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co of multi-wavelength lidar 2 Concentration layered inversion method and system

A technology of lidar and concentration stratification, applied in radio wave measurement systems, instruments, etc., can solve problems such as not considering the real distribution situation

Active Publication Date: 2021-09-14
WUHAN UNIV
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Problems solved by technology

[0010] Existing CO 2 None of the differential absorption LiDAR retrieval methods considered CO in the atmosphere 2 The true distribution of CO2 also ignores the changes in the pressure in the atmosphere and air mass (air mass) and other influencing factors, so the CO 2 There is still room for further improvement in inversion accuracy

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  • co of multi-wavelength lidar <sub>2</sub> Concentration layered inversion method and system
  • co of multi-wavelength lidar <sub>2</sub> Concentration layered inversion method and system
  • co of multi-wavelength lidar <sub>2</sub> Concentration layered inversion method and system

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[0053] In order to illustrate the present invention and / or the technical solutions in the prior art more clearly, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other accompanying drawings based on these drawings and obtain other implementations.

[0054] The following will combine figure 1 Further explain the technical theory and specific implementation process required by the present invention.

[0055] (1) The principle and specific implementation process of multi-wavelength inversion.

[0056] The principle of multi-wavelength inversion is the same as that of traditional dual-wavelength inversion. To facilitate understanding, the technical principle of multi-wavelength inversion will be described in detail below. The multi-wavel...

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Abstract

The CO of the multi-wavelength laser radar provided by the present invention 2 Concentration layered inversion method and system, including: S100 CO2 analysis based on climate and carbon cycle 2 The degree of influence of concentration, in the vertical direction on CO 2 The integration path of concentration inversion is layered; S200 constructs the corresponding CO 2 Concentration multi-wavelength inversion model and weight model to obtain CO in each layer 2 Column concentration calculation model; S300 according to the CO of each layer 2 The column concentration calculation model performs a set of linear equations to obtain the CO concentration in each layer 2 The column concentration is used as the observation equation of the parameter to be solved, and the linear least square method is used to solve the CO in each layer. 2 Column concentration, according to CO 2 Calculate the column concentration to obtain the CO in each layer 2 concentration. The present invention takes into account CO in the atmosphere 2 The real distribution state of the , can obtain more accurate CO 2 Concentration inversion results.

Description

technical field [0001] The invention belongs to satellite inversion CO 2 Concentration technical field, especially CO related to multi-wavelength lidar 2 Concentration layered inversion method and system. Background technique [0002] "Global warming" has become the hottest topic of environmental protection. Global warming is mainly caused by greenhouse gases. The formation process of this phenomenon is: the ground receives the short wave of solar radiation and emits part of the long wave to the atmosphere, and the greenhouse gas absorbs a large amount of energy emitted by the long wave of the ground radiation, so the temperature between the ground and the greenhouse gas gradually rises. Greenhouse gases mainly include CO 2 、CH 4 , water vapor, etc., in these gases, CH 4 The impact efficiency is the highest, CO 2 next. But CO 2 The content is about CH 4 4 times that of CO 2 Considered the most important greenhouse gas. So study CO 2 The carbon sources and carbon ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/48
CPCG01S7/4802
Inventor 韩舸史天奇徐浩梁艾琳马昕龚威
Owner WUHAN UNIV
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