Characterizing Aerosol Optical Properties and Direct Radiative Effects From the Perspective of Components: A Synergy Retrieval Study Based on Sun Photometer and Lidar in Central China

IF 4.6 1区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

Geophysical Research Letters Pub Date : 2025-02-12 DOI:10.1029/2024GL113448

Shikuan Jin, Yingying Ma, Hui Li, Boming Liu, Ruonan Fan, Ming Zhang, Anton Lopatin, Oleg Dubovik, Xiuqing Hu, Wei Gong, Lunche Wang

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Abstract

Exploring various properties of aerosols can help to better understand global climate changes, emissions, and environment. In this study, a synergy observation experiment from sun photometer and Lidar was carried out to reveal aerosol optical properties and direct radiative effect (DARE) in Central China from the novel perspective of aerosol components. Our results showed that the annual mass concentration of black carbon (BC) was low (2.49 mg/m²), but having large heating effect with the DARE of 9.27 W/m² at the top of atmosphere. The brown carbon was found highest in summer (0.52 mg/m²) and its annual DARE was 0.10 W/m², close to the average of China. Additionally, retrieved columnar concentration of BC had the same magnitude with the MEERA-2 product, and showed better results at the surface (R = 0.56) because the considering of aerosol vertical profiles. This study showed the significance of exploring expanded aerosol information from observations.

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组分视角下气溶胶光学特性和直接辐射效应的表征——基于太阳光度计和激光雷达的协同检索研究

探索气溶胶的各种特性有助于更好地了解全球气候变化、排放和环境。利用太阳光度计和激光雷达协同观测实验，从气溶胶组分的新视角揭示了中部地区气溶胶光学特性和直接辐射效应（DARE）。结果表明：大气顶部黑碳（BC）的年质量浓度较低（2.49 mg/m2），但具有较大的升温效应，DARE为9.27 W/m2；夏季褐碳含量最高（0.52 mg/m2），年均DARE为0.10 W/m2，接近全国平均水平。此外，反演的BC柱状浓度与MEERA-2产品的量级相同，并且由于考虑了气溶胶垂直剖面，在地表表现出更好的结果（R = 0.56）。这项研究显示了从观测中探索扩展气溶胶信息的重要性。

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来源期刊

Geophysical Research Letters 地学-地球科学综合

CiteScore

9.00

自引率

9.60%

发文量

1588

审稿时长

2.2 months

期刊介绍： Geophysical Research Letters (GRL) publishes high-impact, innovative, and timely research on major scientific advances in all the major geoscience disciplines. Papers are communications-length articles and should have broad and immediate implications in their discipline or across the geosciences. GRLmaintains the fastest turn-around of all high-impact publications in the geosciences and works closely with authors to ensure broad visibility of top papers.