An Inversion Method of Atmospheric Aerosol Motion Parameters

Abstract

The invention proposes an inversion method of atmospheric aerosol motion parameters, which uses three laser radars to detect the atmosphere at the same time, and three points A, B and C are respectively three measurement points on the detection path of the three laser radars, including The following steps: step (1) according to the one-dimensional matrix of the lidar signals of point A and point C in continuous time, calculate the speed in the direction of A-C; step (2) the aerosol group moves from A to point C along the wind direction , according to the actual moving distance of the aerosol group in the moving direction, calculate the relationship between the speed in the A-C direction, the actual moving speed, and the moving direction; step (3) According to the laser radar signals of points A and B in continuous time The one-dimensional matrix of , calculates the velocity in the A-B direction; step (4) the aerosol group moves from A to point B along the wind direction, and calculates the A-B direction according to the actual moving distance of the aerosol group in the moving direction The relationship between the speed and the actual movement speed and movement direction; step (5) is based on the speed v in the A-B direction 1 and the velocity v in the A‑C direction 2 Calculate the real velocity and direction of the atmospheric aerosol.

Description

technical field [0001] The invention relates to an inversion method of atmospheric aerosol motion parameters, belonging to the field of atmospheric science. Background technique [0002] Atmospheric aerosols refer to various solid, liquid and mixed solid-liquid particles suspended in the atmosphere, and the particle size is generally 0.001 to 100 μm. Although aerosols make up only a small part of the atmosphere, they play an important role in many atmospheric processes, with significant effects on Earth's radiative transfer, air quality, clouds, precipitation, and chemical processes in the troposphere and stratosphere. The motion parameters of atmospheric aerosols are of great significance to the study of atmospheric pollution transmission, aerosol deposition, aerosol diffusion, atmospheric radiation processes, and precipitation formation processes. [0003] Existing atmospheric aerosol motion parameters are generally combined with lidar and conventional wind speed and dire...

AI Technical Summary

Problems solved by technology

Since the detection path of the lidar and the Doppler wind radar cannot be consistent, and the inversion process is generally calculated by the model, the results of the atmospheric aerosol motion parameters obtained by this method have large errors and cannot truly reflect the Movement of aerosols, and at a higher cost

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