Method for inverting aerosol components using LiDAR ratio and depolarization ratio

US11630051B2 · kind B2 · utility

Assignee

• Institute of Atmospheric Physics, Chinese Academy of Sciences · CN

Inventors

• Ting Yang · Taipei, TW
• Zifa Wang · Beijing, CN
• Futing Wang · Beijing, CN
• Xi Chen · Sunnyvale, US
• Haibo Wang · Shanghai, CN
• Hongyi Li · Ottawa, CA

Key dates

• Filing date: Apr 7, 2022
• Grant date: Apr 18, 2023
• Expiry date: Apr 7, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02A90/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for inverting aerosol components using a LiDAR ratio and a depolarization ratio, includes: S1. identifying sand dust, a spherical aerosol and a mixture of the sand dust and the spherical aerosol based on a depolarization ratio; S2. calculating a proportion of the sand dust in the mixture of the sand dust and the spherical aerosol; and S3. identifying soot and a water-soluble aerosol in the spherical aerosol based on a LiDAR ratio. In the present disclosure, only a wavelength with a polarization channel is needed, to identify the aerosol components, achieving high accuracy with low detection costs.