Chlorophyll a concentration inversion method and system

A technology of chlorophyll and concentration, which is applied in the field of information processing, can solve problems such as the small number of bands, reduce the inversion accuracy of chlorophyll a concentration, and limit the monitoring range, and achieve high-precision results

Pending Publication Date: 2020-12-25
AEROSPACE INFORMATION RES INST CAS
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Problems solved by technology

[0003] However, the problems existing in the existing remote sensing indirect measurement are that the high-spatial-resolution images often have fewer bands, wider bands, and lack of bands for inverting chlorophyll a; rate is not enough
The monitorable range is limited and the accuracy of chlorophyll a concentration retrieval is reduced

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  • Chlorophyll a concentration inversion method and system
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  • Chlorophyll a concentration inversion method and system

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Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0052] The terms "first" and "second" in the specification and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus comprising a series of steps or units is not defined by listed steps or u...

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Abstract

The invention discloses a chlorophyll a concentration inversion method and system, and the method comprises the steps: obtaining the data of a high-resolution No.6 full-color multispectral camera anda wide-width camera which transit at the same time, carrying out the preprocessing, and obtaining a remote sensing reflectivity image; performing equivalent resampling on the actually measured water body spectrum to obtain a spectrum range the same as that of the remote sensing reflectivity image to obtain an equivalent actually measured water body spectrum, and establishing a chlorophyll a concentration inversion initial model with the actually measured chlorophyll a concentration; optimizing the chlorophyll a concentration inversion initial model based on the remote sensing reflectivity image to obtain a chlorophyll a concentration inversion model; and inputting the remote sensing reflectivity image into a chlorophyll a concentration inversion model to obtain the chlorophyll a concentration. Compared with other high-resolution images, the fused Gaofen-6 data can monitor the water quality in a single scene and a large range, has a red-edge wave band highly related to the chlorophyll aconcentration, and has higher precision for inversion of the chlorophyll a concentration.

Description

technical field [0001] The invention relates to the technical field of information processing, in particular to a chlorophyll a concentration inversion method and system. Background technique [0002] Chlorophyll a concentration is one of the three elements of water color and an important indicator for water environment monitoring. At present, the monitoring methods of chlorophyll a concentration include on-site direct measurement and remote sensing indirect measurement. On-site direct measurement is to collect water samples on the spot, store them at low temperature, and then analyze them in the laboratory to obtain the chlorophyll-a concentration of the water at the sampling point. Due to the limited sampling points and sampling times of manual measurement, this method cannot comprehensively evaluate the distribution of chlorophyll-a in all water bodies. The remote sensing indirect measurement is through the relationship between the spectral characteristics of the water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G01N21/25G01N33/18
CPCG06F30/20G01N21/25G01N33/18
Inventor 申茜姚月汪明秀史佳睿王茹徐雯婷
Owner AEROSPACE INFORMATION RES INST CAS
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