CO2 concentration layering inversion method and system of multi-wavelength laser radar

A technology of laser radar and concentration stratification, applied in radio wave measurement systems, instruments, etc., can solve problems such as not considering the real distribution status, and achieve the effect of small error

Active Publication Date: 2018-07-10
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 cha...

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  • CO2 concentration layering inversion method and system of multi-wavelength laser radar

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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 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-wavelength...

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Abstract

The invention provides a CO2 concentration layering inversion method and system of a multi-wavelength laser radar. The method comprises the following steps: S100, layering a CO2 concentration inversion integration route in a vertical direction according to the influence of weather and carbon circulation on CO2 concentration; S200, respectively establishing a corresponding CO2 concentration multi-wavelength inversion model and a weight model for each layer, and obtaining a CO2 column concentration calculation model of each layer; S300, performing linear equation aggregation according to the CO2column concentration calculation model of each layer, obtaining an observation equation adopting the CO2 column concentration of each layer as a to-be-calculated parameter, calculating the CO2 columnconcentration of each layer by adopting a linear least square method, and calculating the CO2 concentration of each layer according to the CO2 column concentration. According to the CO2 concentrationlayering inversion method and system of the multi-wavelength laser radar, the actual distribution state of CO2 in atmosphere is considered, and a CO2 concentration inversion result with higher accuracy can be obtained.

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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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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