended sediment concentration of the water body with high sediment content.

[0021] like figure 1 Shown, is the schematic flow chart of the method of the present invention:

[0022] Step 101: Data ...

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Abstract

The invention discloses a suspended sand concentration calculating method based on a coastal zone imager, which comprises the following steps of: preprocessing data; selecting data of a first waveband and a second waveband of the coastal zone imager; calculating a remote sensing sand parameter: R=[(lambda443)+(lambda565)] / [(lambda565) / (lambda443)], wherein the lambda 443 is a reflectivity of the first waveband of the coastal zone image and the lambda565 is a reflectivity of the second waveband of the coastal zone imager; and calculating the suspended sand concentration of a high-sand-content water body: sus=2*e<0.1>1<4R+4.4>, wherein e is a base number of natural logarithm.

Description

technical field [0001] The invention relates to the technical field of ocean water color remote sensing, in particular to a calculation method for suspended sediment concentration based on a coastal zone imager. Background technique [0002] The spatio-temporal distribution of suspended sediment content is an important parameter for analyzing changes in estuary and coast erosion and silting, estimating the material flux of rivers into the sea, and studying ocean sedimentation rates and marine environments. Dramatic changes in the amount of sediment in rivers into the sea often affect and cause obvious changes in coastlines and tidal flats. Variety. Due to the comprehensive influence of various factors such as runoff, tides, salt and fresh water mixing, and wind and wave action, the temporal and spatial distribution, movement characteristics, and deposition locations of suspended sediment often change, and it is difficult to grasp the change law by general conventional observ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06
Inventor 韩震沈蔚李阳东杨晓明冯永玖
Owner SHANGHAI OCEAN UNIV