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Evaluating lidar satellite measurements of atmospheric co 2 Comprehensive analysis system of concentration performance

A lidar and comprehensive analysis technology, applied in the measurement of color/spectral characteristics, etc., can solve the problems of limited detection area and low detection accuracy, and achieve the effect of improving prediction accuracy and speed, and accurate satellite inversion results.

Active Publication Date: 2019-09-10
WUHAN UNIV
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Problems solved by technology

Due to the limitations of traditional passive observation satellites that can only be used under good observation conditions, limited detection area and low detection accuracy

Method used

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  • Evaluating lidar satellite measurements of atmospheric co <sub>2</sub> Comprehensive analysis system of concentration performance
  • Evaluating lidar satellite measurements of atmospheric co <sub>2</sub> Comprehensive analysis system of concentration performance
  • Evaluating lidar satellite measurements of atmospheric co <sub>2</sub> Comprehensive analysis system of concentration performance

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specific Embodiment approach

[0058] The selection of the on wavelength includes rough selection and fine selection, and the fine selection is for the roughly selected on wavelength, through the low-altitude CO 2 Concentration weighted analysis of concentrations across the column to determine the on wavelength. For ease of understanding, the following will provide a specific implementation of on-wavelength selection: the purpose of rough selection of on-wavelength is to minimize the influence of the main interfering gas (i.e. water vapor), that is, the CO 2 Absorption spectrum data and H from HITEM2015 2 O absorption line data; compared to CO 2 and H 2 The absorption spectrum data of O is used to obtain roughly selected wavelengths. Since different gases have different absorption intensities at different wavelengths, in order to reduce the influence of water vapor, CO 2 The absorption intensity is large and the H 2 The wavelength with small absorption intensity of O is specifically selected manually b...

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Abstract

The invention discloses an integrated analysis system for evaluating performance of a laser radar satellite in measuring CO2 concentration. The system at least comprises a CO2 inversion module, a laser radar performance simulator, an earth environment simulator, an orbital simulator and a detection performance evaluation module, wherein the CO2 inversion module is used for simulating CO2 inversionwith a CO2 difference absorption laser radar method; the laser radar performance simulator is used for simulating launch energy and performance parameters of satellite-borne radar; the earth environment simulator is used for acquiring statistical values of required earth environment parameters and summarizing earth environment parameters in combination with the temporal resolution and the spatialresolution; the orbital simulator is used for simulating satellite orbit height and cloud parameters of to-be-evaluated satellites; the detection performance evaluation module is used for evaluatingCO2 inversion effects.

Description

technical field [0001] The invention belongs to the technical field of prediction of satellite feasibility schemes, and in particular relates to the evaluation of atmospheric CO measured by laser radar satellites. 2 Comprehensive analysis system for concentration performance. Background technique [0002] For a long time, due to global industrial development and energy consumption, a large amount of greenhouse gases have been emitted into the atmosphere, among which the greenhouse gas that plays the largest role in global warming is CO 2 . According to the statistical results of the Hawaii Observatory, CO 2 Concentrations have risen from 305ppm in 1900 to 375ppm in 2016. If the CO is not controlled in time 2 emissions, it will have a huge impact on the entire ecosystem. [0003] Since the Paris Association, CO 2 It is getting more and more attention from all over the world. The most notable among them belongs to China's "energy saving and emission reduction" campaign....

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/39
Inventor 史天奇韩舸厉青马鹏飞马昕龚威
Owner WUHAN UNIV
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