This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:


peer-reviewed publication

trusted source


Advanced detection technology developed for vertical profile of aerosol light scattering and absorption

Advanced detection technology developed for aerosol single scattering albedo vertical profile
Credit: ZHOU Jiacheng

Researchers led by Prof. Zhang Weijun from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences have achieved the first in-situ measurement of the vertical profile aerosol single scattering albedo (SSA). The study was published in Optics Express.

Aerosol SSA (the ratio of scattering to extinction coefficient) is a key input parameter for assessing . Measuring the vertical of SSA is of important for understanding radiation interactions and aerosol-atmosphere boundary layer feedbacks. However, direct measurement of the SSA vertical profile remains challenging. Although some aircraft observations have been made, there are still large uncertainties. There is an urgent need to develop a new instrument to accurately measure the SSA vertical profile.

In this study, to obtain the SSA vertical profile, a new custom cage-based optical system, and high-precision temperature and current controller were adopted to solve the influence of vibration and temperature changes during flight.

Furthermore, in combination with a self-producing gas source and independent power supply, the unmanned aerial vehicle-borne cavity-enhanced albedometer (CEA) was developed.

Compared with the first CEA developed by the team in 2014, this system is improved in many aspects. It consists of a petrol-powered hexacopter (with a payload of 40 kg and an endurance time of more than one hour) and a miniaturized CEA, and was equipped with various auxiliary probes, including of a micro-aethalometer, an aerosol optical particle sizer, and an ozone sensor.

Now the system has been applied to the comprehensive observation experiment of aerosol optical vertical profiles at the Shouxian National Climatological Observatory from 2020 to 2021, which can provide a valuable and unique tool and accurate observation data for studying the optical properties of aerosols and their influence on physical and in the atmospheric boundary layer.

More information: Jiacheng Zhou et al, Unmanned-aerial-vehicle-borne cavity enhanced albedometer: a powerful tool for simultaneous in-situ measurement of aerosol light scattering and absorption vertical profiles, Optics Express (2023). DOI: 10.1364/OE.493696

Journal information: Optics Express

Citation: Advanced detection technology developed for vertical profile of aerosol light scattering and absorption (2023, June 21) retrieved 28 November 2023 from
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

New study highlights importance of brown carbon in global climate change


Feedback to editors